Crystal quality studies of CuInS2 films prepared by spray pyrolysis

Oja, I.; Nanu, M.; Katerski, Atanas; Krunks, Malle; Mere, Arvo; Raudoja, J.; Goossens, Albert

doi:10.1016/j.tsf.2004.11.013

Cited by 110 publications

(72 citation statements)

References 21 publications

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“…Owing to its potential for large-scale application on an industrial scale, spray deposition of CuInS 2 finds increasing interest [31][32][33][34][35][36][37] and has become an important research topic in our group [38][39][40][41][42].…”

Section: Spray-deposited Solar Cellsmentioning

confidence: 99%

Spray-deposited CuInS₂solar cells

Goossens

Hofhuis

2008

Nanotechnology

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Spray deposition of CuInS 2 offers an attractive route towards industrial production of thin-film solar cells. With spray deposition it is possible to make nanocomposites of n-type TiO 2 and p-type CuInS 2 . Upon application of an In 2 S 3 buffer layer, solar cells can be made with efficiencies of ∼7%, being comparable to that of amorphous silicon. Rapid thermal annealing is not involved in the production of these solar cells. In order to further improve the performance, the concentration of electronic defect states in the bandgap must be reduced. Towards this end a detailed study has been undertaken to elucidate the role of associated point defects in the recombination of electron-hole pairs. Especially with transient absorption spectroscopy it is possible to make an accurate assessment of the fundamental electronic processes that are involved. We find electronic states in the bandgap related to the presence of anti-site defects. In addition, indium vacancies are also involved. State-to-state recombination occurs, indicating that the involved defects are associated. An electronic state located at 1.1 eV above the valence band, which is related to indium on a copper position, has a lifetime of about 20 μs at room temperature. The lower lying states related to copper on indium positions, and indium vacancies, are populated from this 1.1 eV state.

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Section: Spray-deposited Solar Cellsmentioning

confidence: 99%

Spray-deposited CuInS₂solar cells

Goossens

Hofhuis

2008

Nanotechnology

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“…Nevertheless, the vacuum equipment that is currently used for state of art technology requires large capital investments. This is the reason why low-cost methods for chalcopyrite films deposition have been extensively studied [4][5][6]. So far, nanoparticle precursors have been one of the most successful alternative routes [7].…”

Section: Introductionmentioning

confidence: 99%

Influence of treatment conditions on chalcopyrite films deposited at atmospheric pressure

Todorov

Oliveira

Carda

et al. 2008

Phys. Status Solidi (c)

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Spin‐coating technique was used to deposit precursor layers for chalcopyrite films of the series CuInX2 and Cu(In,Ga)X2 where X = S or Se or (S,Se). The influence of different parameters of the process, such as solution composition, air pre‐treatment and chalcogenation treatment is discussed with respect to film applicability in photovoltaic devices. Layer morphology, stochiometry and crystalline structure varied widely with the different compositions and treatments. Highly oriented CuInSe2 and Cu(In,Ga)Se2 films were obtained. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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“…[26] Synthesis of CuInS 2 has been achieved via a number of methods, including solidstate reaction, [27] solvothermal synthesis, [28] static hydrothermal synthesis, [29] chemical vapour deposition [22,30,31] and spray pyrolysis. [32] The application of CuInS 2 in photovoltaic devices requires the production of pure, good quality thin films, [24] but the cost of synthesis remains a major drawback for widespread use. [31] Minerals such as chalcopyrite (CuFeS 2 ), bornite (Cu 5 FeS 4 ) and digenite (Cu 9 S 5 ) are structurally related to CuInS 2 , exhibit semiconducting properties, [15,33] and could be used as starting materials.…”

Section: Synthesis Of Cuinsmentioning

confidence: 99%

A Novel Route for the Synthesis of Mesoporous and Low-Thermal Stability Materials by Coupled Dissolution-Reprecipitation Reactions: Mimicking Hydrothermal Mineral Formation

Brugger

McFadden

Lenehan

et al. 2010

Chimia

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Replacement reactions ('pseudomorphism') commonly occur in Nature under a large range of conditions (T 25 to >600 ˚C; P 1 to >5 kbar). Whilst mineral replacement reactions are often assumed to proceed by solid-state diffusion of the metal ions through the mineral, many actually proceed via a coupled dissolution and reprecipitation (CDR) mechanism. In such cases, a starting mineral is dissolved into a fluid and this dissolution is coupled with the precipitation of a replacement phase across the reaction front. In cases where there are close relationships between the crystal structures of the parent and newly formed minerals, the replacement can be topotactic (interface-coupled dissolution and reprecipitation). The kinetics and chemistry of the CDR route are fundamentally different from solid-state diffusion and can be exploited i) for the synthesis of materials that are often difficult to synthesise via traditional methods and ii) to obtain materials with unique properties. This review highlights recent research into the use of CDR for such synthetic challenges. Emphasis has been given to i) the use of CDR to synthesise compounds with relatively low thermal stability such as the thiospinel mineral violarite ((Ni,Fe) 3 S 4 ), ii) preliminary work into use of CDR for the production of roquesite (CuInS 2 ), a potentially important photovoltaic component and, iii) examples where the textures resulting from CDR reactions are controlled by the nature and texture of the parent phase and the reaction conditions; these being the formation of micro-porous gold and three-dimensional ordered arrays of nanozeolite of uniform size and crystallographic orientation.

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Crystal quality studies of CuInS2 films prepared by spray pyrolysis

Cited by 110 publications

References 21 publications

Spray-deposited CuInS₂solar cells

Spray-deposited CuInS₂solar cells

Influence of treatment conditions on chalcopyrite films deposited at atmospheric pressure

A Novel Route for the Synthesis of Mesoporous and Low-Thermal Stability Materials by Coupled Dissolution-Reprecipitation Reactions: Mimicking Hydrothermal Mineral Formation

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Crystal quality studies of CuInS2 films prepared by spray pyrolysis

Cited by 110 publications

References 21 publications

Spray-deposited CuInS2solar cells

Spray-deposited CuInS2solar cells

Influence of treatment conditions on chalcopyrite films deposited at atmospheric pressure

A Novel Route for the Synthesis of Mesoporous and Low-Thermal Stability Materials by Coupled Dissolution-Reprecipitation Reactions: Mimicking Hydrothermal Mineral Formation

Contact Info

Product

Resources

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Spray-deposited CuInS₂solar cells

Spray-deposited CuInS₂solar cells