High-efficiency, Cd-free copper–indium–gallium–diselenide/polymer hybrid solar cells |
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| Authors: | Vignesh Gowrishankar, Christine K. Luscombe, Michael D. McGehee,Jean M.J. Fr chet |
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| Affiliation: | aDepartment of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA;bDepartment of Chemistry, University of California, Berkeley, CA 94720-1460, USA;cDivision of Materials Sciences, Lawrence Berkeley National Laboratory, Berkeley, CA, USA;dDepartment of Materials Science & Engineering, University of Washington, Seattle, WA 98195-2120, USA |
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| Abstract: | ![]()
The use of a semiconducting polymer as a buffer layer replacement for CdS in traditionally all-inorganic copper–indium–gallium–diselenide (CIGS)-based solar cells is reported. The semiconducting polymer used is poly(benzimidazobenzophenanthroline) (BBL), which has physical and electronic properties that facilitate a suitable junction between the CIGS and the top electrode. We report on the fabrication, physical properties and photovoltaic characteristics of such Cd-free organic–inorganic devices, which have 6% power-conversion efficiencies. |
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| Keywords: | Polymer buffer layer Cd free Hybrid BBL CIGS |
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