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Solution synthesis of single-crystalline Fe2GeS4 nanosheets

Title
Solution synthesis of single-crystalline Fe2GeS4 nanosheets
Authors
Lim, DH[Lim, Da-Hye]Ramasamy, P[Ramasamy, Parthiban]Lee, JS[Lee, Jong-Soo]
DGIST Authors
Lim, DH[Lim, Da-Hye]; Ramasamy, P[Ramasamy, Parthiban]; Lee, JS[Lee, Jong-Soo]
Issue Date
2016-11-15
Citation
Materials Letters, 183, 65-68
Type
Article
Article Type
Article
Keywords
Band-GapColloidal SynthesisCrystalline MaterialsEnergy GapFe2GeS4NanosheetsOne-Pot SynthesisPhotovoltaic ApplicationsReaction ConditionsSemiconductorSemiconductor MaterialsSilicate MineralsSingle-CrystallineSolar EnergySolar Energy MaterialsThermodynamically StableThin Film Photovoltaics
ISSN
0167-577X
Abstract
Pyrite (FeS2) has been extensively studied as low cost light absorber in thin film photovoltaics. However, the instability of FeS2 phase limits its performance in photovoltaics. Recently, olivine Fe2GeS4 has been proposed as thermodynamically stable alternative for the unstable FeS2 phase. Despite its attractive properties, studies on this material is quite limited. This is due to the difficulties associated with the synthesis. Herein, we report a simple one-pot colloidal synthesis of Fe2GeS4 nanosheets using 1-dodecanethiol as air-stable sulfur source. We have studied the favorable reaction conditions to form phase pure Fe2GeS4 nanosheets. The nanosheets are single-crystalline in nature and have an average size of 800 nm and thickness around 64 nm. The optical band gap of Fe2GeS4 is calculated to be 1.38 eV, which is optimal for photovoltaic applications. © 2016
URI
http://hdl.handle.net/20.500.11750/2127
DOI
10.1016/j.matlet.2016.07.072
Publisher
Elsevier B.V.
Related Researcher
  • Author Lee, Jong Soo Multifuntional Nanomaterials & Energy Devices Lab(MNEDL)
  • Research Interests
Files:
There are no files associated with this item.
Collection:
Energy Science and EngineeringMNEDL(Multifunctional Nanomaterials & Energy Devices Lab)1. Journal Articles


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