We attempted surface modification in ZnO nanoparticles (NPs) synthesized by the sol-gel process with polyvinyl pyrrolidone (PVP) applied to bulk-heterojunction polymer solar cells (PSCs) as an electron transport layer (ETL). In general, ZnO NPs have trap sites due to oxygen vacancies which capture electrons and degrade the performance of the PSCs. Devices with six different PVP:Zn ratios (0.615 g, 1.230 g, 1.846 g, 2.460 g, 3.075 g, and 3.690 g) were fabricated for surface modification, and the optimized PVP:Zn ratio (2.460 g) was found for PSCs based on P3HT/PCBM. The power conversion efficiency (PCE) of the fabricated PSCs with PVP-capped ZnO exhibited a significant increase of approximately 21% in PCE and excellent air-stability as compared with the uncapped ZnO-based PSCs.
机构:
Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Tecnol Elect, C Tulipan S-N, Madrid 28933, SpainUniv Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Tecnol Elect, C Tulipan S-N, Madrid 28933, Spain
Del Pozo, G.
Romero, B.
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Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Tecnol Elect, C Tulipan S-N, Madrid 28933, SpainUniv Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Tecnol Elect, C Tulipan S-N, Madrid 28933, Spain
Romero, B.
Arredondo, B.
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Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Tecnol Elect, C Tulipan S-N, Madrid 28933, SpainUniv Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Tecnol Elect, C Tulipan S-N, Madrid 28933, Spain
Arredondo, B.
Gutierrez-Llorente, A.
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Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Tecnol Elect, C Tulipan S-N, Madrid 28933, SpainUniv Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Tecnol Elect, C Tulipan S-N, Madrid 28933, Spain
机构:
Max Planck Inst Polymer Res, Max Planck Res Grp Organ Optoelect, D-55128 Mainz, GermanyMax Planck Inst Polymer Res, Max Planck Res Grp Organ Optoelect, D-55128 Mainz, Germany
Mauer, Ralf
Kastler, Marcel
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Max Planck Inst Polymer Res, Max Planck Res Grp Organ Optoelect, D-55128 Mainz, GermanyMax Planck Inst Polymer Res, Max Planck Res Grp Organ Optoelect, D-55128 Mainz, Germany
Kastler, Marcel
Laquai, Frederic
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Max Planck Inst Polymer Res, Max Planck Res Grp Organ Optoelect, D-55128 Mainz, GermanyMax Planck Inst Polymer Res, Max Planck Res Grp Organ Optoelect, D-55128 Mainz, Germany
机构:
King Fahd Univ Petr & Minerals, Interdisciplinary Res Ctr Adv Mat, Dhahran 31261, Saudi ArabiaUniv Kashmir, Dept Elect & IT, Srinagar 190006, India