Cu–In intermetallic compound inks for CuInS2 solar cells

Chen, Guanbi; Wang, Lei; Sheng, Xia; Yang, Deren

doi:10.1007/s10854-010-0271-z

Cited by 10 publications

(19 citation statements)

References 31 publications

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“…Recently a lot of research was conducted on preparation methods using bimetallic CuIn nanoparticles for roll-to-roll processing of copper indium diselenide (CISe) solar cell absorbers [3][4][5][6][7]. Efficiencies of cells processed by this route range from 1.43% [3] to 7% [4].…”

Section: Introductionmentioning

confidence: 99%

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Optimising The Parameters For The Synthesis Of Cuin-Nanoparticles By Chemical Reduction Method For Chalcopyrite Thin Film Precursors

et al. 2013

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Roll-to-roll deposition techniques for the fabrication of chalcopyrite solar cells are of major interest and are a promising alternative to state of the art vacuum processes. However, for roll-to-roll processes the preparation of precursor materials like nanoparticle inks is a crucial point. In this work a study on the preparation technique of copper-indium intermetallic nanoparticles was conducted. The preparation of the nanoparticles is based on the chemical reduction of copper and indium cations with sodium borohydride. Different parameters are discussed regarding their influence on (1) size and shape of the nanoparticles, (2) Cu/In ratio within the synthesised nanoparticles and (3) yield of the synthesis. Results show a strong dependency of the Cu/In ratio of the nanoparticles and the yield of the synthesis on the synthesis parameters. The influence of different parameters like (a) the ratio of metal cations to BH 4-anions, (b) the Cu 2+ /In 3+ cation ratio within the precursor solution and (c) the dropping rate of the copper-indium precursor solution are discussed. The Cu/In ratio within the nanoparticles can mainly be controlled by the Cu 2+ /In 3+ cation ratio and the dropping rate of the copper-indium precursor solution. The yield of the synthesis shows saturation behaviour depending on the ratio of metal cations to BH 4-anions. Shape and size of the nanoparticles are independent of the varied parameters.

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Section: Introductionmentioning

confidence: 99%

“…Efficiencies of cells processed by this route range from 1.43% [3] to 7% [4]. However, for CISe thin-film solar cells the ratio of elements within the absorber layer is a critical point.…”

Section: Introductionmentioning

confidence: 99%

Optimising The Parameters For The Synthesis Of Cuin-Nanoparticles By Chemical Reduction Method For Chalcopyrite Thin Film Precursors

et al. 2013

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“…The NaBH 4 -assisted chemical reduction method has been utilized to synthesize nanosized metals effectively [15,16]. Cu-In alloys have been synthesized via NaBH 4 -assisted chemical reduction method [17,18]. It is worth mentioning that the study concerning the selenization reaction of CuInSe 2 films employing Cu-In alloys has not yet been investigated in detail.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of CuInSe2 films via selenizing the Cu–In alloy-containing nanopowders

Liu

Chen

2012

Journal of Alloys and Compounds

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“…The inks were prepared by dissolving Cu-In metal nanoparticles and PVP (k = 30) in ethanol, then were drop-coated on silicon and glass to fabricate precursor films. The Cu/In ratio of precursor films was approximately 1.1:1 [21,22].…”

Section: Methodsmentioning

confidence: 99%

“…In our work, Cu-In metal precursor films have been prepared by a simple non-vacuum method according to our previous reported work [21,22]. We have also reported on the preparation of CuInS 2 thin films and devices using Cu-In metal inks sulphurised in elemental sulfur.…”

Section: Introductionmentioning

confidence: 99%

Study of sulphidation of Cu–In nanoparticle precursor films with an air-stable process

Chang

Wang

Sheng

et al. 2011

J Mater Sci: Mater Electron

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The large-grained and high crystalline CuInS 2 films were prepared based on a metal-nanoparticle ink method, assisted by an air heat treatment (air-stable) process. Cu-In nanoparticles were firstly prepared in polyol by a simple chemical reducing method. And then, Cu-In nanoparticles, polyvinyl pyrrolidone, and alcohol were used to compose inks, which were drop-coated onto substrates to form precursor films. Moreover, Cu-In nanoparticle precursor films were sulphurised to form CuInS 2 films in H 2 S atmosphere at different temperatures. An additional air-heat treatment (air-stable process) was also introduced before sulphurising to improve quality of the prepared CuInS 2 films. At first, grain sizes of prepared CuInS 2 were very small. And then, grain sizes of prepared CuInS 2 grew largely by sulphurising Cu-In nanoparticle precursor films with an air-stable process. Finally, XRD, Raman measurement, transmittance, absorbance spectra and Hall Effect were adopted to identify the films. The results show that the air-stable process is feasible to improve the CuInS 2 films prepared by solution-based deposition techniques.

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Cu–In intermetallic compound inks for CuInS2 solar cells

Cited by 10 publications

References 31 publications

Optimising The Parameters For The Synthesis Of Cuin-Nanoparticles By Chemical Reduction Method For Chalcopyrite Thin Film Precursors

Optimising The Parameters For The Synthesis Of Cuin-Nanoparticles By Chemical Reduction Method For Chalcopyrite Thin Film Precursors

Synthesis of CuInSe2 films via selenizing the Cu–In alloy-containing nanopowders

Study of sulphidation of Cu–In nanoparticle precursor films with an air-stable process

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