Spray deposited copper zinc tin sulphide (Cu2ZnSnS4) film as a counter electrode in dye sensitized solar cells

Sanjay Kumar Swami; Neha Chaturvedi; Anuj Kumar; Nikhil Chander; Viresh Dutta; D. Kishore Kumar; A. Ivaturi; S. Senthilarasu; Hari M. Upadhyaya

doi:10.1039/c4cp03312d

Spray deposited copper zinc tin sulphide (Cu²ZnSnS⁴) film as a counter electrode in dye sensitized solar cells

Sanjay Kumar Swami^*, Neha Chaturvedi, Anuj Kumar, Nikhil Chander, Viresh Dutta, D. Kishore Kumar, A. Ivaturi, S. Senthilarasu, Hari M. Upadhyaya

^*Corresponding author for this work

Indian Institute of Technology Delhi

Research output: Contribution to journal › Article › peer-review

67 Citations (Scopus)

Abstract

Stoichiometric thin films of Cu₂ZnSnS₄ (CZTS) were deposited by the spray technique on a FTO coated glass substrate, with post-annealing in a H₂S environment to improve the film properties. CZTS films were used as a counter electrode (CE) in Dye-Sensitized Solar Cells (DSCs) with N719 dye and an iodine electrolyte. The DSC of 0.25 cm² area using a CE of CZTS film annealed in a H2S environment under AM 1.5G illumination (100 mW cm^-2) exhibited a short circuit current density (J_SC) = 18.63 mA cm^-2, an open circuit voltage (V_OC) = 0.65 V and a fill factor (FF) = 0.53, resulting in an overall power conversion efficiency (PCE) = 6.4%. While the DSC using as deposited CZTS film as a CE showed the PCE = 3.7% with J_SC = 13.38 mA cm^-2, V_OC = 0.57 V and FF = 0.48. Thus, the spray deposited CZTS films can play an important role as a CE in the large area DSC fabrication.

Original language	English
Pages (from-to)	23993-23999
Number of pages	7
Journal	Physical Chemistry Chemical Physics
Volume	16
Issue number	43
Early online date	6 Oct 2014
DOIs	https://doi.org/10.1039/c4cp03312d
Publication status	Published - 21 Nov 2014

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Physics and Astronomy(all)

Access to Document

10.1039/c4cp03312d

Cite this

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title = "Spray deposited copper zinc tin sulphide (Cu2ZnSnS4) film as a counter electrode in dye sensitized solar cells",

abstract = "Stoichiometric thin films of Cu2ZnSnS4 (CZTS) were deposited by the spray technique on a FTO coated glass substrate, with post-annealing in a H2S environment to improve the film properties. CZTS films were used as a counter electrode (CE) in Dye-Sensitized Solar Cells (DSCs) with N719 dye and an iodine electrolyte. The DSC of 0.25 cm2 area using a CE of CZTS film annealed in a H2S environment under AM 1.5G illumination (100 mW cm-2) exhibited a short circuit current density (JSC) = 18.63 mA cm-2, an open circuit voltage (VOC) = 0.65 V and a fill factor (FF) = 0.53, resulting in an overall power conversion efficiency (PCE) = 6.4%. While the DSC using as deposited CZTS film as a CE showed the PCE = 3.7% with JSC = 13.38 mA cm-2, VOC = 0.57 V and FF = 0.48. Thus, the spray deposited CZTS films can play an important role as a CE in the large area DSC fabrication.",

author = "Swami, {Sanjay Kumar} and Neha Chaturvedi and Anuj Kumar and Nikhil Chander and Viresh Dutta and Kumar, {D. Kishore} and A. Ivaturi and S. Senthilarasu and Upadhyaya, {Hari M.}",

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T1 - Spray deposited copper zinc tin sulphide (Cu2ZnSnS4) film as a counter electrode in dye sensitized solar cells

AU - Swami, Sanjay Kumar

AU - Chaturvedi, Neha

AU - Kumar, Anuj

AU - Chander, Nikhil

AU - Dutta, Viresh

AU - Kumar, D. Kishore

AU - Ivaturi, A.

AU - Senthilarasu, S.

AU - Upadhyaya, Hari M.

PY - 2014/11/21

Y1 - 2014/11/21

N2 - Stoichiometric thin films of Cu2ZnSnS4 (CZTS) were deposited by the spray technique on a FTO coated glass substrate, with post-annealing in a H2S environment to improve the film properties. CZTS films were used as a counter electrode (CE) in Dye-Sensitized Solar Cells (DSCs) with N719 dye and an iodine electrolyte. The DSC of 0.25 cm2 area using a CE of CZTS film annealed in a H2S environment under AM 1.5G illumination (100 mW cm-2) exhibited a short circuit current density (JSC) = 18.63 mA cm-2, an open circuit voltage (VOC) = 0.65 V and a fill factor (FF) = 0.53, resulting in an overall power conversion efficiency (PCE) = 6.4%. While the DSC using as deposited CZTS film as a CE showed the PCE = 3.7% with JSC = 13.38 mA cm-2, VOC = 0.57 V and FF = 0.48. Thus, the spray deposited CZTS films can play an important role as a CE in the large area DSC fabrication.

AB - Stoichiometric thin films of Cu2ZnSnS4 (CZTS) were deposited by the spray technique on a FTO coated glass substrate, with post-annealing in a H2S environment to improve the film properties. CZTS films were used as a counter electrode (CE) in Dye-Sensitized Solar Cells (DSCs) with N719 dye and an iodine electrolyte. The DSC of 0.25 cm2 area using a CE of CZTS film annealed in a H2S environment under AM 1.5G illumination (100 mW cm-2) exhibited a short circuit current density (JSC) = 18.63 mA cm-2, an open circuit voltage (VOC) = 0.65 V and a fill factor (FF) = 0.53, resulting in an overall power conversion efficiency (PCE) = 6.4%. While the DSC using as deposited CZTS film as a CE showed the PCE = 3.7% with JSC = 13.38 mA cm-2, VOC = 0.57 V and FF = 0.48. Thus, the spray deposited CZTS films can play an important role as a CE in the large area DSC fabrication.

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DO - 10.1039/c4cp03312d

M3 - Article

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VL - 16

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EP - 23999

JO - Physical Chemistry Chemical Physics

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