publication . Article . 2018

Enhanced external quantum efficiency from Cu2ZnSn(S,Se)4 solar cells prepared from nanoparticle inks

Qu, Yongtao; Zoppi, Guillaume; Peter, Laurence; Beattie, Neil; Jourdain, Sophie;
Open Access
  • Published: 01 Aug 2018 Journal: Japanese Journal of Applied Physics, volume 57, page 08RC01 (issn: 0021-4922, eissn: 1347-4065, Copyright policy)
  • Publisher: Japan Society of Applied Physics
  • Country: United Kingdom
Abstract
Cu2ZnSn(S,Se)4 (CZTSSe) thin film photovoltaic absorber layers are fabricated by selenizing Cu2ZnSnS4 (CZTS) nanoparticle thin films in a selenium rich atmosphere. The selenium vapor pressure is controlled to optimize the morphology and quality of the CZTSSe thin film. The largest grains are formed at the highest selenium vapor pressure of 226mbar. Integrating this photovoltaic absorber layer in a conventional thin film solar cell structure yields a champion short circuit current of 37.9mA/cm2 without an antireflection coating. This stems from an improved external quantum efficiency characteristic in the visible and near-infrared part of the solar spectrum. The ...
Subjects
Medical Subject Headings: food and beverages
free text keywords: General Engineering, General Physics and Astronomy, Analytical chemistry, CZTS, chemistry.chemical_compound, chemistry, Physics, Optoelectronics, business.industry, business, Thin film, Coating, engineering.material, engineering, Quantum efficiency, Nanoparticle, Vapor pressure, Short circuit, Photovoltaic system, H600, J500
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