Fabrication of p-type kesterite Ag2ZnSnS4 thin films with a high hole mobility

Ma, Changhao; Guo, Huafei; Zhang, Kezhi; Yuan, Ningyi; Ding, Jianning

doi:10.1016/j.matlet.2016.10.013

Cited by 39 publications

(21 citation statements)

References 11 publications

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“…Additionally, composition‐graded (Cu,Ag) 2 ZnSn(S,Se) 4 alloys provide interesting perspectives in band engineering for boosting the efficiency of kesterite. Following these works, Gershon et al published a 5% efficient FTO/AZTSe/MoO 3 /ITO device, reporting that AZTSe is indeed a n‐type semiconductor, thus agreeing with previous theoretical work, although some recent studies claimed the possibility to obtain p‐type AZTS . It was found that when increasing the Ag content on (Cu 1‐x Ag x ) 2 ZnSn(S,Se) 4 , a compensation effect occurs and reduces the charge carrier density, leading in a change of the conductivity type from p to n for Ag concentrations higher than 50% .…”

Section: Challenges and Perspectives: How To Improve The Kesterite Efsupporting

confidence: 58%

Progress and Perspectives of Thin Film Kesterite Photovoltaic Technology: A Critical Review

et al. 2019

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The latest progress and future perspectives of thin film photovoltaic kesterite technology are reviewed herein. Kesterite is currently the most promising emerging fully inorganic thin film photovoltaic technology based on critical raw-material-free and sustainable solutions. The positioning of kesterites in the frame of the emerging inorganic solar cells is first addressed, and the recent history of this family of materials briefly described. A review of the fast progress achieved earlier this decade is presented, toward the relative slowdown in the recent years partly explained by the large opencircuit voltage (V OC ) deficit recurrently observed even in the best solar cell devices in the literature. Then, through a comparison with the close cousin Cu(In,Ga)Se 2 technology, doping and alloying strategies are proposed as critical for enhancing the conversion efficiency of kesterite. In the second section herein, intrinsic and extrinsic doping, as well as alloying strategies are reviewed, presenting the most relevant and recent results, and proposing possible pathways for future implementation. In the last section, a review on technological applications of kesterite is presented, going beyond conventional photovoltaic devices, and demonstrating their suitability as potential candidates in advanced tandem concepts, photocatalysis, thermoelectric, gas sensing, etc.Kesterite Photovoltaics He has supervised ten Ph.D. theses in the photovoltaic field. He is currently the coordinator of the research and innovation H2020 project STARCELL (www.starcell.eu), and the RISE (Marie Curie) project INFINITE-CELL (www.infinite-cell.eu).the V OC deficit for bandgaps close to 1.0 or 1.5 eV are comparable, and one can consider that kesterite is reasonably close to the state of the art of chalcopyrite materials in that range. But, while for kesterite the V OC deficit increases almost monotonically with the bandgap, it is markedly reduced for intermediate

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Section: Challenges and Perspectives: How To Improve The Kesterite Efsupporting

confidence: 58%

Progress and Perspectives of Thin Film Kesterite Photovoltaic Technology: A Critical Review

et al. 2019

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“…The values of carrier concentrations for all samples are negative, which indicate that the samples are the n-type semiconductors. The results agree well with that reported by Gershon et al [22] and the conduction type of Ag 2 ZnSnS 4 samples [34,35] . Yuan et al [35] systematically investigated the defects formed in the quaternary Cu-based and Ag-based kesterite metal sulfide compounds using density function theory calculations.…”

Section: Resultssupporting

confidence: 93%

Photoelectrochemical performances of kesterite Ag 2 ZnSnSe 4 photoelectrodes in the salt-water and water solutions

Cheng

2017

Journal of the Taiwan Institute of Chemical Engineers

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“…These peaks are assigned to the characteristic modes of the stannite AZTS phase. 33 In addition, the spectrum highlights two extra peaks at 310 and 221 cm À1 corresponding to the phonon modes of the secondary phase Ag 8 SnS 6 34 which confirms the XRD results. No more peaks for SnS 2 (315 cm À1 ) 35 or ZnS (cubic 348 cm À1 and hexagonal 356 cm À1 ) 36 were found.…”

Section: Raman Studiessupporting

confidence: 75%

Cation Substitution of Copper by Silver in the Earth-Abundant Compound Cu2ZnSnS4: Comparative Study of Structural, Morphological, and Optical Properties

Bousselmi

Khémiri

Ahmadi

et al. 2021

Journal of Elec Materi

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Quaternary compound Cu 2 ZnSnS 4 (CZTS) is widely recognized as a promising candidate for use as an absorber layer for photovoltaic applications. However, its efficiency is limited by the high density of antisite defects that shorten the performance of CZTS-based solar cells. Cation substitution of copper by other elements has been proposed as a potential solution in order to control and eliminate the cation disorder within the kesterite structure. In this work, Ag 2 ZnSnS 4 (AZTS) and Cu 2 ZnSnS 4 (CZTS) powders were successfully synthesized by solid state reaction. XRD and Raman measurements were performed to study the crystallographic structures and their lattice vibration spectrum. The results confirmed the presence of the pure phase of CZTS and the stannite phase of AZTS with an occurrence of the secondary phase Ag 8 SnS 6. Morphological properties and the composition analysis of synthesized powders were analyzed by scanning electron microscopy and energy dispersive x-ray analysis. A significant change is noticed in the band gap energy value established by the diffuse reflectance spectroscopy from 1.44 eV for CZTS to 2.55 eV for AZTS. Lastly, measurements with the hot probe method indicate the p-type conductivity of CZTS and the n-type conductivity for AZTS as predicted by theoretical studies. These results highlight that the substitution of silver for copper in CZTS leads to significant changes in the properties of CZTS.

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Fabrication of p-type kesterite Ag2ZnSnS4 thin films with a high hole mobility

Cited by 39 publications

References 11 publications

Progress and Perspectives of Thin Film Kesterite Photovoltaic Technology: A Critical Review

Progress and Perspectives of Thin Film Kesterite Photovoltaic Technology: A Critical Review

Photoelectrochemical performances of kesterite Ag 2 ZnSnSe 4 photoelectrodes in the salt-water and water solutions

Cation Substitution of Copper by Silver in the Earth-Abundant Compound Cu2ZnSnS4: Comparative Study of Structural, Morphological, and Optical Properties

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