Performance enhancement in organic-inorganic hybrid photovoltaic cells by adding a carbon-nanostructure interface layer
Journal
Conference Record of the IEEE Photovoltaic Specialists Conference
Pages
000716-000718
Date Issued
2011
Author(s)
Abstract
Inverted photovoltaic configuration overcomes the stability problem in conventional polymer photovoltaic device. However, the charge transport property at the organic-inorganic junctions is one of the important issues affecting the performance of this type of photovoltaic cells. To solve the problem, we deposit a carbon-nanostructure layer, C 60, on the inorganic ZnO-nanorod array surface to be in contact with a polymer blend, poly(3-hexylthiophene):(6,6)-phenyl C 61 butyric acid methyl ester (P3HT:PCBM), forming a ZnO/C 60/P3HT:PCBM/Ag device. In the presence of the C 60 layer, both the short circuit current (J SC) and open circuit voltages (V OC) are improved leading to an enhancement in the power conversion efficiency from 1.3% to 2.1%. The role of the C 60 layer is to assist the exciton separation and transport the electrons to the collecting electrode. © 2011 IEEE.
SDGs
Other Subjects
Array surface; Conventional polymers; Interface layer; Methyl esters; Organic-inorganic; Organic-inorganic hybrid; Performance enhancements; Photovoltaic configuration; Poly (3-hexylthiophene); Power conversion efficiencies; Stability problem; ZnO; Carbon; Conversion efficiency; Nanorods; Open circuit voltage; Photoelectrochemical cells; Photovoltaic cells; Zinc oxide; Photovoltaic effects
Type
conference paper