Effects of Sulfurization Pressure on the Conversion Efficiency of Cosputtered Cu2ZnSnS4Thin Film Solar Cells | Zendy

Arun Khalkar | Zendy; KwangSoo Lim | Zendy; Seong-Man Yu | Zendy; DongWook Shin | Zendy; Tae-Sik Oh | Zendy; JiBeom Yoo | Zendy

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Effects of Sulfurization Pressure on the Conversion Efficiency of Cosputtered Cu₂ZnSnS₄Thin Film Solar Cells

Author(s) -

Arun Khalkar,

KwangSoo Lim,

Seong-Man Yu,

DongWook Shin,

Tae-Sik Oh,

JiBeom Yoo

Publication year - 2015

Publication title -

international journal of photoenergy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.426

H-Index - 51

eISSN - 1687-529X

pISSN - 1110-662X

DOI - 10.1155/2015/750846

Subject(s) - czts , materials science , thin film , tin , energy conversion efficiency , atmospheric pressure , zinc , copper , optoelectronics , solar cell , chemical engineering , metallurgy , nanotechnology , geology , oceanography , engineering

We report herein Cu2ZnSnS4 (CZTS) thin film solar cells with 6.75% conversion efficiency, without an antireflection coating. The CZTS precursors have been prepared by cosputtering using three different targets on Mo-coated substrates: copper (Cu), tin sulfide (SnS), and zinc (Zn). The postsulfurization was carried out at different pressures in a H2S/N2 environment at 550°C for one hour. A comparative study on the performances of solar cells with CZTS absorber layers prepared at different sulfurization pressures was carried out. The device efficiency of 1.67% using CZTS absorber and low pressure sulfurization is drastically improved, to an efficiency of 6.75% with atmospheric pressure sulfurization

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