Achieving high efficiency Cu2ZnSn(S,Se)4 solar cells by non-toxic aqueous ink: Defect analysis and electrical modeling

Wei, Shih-Yuan; Liao, Yueh-Chun; Hsu, Chia‐Lin; Cai, Chung-Hao; Huang, Wei‐Chih; Huang, Mao-Cheng; Lai, Chih‐Huang

doi:10.1016/j.nanoen.2016.04.059

Cited by 22 publications

(7 citation statements)

References 57 publications

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“…To disclose the effect of front grade on the performance of ACZTSe solar cell, the performance of front Ag-gradient ACZTSe thin film solar cells was simulated by SCAPS software. The material parameters of the simulated ACZTSe devices are listed in Table S3 [ [44][45][46] . The largest bandgap of ACZTSe film was set as 1.15 eV.…”

Section: The Performance Of Front Ag-gradient Acztse Thin Film Solar Cellsmentioning

confidence: 99%

Formation of the front-gradient bandgap in the Ag doped CZTSe thin films and solar cells

Wang

Liu

et al. 2019

Journal of Energy Chemistry

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Section: The Performance Of Front Ag-gradient Acztse Thin Film Solar Cellsmentioning

confidence: 99%

Formation of the front-gradient bandgap in the Ag doped CZTSe thin films and solar cells

Wang

Liu

et al. 2019

Journal of Energy Chemistry

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“…Various methods for the fabrication of CZTSSe thin films have been developed, including quinary sputtering and CZTSSe nanoparticle deposition; , however, the bulk of the literature has focused on a two-step process of depositing pure CZTS or CZTSe films followed by selenization and/or sulfurization at high temperature under toxic atmospheres to form the mixed CZTSSe phase. ,− The deposition of CZTS and CZTSe films can be achieved by the decomposition of molten salts, − reactive sputtering, − electroplating, − vapor deposition, − precursor solution deposition, − and nanoparticle ink sintering. − Of these, nanoparticle routes are among the most promising because of their potential to be inexpensive and scalable, while maintaining superior phase and compositional control when compared to nonsolution-based approaches. Although CZTS nanoparticle routes, including green and scalable syntheses, have been widely reported, ,− reports related to CZTSe nanoparticles are much more scarce. − , CZTSe nanoparticle syntheses typically involve the use of toxic solvents such as hydrazine,<...…”

Section: Introductionmentioning

confidence: 99%

Aqueous Synthesis of Cu₂ZnSnSe₄ Nanocrystals

Ritchie

Chesman

Jasieniak³

et al. 2019

Chem. Mater.

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Copper zinc tin selenide (CZTSe) nanocrystal inks show promise as a candidate for developing cheap, scalable, efficient, and nontoxic photovoltaic devices. They also present an important opportunity to controllably mix copper zinc tin sulfide (CZTS) with CZTSe to produce directly spectrally tunable Cu 2 ZnSn(S/Se) 4 (CZTSSe) solid-solutions using low-temperature processes. Herein, we describe a one-pot, low-temperature, aqueous-based synthesis that employs simultaneous redox and crystal formation reactions to yield CZTSe nanocrystal inks stabilized by Sn 2 Se 7 6− and thiourea. This versatile CZTSe synthesis is understood through the use of inductively coupled plasma mass spectrometry, Raman spectroscopy, Fourier transform infrared spectroscopy, and powder X-ray diffraction. It is further shown that stoichiometrically mixed CZTSe and CZTS nanocrystal powders yield a single CZTSSe phase at annealing temperatures between 200 and 250 °C. This facile and low-temperature process offers a low-energy alternative for the deposition of pure CZTSe/SSe thin films and enables the band gap to be readily tuned from 1.5 down to 1.0 eV by simple solution chemistry.

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“…For example, when CuInS 2 is alloyed with the wide-gap semiconductor ZnS in varying ratios, a series of quaternary (CuInS 2 ) 1– x (ZnS) x alloys having composition-dependent band gaps are produced . The ZnS-rich compositions have been shown to absorb visible photons more effectively than the unalloyed CuInS 2 , and they have been successfully utilized in visible light-induced photocatalysis. , Meanwhile, improved solar cell conversion efficiencies have been reported when Cu 2 ZnSnS 4 is alloyed with its Ge (Cu 2 ZnGeS 4 ) and Se (Cu 2 ZnSnSe 4 ) counterparts to form the quinary compounds Cu 2 ZnSn 1– x Ge x S 4 and Cu 2 ZnSn(S 1– x Se x ) 4 , respectively. − CMS compounds are also known to possess crystallographically diverse structures. In the case of CuInS 2 , it has three known polymorphic forms: chalcopyrite, zinc-blende, and wurtzite structures .…”

Section: Introductionmentioning

confidence: 99%

Tailoring Porosity in Copper-Based Multinary Sulfide Nanostructures for Energy, Biomedical, Catalytic, and Sensing Applications

Regulacio

Wang

Seh

et al. 2018

ACS Appl. Nano Mater.

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Copper-based multinary sulfides (CMSs) have been the subject of intense research over the past decade due to the numerous outstanding properties that emerge when they are synthesized on the nanoscale. CMS compounds (e.g., CuInS 2 , Cu 2 SnS 3 , Cu 12 Sb 4 S 13 , and Cu 2 ZnSnS 4 ) are best known for their immense potential in energy-related disciplines. Through nanoscale engineering, new and exciting opportunities have opened up for these materials to be used in a wider range of applications. This review accords particular attention to nanostructured CMS materials with porous morphological features to be used in energy, biomedical, catalytic, and sensing applications owing to their large, tunable, and accessible surface area. Although the construction of porous nanostructures of metals and binary materials has already been well established, tailoring porosity in multinary materials like CMSs remains a big challenge due to their multiple elemental components. Herein, we provide useful discussions on the different modes of pore formation that are fundamental to the construction of CMS nanostructures with tailor-made porosity. These pore-forming strategies are classified into three types: (1) Kirkendall effectinduced hollowing, (2) aggregation-based pore formation, and (3) template-assisted pore engineering. The ability to craft porous features in CMS nanomaterials has proven to be beneficial in advancing their properties and expanding their application domains, and thus, future efforts should be devoted to furthering our understanding of the various pore formation mechanisms as this could lead to the construction of more sophisticated porous CMS architectures with optimal performance for desired applications. We anticipate that the design concepts discussed here can be extended to other emerging classes of multinary materials.

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Achieving high efficiency Cu2ZnSn(S,Se)4 solar cells by non-toxic aqueous ink: Defect analysis and electrical modeling

Cited by 22 publications

References 57 publications

Formation of the front-gradient bandgap in the Ag doped CZTSe thin films and solar cells

Formation of the front-gradient bandgap in the Ag doped CZTSe thin films and solar cells

Aqueous Synthesis of Cu₂ZnSnSe₄ Nanocrystals

Tailoring Porosity in Copper-Based Multinary Sulfide Nanostructures for Energy, Biomedical, Catalytic, and Sensing Applications

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Achieving high efficiency Cu2ZnSn(S,Se)4 solar cells by non-toxic aqueous ink: Defect analysis and electrical modeling

Cited by 22 publications

References 57 publications

Formation of the front-gradient bandgap in the Ag doped CZTSe thin films and solar cells

Formation of the front-gradient bandgap in the Ag doped CZTSe thin films and solar cells

Aqueous Synthesis of Cu2ZnSnSe4 Nanocrystals

Tailoring Porosity in Copper-Based Multinary Sulfide Nanostructures for Energy, Biomedical, Catalytic, and Sensing Applications

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Aqueous Synthesis of Cu₂ZnSnSe₄ Nanocrystals