Fabrication and characterization of cuprous oxide: fullerene solar cells

• Published in: Synthetic metals Vol. 160; no. 11; pp. 1219 - 1222
• Main Authors: Motoyoshi, Ryosuke, Oku, Takeo, Suzuki, Atsushi, Kikuchi, Kenji, Kikuchi, Shiomi, Jeyadevan, Balachandran, Cuya, Jhon
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.06.2010; Elsevier
• Subjects: Applied sciences; Buckminsterfullerene; Bulk heterojunction solar cells; Compound structure devices; COPPER OXIDE; CUPROUS OXIDE; CURRENT DENSITY; DENSITY; Devices; ELECTRONIC PRODUCTS; Electronics; Energy; Exact sciences and technology; FABRICATION; Fullerene; Fullerenes; Indium tin oxide; INTERFACES; Microstructure; MICROSTRUCTURES; Natural energy; Optoelectronic devices; OXIDES; Photovoltaic cells; Photovoltaic conversion; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; SOLAR CELLS; Solar cells. Photoelectrochemical cells; Solar energy; Spin-coating method; Fullerene; Bulk heterojunction solar cells; Cuprous oxide; Spin-coating method; Performance evaluation; Short circuit currents; Active layer; X ray diffraction; Indium oxide; Open circuit voltage; Photovoltaic cell; Solar cell; Transmission electron microscopy; Tin addition; Spin-on coatings; Optoelectronic device; Fullerenes; Illumination; Microstructure; Copper oxide; Heterojunction
• ISSN: 0379-6779; 1879-3290
• DOI: 10.1016/j.synthmet.2010.03.012

Cuprous oxide (Cu 2O)-based solar cells with fullerene (C 60) were fabricated on indium tin oxide (ITO) by a spin-coating method. The microstructure and cell performance of the solar cells with the Cu 2O:C 60 structure was investigated. A photovoltaic device based on an ITO/Cu 2O:C 60 bulk heterojunction structure fabricated by the spin-coating method provided short-circuit current density of 0.11 mA cm −2 and open-circuit voltage of 0.17 V under an Air Mass 1.5 illumination. The microstructures of the Cu 2O active layer were examined by using X-ray diffraction and transmission electron microscopy. The energy levels of the present solar cells are also discussed.