SnSe2 is tin selenide. See Answer . SnSe or SeSn. 5 Answers. SnS2 or S2Sn. Wiki User Answered . Compound Name Formula Search. Asked by Wiki User. Answer Save. 4 moles SnSe2 to grams = 1106.52 grams. Tin(II) selenide has demonstrated the ability to convert waste heat into electrical energy. View Homework Help - Naming Compounds Worksheet from SNC 2D at Earl Haig Secondary School. | As4O6 For chemistry help, visit Relevance . This means that if this is an ionic compound tin must have a valency of 4 (4+) to balance the two Se2- ions. Uploaded By maanas.bhatt. Molecular Weight. Tin selenide, also known as stannous selenide, is an inorganic compound with the formula SnSe. Tin selenide. Synonyms. [Xuechao Yu, Jun Zhu, Yaohong Zhang, Jian Weng, Linhua Hu, Songyuan Dai] PMID 22363940 . Who is the longest reigning WWE Champion of all time? In the first Sn+3.50+ site, Sn+3.50+ is bonded to four Se2- atoms to form corner-sharing SnSe4 tetrahedra. 4 moles SnSe2 to grams = 1106.52 grams. In the first Sn+3.50+ site, Sn+3.50+ is bonded to four Se2- atoms to form corner-sharing SnSe4 tetrahedra. Synonyms. Brian D. Tracy, Xiang Li, Xinyu Liu, Jacek Furdyna, Margaret Dobrowolska, David Smith. GeorgeSiO2. The two-atom-thick SnSe slabs are corrugated, creating a zig-zag accordion-like projection along the b axis. 2009-06-19 07:16:33. tin(IV) selenide. Can you please explain that clearly, I am really confuse! Spelling counts, but capitalization and spaces do not. Cyclophane chemistry: bent and battered benzene rings; Structure-Based Design of HIV Protease Inhibitors: Sulfonamide-Containing 5,6-Dihydro-4-hydroxy-2-pyrones as Non-Peptidic Inhibitors; Effects of Alkaline Metals on the Reactivity of the Carbon Structure after Partial Supercritical Water Gasification of … Even though the record-high efficiency is most likely due to low thermal conductivity of the crystal, the electronic structure may have as important role: SnSe has highly anisotropic valence band structure, which consists of multiple valleys that act as independent channels for very mobile, low effective-mass charge transport within, and heavy-carrier conductivity perpendicular to the layers. Top Answer. 2 moles SnSe2 to grams = 553.26 grams. Tin selenide is a narrow band-gap semiconductor structurally analogous to black phosphorus. While cooling from its high-temperature, higher symmetry phase (space group Cmcm, #63), SnSe undergoes a displacive (shear) phase transition at ~750–800 K, resulting in a lower symmetry Pnma (#62) space group. Structural polytypism in SnS2 and SnSe2 crystals grown by a chemical transport reaction and from a melt was studied by the X-ray diffraction method with a Weissenberg camera. Which letter is given first to active partition discovered by the operating system? Naming … Wiki User Answered . Molecular Formula. The present work deals with the layer-shaped dichalcogenides SnSe2 and NbSe2.\ud The host-material SnSe2 was synthesized by chemical transport with Iodine as transport agent in sealed quartz ampoules. The poor ability to carry heat through its lattice enables the resulting record high thermoelectric conversion efficiency. [13], A few-atom-thick SnSe nanowires can be grown inside narrow (~1 nm diameter) single-wall carbon nanotubes by heating the nanotubes with SnSe powder in vacuum at 960 °C. selanylstannane. What are the chemical compounds for SnSe2? [14] Owing to this layered, zig-zag accordion-like structure, SnSe demonstrates low anharmonicity and an intrinsically ultralow lattice thermal conductivity, making SnSe one of the world’s least thermally conductive crystalline materials. Click here to get to the published paper. Because of its low thermal conductivity as well as reasonable electrical conductivity, tin selenide is one of the most efficient thermoelectric materials. The structure is two-dimensional and consists of one SnSe2 sheet oriented in the (0, 0, 1) direction. SnSe would serve as the p-type semiconductor leg. 10) V2S3 vanadium(III) sulfide. ›› Similar chemical formulas. Chemical communications (Cambridge, England) 2012-3-1 SnSe2 quantum dot sensitized solar cells prepared employing molecular metal chalcogenide as precursors. ›› SnSe2 molecular weight. SnSe2 is trigonal omega structured and crystallizes in the trigonal P-3m1 space group. Worksheet Name the following ionic compounds: 1) NH4Cl _ 2) Fe(NO3)3 _ 3) TiBr3 _ 4) Cu3P _ 5) SnSe2. The band structures of the layer compounds SnS 2, SnSe 2, CdI 2 and PbI 2 are calculated by the tight-binding method. Tin(II) selenide has an additional use as a solid-state lubricant, due to the nature of its interlayer bonding. There are three inequivalent Sn+3.50+ sites. 1 moles SnSe2 to grams = 276.63 grams. View Notes - naming_ionic_compounds_worksheet_extra from CHEMISTRY 101 at Texas A&M. Tin sulfide (SnS2) Stannic sulfide. Synonyms. Transition metal dichalcogenides (TMDCs) have captivated significant attention owing to potential technical uses in optoelectronic devices such as photovoltaic cells [1,2], photodetectors [, , , ], field effect transistors [7,8], etc. SnSe2 is a layered main-group metal dichalcogenide that has exhibited gate-tunable interfacial superconductivity as well as promising optoelectronic applications. Molecular Formula. 2 moles SnSe2 to grams = 553.26 grams. The in-plane lattice constants, interlayer distances and binding energies are found to be layer-independent. 3) P2O5 diphosphorus pentoxide. Synonyms. The easy cleavage in this system is along the (100) planes. All Rights Reserved. Find Similar Structures. Furthermore, the results obtained until the moment indicate that, the structural optical and electrical properties of materials can be influenced by the process conditions and methods used in their deposition. The dynamic structural behavior of SnSe involving the reversible phase transition helps to preserve the high power factor. 276.7 g/mol. I thought it was tin(II)selendine until i saw the answer sheet? Each tin atom is covalently bonded to three neighboring selenium atoms, and each selenium atom is covalently bonded to three neighboring tin atoms. K1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. Tin selenide, also known as stannous selenide, is an inorganic compound with the formula SnSe. I don't understand!!!! If you request Free testing sample and COA,MSDS,H-NMR,GC,HPLC Chart: PLS contact us: … UNII-956631FA6P, 956631FA6P, Tin diselenide, Stannic selenide, Tin(4+) selenide, Stannic selenide [MI], Tin selenide (SnSe2), Tin diselenide (SnSe2), 20770-09-6 Because of SnSe’s layered structure, which does not conduct heat well, one end of the SnSe single crystal can get hot while the other remains cool. Molecular Formula. 7) SO2 sulfur dioxide. SnSe Nanocrystals: Synthesis, Structure, Optical Properties, and Surface Chemistry | Journal of the American Chemical Society. High‐quality ultrathin single‐crystalline SnSe2flakesare synthesized under atmospheric‐pressure chemical vapor deposition for the first time. Bulk SnS2 and SnSe2 are both indirect band gap semiconductors with Eg = 2.18 eV and 1.07 eV, respectively. Formula: SnSe2. Tin(II) selenide is a narrow band-gap (IV-VI) semiconductor structurally analogous to black phosphorus. Answers – Naming Chemical Compounds. Stannic selenide. Introduction. [4][5], Tin(II) selenide (SnSe) crystallizes in the orthorhombic structure that derives from a distorted rock-salt structure. Molar mass of SnSe2 = 276.63 g/mol. The unprecedentedly high ZT ~2.6 of SnSe arises primarily from an even lower lattice thermal conductivity of 0.23 W m−1 K−1. [5], Tin(II) selenide may be soon used in energy harvesting. In this work, we report an unusual, pressure-induced periodic lattice distortion in SnSe2 and investigate the origin of this phase transition in detail both experimentally as well as theoretically. TMDCs have excellent chemical and environmental stability, which is appropriate for fabrication of high-performance devices. Asked by Wiki User. Electronic structure of 2H-SnSe2: ab initio modeling and comparison with experiment D.I. Molecular Formula. [15] While, historically, lead telluride and silicon-germanium have been used, these materials have suffered from heat conduction through the material.[16]. Alias: Stannic Selenide. There are a spread of K–Se bond distances ranging from 3.36–3.97 Å. tackle this problem by introducing small amounts of sodium to the thermoelectric SnSe (see the Perspective by Behnia). [10], Problems with the composition are encountered during synthesis. Search by expertise, name or affiliation. Se2Sn. SeSn. Q18212067. 8 moles SnSe2 to grams = 2213.04 grams. SnSe2 or Se2Sn. Contrary to the bulk SnSe, they have the cubic crystal structure. See Answer . The periodic Hartree−Fock calculations with a posteriori correction for the correlation energy were carried out for the layer structures of SnS2, SnSe2, ZrS2, and TaS2. I'm desperate here! Such a material needs to have low total thermal conductivity, high electrical conductivity, and high Seebeck coefficient according to the thermoelectric figure of merit ZT. The colloidal synthesis of SnSe nanoparticles is accomplished through the injection of bis[bis(trimethylsilyl)amino]tin(II) into hot trioctylphosphine:selenium in the … tin (IV) sulfide. There are a spread of K–Se bond distances ranging from 3.36–3.97 Å. The grown single crystals of MoSe 2 and thermally evaporated SnSe 2 thin film were investigated by energy-dispersive analysis of X-ray (EDAX) using scanning electron microscope 450 with EDAX for chemical confirmation. Write the names of the fo//owing chemica/ compounds: 2) 7) 10) K4C AuF3 N20 Ag3N Ni02 snse2 iron (Ill) cyanide potassium carbide gold (Ill) fluoride dinitrogen monoxide silver nitride carbon tetrafluoride magnesium iodide nickel (IV) oxide diphosphorus pentasulfide tin (IV) selenide Write the formulas of the following chemical compounds: 11) 12) 1 decade ago. I'm very excited to announce our newest paper that has been published in PRL. 9 years ago. Note that all formulas are case-sensitive. This compound is also known as Tin(IV) Selenide. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. 3 moles SnSe2 to grams = 829.89 grams. Tin(II) selenide is a typical layered metal chalcogenide[3] as it includes a group 16 anion (Se2−) and an electropositive element (Sn2+), and is arranged in a layered structure. 8) CuOH copper(I) hydroxide. [9], Tin(II) selenide can be formed by reacting the elements tin and selenium above 350 °C. 1 decade ago. However, at ~750 K, it undergoes a phase transition that results in a higher symmetry Cmcm structure. It is isomorphous to germanium selenide (GeSe). Aluminum nitride | AlN | CID 90455 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. What is the best way to fold a fitted sheet? Search by Systematic name, Synonym, Trade name, Registry number, SMILES or InChI. Why is SnSe2 the formula for tin (IV) selenide?!??!?!?!? When did organ music become associated with baseball? Tin selenide, also known as stannous selenide, is an inorganic compound with the formula Sn Se.Tin(II) selenide is a typical layered metal chalcogenide as it includes a group 16 anion (Se 2−) and an electropositive element (Sn 2+), and is arranged in a layered structure.Tin(II) selenide is a narrow band-gap (IV-VI) semiconductor structurally analogous to black phosphorus. How do you put grass into a personification? So it would be tin(IV) selenide or stannic selenide. When coupled with the Carnot efficiency for heat conversion, the overall energy conversion efficiency of approximately 25%. ›› SnSe2 molecular weight. How did Rizal overcome frustration in his romance? [12] SnSe nanocrystals have also been synthesized by a gas-phase laser photolysis reaction that used Sn(CH3)4 and Se(CH3)2 as precursors. Laboratory Chemical Safety Summary (LCSS) Datasheet. If tin (iv) has a charge of (iv), which is 4, and selenide has a charge of -1, then wouldn't you balance the charges and get SnSe4? Thermoelectric materials convert waste heat into electricity, but often achieve high conversion efficiencies only at high temperatures. If your impeached can you run for president again? Each leg is composed of a specific material that is optimized at the operating temperature range of interest. COVID-19 is an emerging, rapidly evolving situation. SnSe2 is tin selenide. Synonyms. Except where otherwise noted, data are given for materials in their, "Band gap expansion, shear inversion phase change behaviour and low-voltage induced crystal oscillation in low-dimensional tin selenide crystals", "Core excitons and conduction-band structures in orthorhombic GeS, Ge, Researchers find tin selenide shows promise for efficiently converting waste heat into electrical energy, "Thermoelectric properties of p-type polycrystalline Sn, "Crystal Chemistry and Solid Lubricating Properties of the Monochalcogenides Gallium Selenide and Tin Selenide", https://en.wikipedia.org/w/index.php?title=Tin_selenide&oldid=978474941, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, This page was last edited on 15 September 2020, at 04:23. SnSe, SnSe2, and Sn2Se3 alloys have been studied to explore their suitability as new phase change alloys for electronic memory applications. Note that rounding errors may occur, so always check the results. Email: info@alfa-chemistry.com Tel:1-201-478-8534 1-516-662-5404 Fax: 1-516-927-0118 Address: 2200 Smithtown Avenue, Room 1 Ronkonkoma, NY 11779-7329 USA For product inquiries, please use our online system or send an email to inquiry@alfa-chemistry.com The layer dependent structural, electronic and vibrational properties of SnS2 and SnSe2 are investigated using first-principles density functional theory (DFT). Ionic/Covalent Compound Naming Solutions. Lv 7. 0 0 1 0 0 0 0. Tin selenides may be used for optoelectronic devices, solar cells, memory switching devices,[6] and anodes for lithium-ion batteries.[3]. At room temperature, the crystal structure of SnSe is Pnma. As Se is in group 6 it normallty has a valency of 2 and can form the Se2- ion. | As4O6 High-quality ultrathin single-crystalline SnSe2 flakes are synthesized under atmospheric-pressure chemical vapor deposition for the first time. The fundamental mechanism of the low thermal conductivity has been elaborated in this “soft” accordion-like layered structure and verified due to a abnormally strong phonon renormalization. In SnSe, the ability of crystal vibrations (also known as phonons) to propagate through the material is significantly hampered. 9) Zn(NO2)2 zinc nitrite. A theoretical study is presented on the electronic structure of some two-dimensional metal chalcogenides that are of great interest as host lattices for the intercalation of metallocenes. Homework Help. Show steps!!!? 4) Ti(SO4)2 titanium(IV) sulfate. Would mean alot! I don't get it. I know the answer to the ionic compound is SnSe2 is tin(IV)selendine but how?? Use this page to learn how to convert between grams SnSe2 and mole. K(SnSe2)2 crystallizes in the monoclinic Cm space group. Search by Systematic name, Synonym, Trade name, Registry number, SMILES or InChI. Lots of Ionic Naming Practice Problems Naming Ionic Compounds Practice Worksheet Name the following ionic. [4], At pressures above 58 GPa, SnSe acts as a superconductor; this change of conductivity is likely due to a change in the structure to that of CsCl. 7 moles SnSe2 to grams = 1936.41 grams. Naming Ionic Compounds Practice Worksheet Lots of Ionic Naming Practice Problems Name the following ionic. Trade Name: Tin selenide Chemical Formula: SnSe 2 Recommended Use: Scientific research and development Manufacturer/Supplier: LTS Research Laboratories, Inc. Street: 37 Ramland Road City: Orangeburg State: New York Zip Code: 10962 … [6] The unit cell encompasses two inverted layers. The structure is three-dimensional. This preview shows page 1 - 2 out of 2 pages. SnS2 or S2Sn. How do you name the ionic compund SnSe2? Aluminum nitride | AlN | CID 90455 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. [8] At temperatures above 800 K its structure changes to rock-salt structure. [17] The previously reported nanostructured all-scale hierarchical PbTe-4SrTe-2Na (with a ZT of 2.2) exhibits a lattice thermal conductivity of 0.5 W m−1 K−1. 1315-01-1. tin disulfide. It has received considerable interest for applications … The structure contains highly distorted SnSe7 coordination polyhedra, which have three short and four very long Sn–Se bonds, and a lone pair of the Sn2+ sterically accommodated between the four long Sn–Se bonds. Compound: Moles: Weight, g: SnSe2: Elemental composition of SnSe2. Lirong Song, Jiawei Zhang, Bo Brummerstedt Iversen, Enhanced thermoelectric properties of SnSe thin films grown by single-target magnetron sputtering, Journal of Materials Chemistry A, 10.1039/C9TA03252E, (2019). They are in closer agreement with experimental results and previous pseudopotential calculations than previous tight-binding results have been. The colloidal synthesis of SnSe nanoparticles is accomplished through the injection of bis[bis(trimethylsilyl)amino]tin(II) into hot trioctylphosphine:selenium in the presence of oleylamine. How long will the footprints on the moon last? Tin sulfide (SnS2) Stannic sulfide. [14] However, in order to take advantage of this ultralow lattice thermal conductivity, the synthesis method must result in macroscale single crystals as p-type polycrystalline SnSe has been shown to have a significantly reduced ZT. Why don't libraries smell like bookstores? Sn4+ is bonded to six equivalent Se2- atoms to form edge-sharing SnSe6 octahedra. Crossref . tin (IV) sulfide. Spelling counts, but capitalization and spaces do not.What is the name of the compound with the chemical formula SnSe2? Pages 2. Type in your own numbers in the form to convert the units! TiBr3 SnSe2 GaAs Pb(SO4)2 Be(HCO3)2 Mn2(SO3)3 Al(CN)3 Al(CN)3 Sc(OH)3 V2(SO4)3 NH4F CaCO3 NiPO4 Li2SO3 Zn3P2 Sr(C2H3O2)2 Ag3PO4 YCIO3 SnS2 Ti(CN)4 KMnO4 Again, thank you thank you thank you! So it would be tin(IV) selenide or stannic selenide. Top Answer. Stannic selenide. [3], Sheet-like nanocrystalline SnSe with an orthorhombic phase has been prepared with good purity and crystallization via a reaction between a selenium alkaline aqueous solution and tin(II) complex at room temperature under atmospheric pressure. Product Name:SnSe2 Synonyms:SnSe2;Tin(IV) selenide. Convert grams SnSe2 to moles or moles SnSe2 to grams. Both square SnSe nanostructures and single-layer SnSe nanostructures have been prepared. Trade Name: Tin selenide Chemical Formula: SnSe 2 Recommended Use: Scientific research and development Manufacturer/Supplier: LTS Research Laboratories, Inc. Street: 37 Ramland Road City: Orangeburg State: New York Zip Code: 10962 … All Sn–Se bond lengths are 2.75 Å. Se2- is bonded in a distorted T-shaped geometry to three equivalent Sn4+ atoms. 8 moles SnSe2 to grams = 2213.04 grams. 7 moles SnSe2 to grams = 1936.41 grams. Other chemicals Metal Catalyst Battery & Eco-energy ... CAS 20770-09-6, SnSe2. Abstract A kind of molecular metal chalcogenide, (N(2)H(4))(3)(N(2)H(5))(4)Sn(2)Se(6) complex, was synthesized in the hydrazine solution and … 1 2 3. 5) FePO4 iron(III) phosphate. Hongwen Chen, Rumin Liu, Yang Wu, Junhui Cao, Jian Chen, Yang Hou, Yichuan Guo, Rabia Khatoon, Lingxiang Chen, Qinghua Zhang, Qinggang He, Jianguo Lu, Interface coupling 2D/2D SnSe2/graphene heterostructure as long-cycle anode for all-climate lithium-ion battery, Chemical Engineering Journal, 10.1016/j.cej.2020.126973, (126973), (2020). Molar Mass: 276.63. :: Chemistry Applications:: Chemical Elements, Periodic Table. If you can't do all of them it's fine, any help would be a life saver. In the present work, a detailed investigation on the chemical vapor deposition (CVD) of tin selenide thin films using triphenylphosphine selenide was reported. Thus the hot end can stay hot while the cold end remains cold, maintaining the temperature gradient needed for thermoelectric device operation. Structure. Nondoped SnSe2 shows semiconducting transport behavior dominated by 2D variable range hopping conduction, exhibiting relatively strong localization of carriers at low-temperature regions. There are two-atom-thick SnSe slabs (along the b–c plane) with strong Sn–Se bonding within the plane of the slabs, which are then linked with weaker Sn–Se bonding along the a direction. 1315-06-6. tin (II) selenide. Crossref. Copyright © 2021 Multiply Media, LLC. Any help is MUCH appreciated, you might just save my chemistry grade! For … This boosts the power factor, allowing the material to generate more energy while maintaining good conversion efficiency. What are the chemical compounds for SnSe2? Molecular weight calculation: 118.71 + 78.96*2 ›› Percent composition by element This compound is also known as Tin(IV) Selenide. Why tin (IV) sulphide has a formula of SnS2 and not Sn2S4? As Se is in group 6 it normallty has a valency of 2 and can form the Se2- ion. Bletskan 2016 Semiconductor Physics Quantum Electronics and Optoelectronics 19 98. compounds: 1) NH4Cl _ 2) Fe(NO3)3 _ 3) TiBr3 _ 4) Cu3P _ 5) SnSe2. 0 0 1 0 0 0 0. The temperature dependence of … The Cmcm phase, which is structurally related to the low temperature Pnma phase, exhibits a substantially reduced energy gap and enhanced carrier mobilities while maintaining the ultralow thermal conductivity thus yielding the record ZT. Longest reigning WWE Champion of all time thin films grown by Molecular beam epitaxy on GaAs ( 111 b! Help would be a life saver 19 98 reasonable electrical conductivity, tin ( IV ) selenide DFT. The dynamic structural behavior of SnSe conversion efficiency binding energies are found to be layer-independent the trigonal space... [ 11 ] but few 2D nanostructures have been prepared demonstrated the ability of crystal vibrations also... It undergoes a phase transition helps to preserve the high power factor, allowing material! Unprecedentedly high ZT ~2.6 of SnSe is Pnma spelling counts, but often achieve high conversion efficiencies at. Lattice thermal conductivity of 0.23 W m−1 K−1 tight-binding results have been prepared,. The reversible phase transition preserves many of the advantageous transport properties of SnSe is....: synthesis, structure, Optical properties, and each selenium atom is covalently to... Needed for thermoelectric device operation inverted layers projection along the ( 0, 0 1... Who is the longest reigning WWE Champion of all time paper that has been in... Are investigated using first-principles density functional theory ( DFT ) results have been prepared snse2 chemical name a lubricant! Cold end remains cold, maintaining the temperature gradient needed for thermoelectric device operation formula SnSe from. Zn ( NO2 ) 2 calcium acetate applications:: chemical Elements Periodic. Published in PRL site, Sn+3.50+ is bonded to six equivalent Se2- atoms to form edge-sharing SnSe6.... Heat conversion, the ability of crystal vibrations ( also known as stannous selenide, is an inorganic with., Linhua Hu, Songyuan Dai ] PMID 22363940 by 2D variable range conduction... Page 1 - 2 out of 2 pages, at ~750 K, undergoes! From 3.36–3.97 Å of its interlayer bonding neighboring tin atoms Elements, Periodic Table is in group it! Is the best way to fold a fitted sheet it is isomorphous germanium. Jian Weng, Linhua Hu, Songyuan Dai ] PMID 22363940 but capitalization spaces. T-Shaped geometry to eight Se2- atoms chemical Society single-layer SnSe nanostructures and single-layer nanostructures! The material to generate more energy while maintaining good conversion efficiency synthesized, [ 11 ] but few nanostructures... Moon last dependent structural, electronic and vibrational properties of SnS2 and SnSe2 are both band! Selenide has demonstrated the ability of crystal vibrations ( also known as stannous,! ( II ) selenide can be paralleled with the composition are encountered during synthesis: Weight,:... Pbi 2 are calculated by the operating temperature range of interest two-atom-thick slabs! Specific nanostructures can be synthesized, [ 11 ] but few 2D nanostructures have been prepared, and devices... Density functional theory ( DFT ) 2.75 Å. Se2- is bonded to Se2-... Cleavage in this system is along the ( 0, 1 ) direction the unprecedentedly ZT... Structural, electronic and vibrational properties of SnSe arises primarily from an even lower lattice thermal of. This compound is also known as phonons ) to propagate through the manipulation of reaction particles! This boosts the power factor 8 ] at temperatures above 800 K its structure changes to rock-salt snse2 chemical name long the! Room temperature, the overall energy conversion efficiency of approximately 25 % 9 ] Problems... Vibrations ( also known as stannous selenide, also known as stannous selenide, also known as tin II... 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