Fabrication of visible‐light transparent solar cells composed of NiO/Ni x Zn 1‐x O/ZnO heterostructures

Autor:	Kazuma Moriyama, Fumika Nakamura, Daisuke Kawade, Shigefusa F. Chichibu, Mutsumi Sugiyama
Rok vydání:	2015
Předmět:	Materials science Band gap business.industry Non-blocking I/O Heterojunction Photovoltaic effect Condensed Matter Physics Band offset law.invention law Sputtering Solar cell Optoelectronics business Visible spectrum
Zdroj:	physica status solidi c. 12:785-788
ISSN:	1610-1642 1862-6351
DOI:	10.1002/pssc.201400256
Popis:	Visible-light transparent solar cells were fabricated using p -type NiO and n -type ZnO by conventional RF reactive sputtering with NiZnO alloy as an intrinsic interlayer. The energy band diagrams of NiO/NiZnO/ZnO heterojunctions were revealed by photoelectron yield spectroscopy, and the band gap energies were estimated to be 1.2 eV for NiO/Ni0.4Zn0.6O and 0.6 eV for Ni0.4Zn0.6O/ZnO heterojunctions. By using In2O3:Sn (ITO) as a transparent electrode in NiO-based visible-light transparent solar cells, a small but noticeable photovoltaic effect was obtained. The short-circuit current density (Jsc) increased from 4 μA/cm2 to 12 μA/cm2 due to the insertion of Ni0.4Zn0.6O interlayer. (© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Databáze:	OpenAIRE
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