Amorphous Cu–In–S Nanoparticles as Precursors for CuInSe<sub>2</sub> Thin‐Film Solar Cells with a High Efficiency

Ahn, SeJin; Choi, Yoo Jeong; Kim, Kyunhwan; Eo, Young-Joo; Cho, Ara; Gwak, Jihye; Yun, Jae Ho; Shin, Keeshik; Ahn, Seoung Kyu; Yoon, Kwon Ha

doi:10.1002/cssc.201200894

Cited by 24 publications

(32 citation statements)

References 33 publications

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“…a) Cross‐section SEM image of CISe device with an unreacted impurity rich bottom layer fabricated from Cu–In–S/MEA/MeOH colloids. [ 227 ] b) Auger electron spectroscopy (AES) depth profile of the selenized absorber layer shows the composition of the bottom layer to be carbonaceous (20 atm%). [ 227 ] Nonetheless, 7.9% efficient CISe devices were obtained (KIST).…”

Section: Nanoparticle Routesmentioning

confidence: 99%

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Present Status of Solution‐Processing Routes for Cu(In,Ga)(S,Se)₂ Solar Cell Absorbers

Suresh

Uhl

2021

Advanced Energy Materials

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Photovoltaic technologies offer a sustainable solution to the challenge of meeting increasing energy demands. Chalcopyrite Cu(In,Ga)(S,Se)2, short CIGS—thin‐film solar cells—having intrinsically p‐type absorbers with a tunable direct bandgap—exhibits one of the highest stabilized power conversion efficiencies of 23.35%, utilizing absorbers typically fabricated via vacuum deposition methods. Research is increasingly devoted to absorbers deposited by solution processing techniques, which may inherently improve material usage, increase throughput, and lower financial barriers to commercialization. However, the performance of current devices with solution‐processed absorbers is still falling short of their vacuum‐processed counterparts with record power conversion efficiencies up to 18.7% reported to date. While hydrazine solvent‐based routes offer reduced residual impurities, their toxicity poses hindrances to widespread adoption. Alternatively, less toxic and environmentally friendly routes based on protic and aprotic solvents are being researched and are showing promising device efficiencies well above 14%. This review describes the current status of CIGS solar cell absorber layers fabricated by pure solution‐based deposition methods, provides a comparison of champion solution‐processed devices (with and without hydrazine), and offers an outlook for future improvements.

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Section: Nanoparticle Routesmentioning

confidence: 99%

“…[ 227 ] b) Auger electron spectroscopy (AES) depth profile of the selenized absorber layer shows the composition of the bottom layer to be carbonaceous (20 atm%). [ 227 ] Nonetheless, 7.9% efficient CISe devices were obtained (KIST). [ 227 ] Reproduced with permission.…”

Section: Nanoparticle Routesmentioning

confidence: 99%

Present Status of Solution‐Processing Routes for Cu(In,Ga)(S,Se)₂ Solar Cell Absorbers

Suresh

Uhl

2021

Advanced Energy Materials

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“…Recently, they demonstrated devices with efficiencies of up to 7.9% from modied amorphous nanoparticles. 123…”

Section: Deposition From Particulate-based Solutionsmentioning

confidence: 99%

Towards low-cost, environmentally friendly printed chalcopyrite and kesterite solar cells

Azimi¹,

Hou²,

Brabec³

2014

Energy Environ. Sci.

191

160

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Solution-processed organic and inorganic semiconductors offer a promising path towards low-cost mass production of solar cells. Among the various material systems, solution processing of multicomponent inorganic semiconductors offers considerable promise due to their excellent electronic properties and superior photo-and thermal stability. This review surveys the recent developments of "all solutionprocessed" copper-indium (-gallium)-chalcogenide (CuInS 2 , CuInSe 2 and Cu(In, Ga)(Se, S) 2) chalcopyrites and copper-zinc-tin-chalcogenide (Cu 2 ZnSnS 4 and Cu 2 ZnSnSe 4 (CZTS(e))) kesterite solar cells. A brief overview further addresses some of the most critical material aspects and associated loss mechanisms in chalcopyrite and kesterite devices. Today's state-of-the-art performance as well as future challenges to achieve low-cost and environmentally friendly production is discussed. Broader context Photovoltaics as the only truly portable renewable-energy conversion technology available today demonstrate strong commercial growth and hold promise for signicant market opportunities. Among various solar cell technologies, thin-lm technologies are one of the cost-competitive solar technologies due to reduced material and fabrication costs. However, the production of thin lm solar cells typically relies on capex intense vacuum-based techniques, and/or hightemperature processes, both increasing manufacturing costs. Solution processing of multicomponent inorganic solar cells is considered as a promising alternative fabrication route to the conventional high cost vacuum techniques.

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“…Organic binders, viscosifiers or both are often employed to obtain suitable rheological properties for coating. A challenge is that the incomplete decomposition of the organic content leads to carbon residue in the absorber film and results in shunt or recombination centres 19–24. Hydrazine‐based CIS inks are an exception, as they have low carbon content and high efficiency 25–30.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a CuInS₂ Nanoparticle Ink and Application in a Selenization‐Free, Solution‐Processed Superstrate Solar Cell

et al. 2015

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We report a study on chalcopyrite solar cells fabricated by low-cost, nonvacuum, and selenization-free methods. Superstrate-type CuInS 2 (CIS) thin-film solar cells were prepared by sequential ink deposition. The CIS film was formed from a stable low-carbon ink, which was synthesized at low temperature (Ͻ120°C). The CIS nanoparticle ink was prepared with n-butylamine and acetic acid as the solvent and stabilizer, respectively. The viscous and stable ink that formed through the dispersion of the final nanoparticles in N,N-dimethylformamide (DMF) could be deposited readily onto the substrate. The major features of the obtained ink are the small amount of impurity phases and negligible carbon residue (ca. 2.8 %). The obtained ink was used for the fabrication of superstrate solar-cell devices with a glass/FTO/TiO 2 /In 2 S 3 /[a]

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Amorphous Cu–In–S Nanoparticles as Precursors for CuInSe₂ Thin‐Film Solar Cells with a High Efficiency

Cited by 24 publications

References 33 publications

Present Status of Solution‐Processing Routes for Cu(In,Ga)(S,Se)₂ Solar Cell Absorbers

Present Status of Solution‐Processing Routes for Cu(In,Ga)(S,Se)₂ Solar Cell Absorbers

Towards low-cost, environmentally friendly printed chalcopyrite and kesterite solar cells

Preparation of a CuInS₂ Nanoparticle Ink and Application in a Selenization‐Free, Solution‐Processed Superstrate Solar Cell

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Amorphous Cu–In–S Nanoparticles as Precursors for CuInSe2 Thin‐Film Solar Cells with a High Efficiency

Cited by 24 publications

References 33 publications

Present Status of Solution‐Processing Routes for Cu(In,Ga)(S,Se)2 Solar Cell Absorbers

Present Status of Solution‐Processing Routes for Cu(In,Ga)(S,Se)2 Solar Cell Absorbers

Towards low-cost, environmentally friendly printed chalcopyrite and kesterite solar cells

Preparation of a CuInS2 Nanoparticle Ink and Application in a Selenization‐Free, Solution‐Processed Superstrate Solar Cell

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Product

Resources

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Amorphous Cu–In–S Nanoparticles as Precursors for CuInSe₂ Thin‐Film Solar Cells with a High Efficiency

Present Status of Solution‐Processing Routes for Cu(In,Ga)(S,Se)₂ Solar Cell Absorbers

Present Status of Solution‐Processing Routes for Cu(In,Ga)(S,Se)₂ Solar Cell Absorbers

Preparation of a CuInS₂ Nanoparticle Ink and Application in a Selenization‐Free, Solution‐Processed Superstrate Solar Cell