Charge separation and transport properties of photovoltaic devices based on MEHPPV/TiO2 nanorods hybrid materials
Journal
Proceedings of SPIE - The International Society for Optical Engineering
Journal Volume
6334
ISBN
0819464139
9780819464132
Date Issued
2006
Author(s)
Abstract
Photovoltaic devices based on the conjugated polymer (poly(2-methoxy-5-(2'- ethyl)(hexyloxy)1,4-phenylenevinylene) (MEH-PPV) / TiO2 nanorods hybrid materials are investigated. It is found that efficient charge separation occurs at the interfaces of MEH-PPV/ TiO2 nanorods, accompanying with a significant quench in the photoluminescence (PL) intensity and a decrease of PL lifetime with increasing TiO2 nanorod concentrations. The device based on the MEH-PPV/ TiO2 nanorod hybrid material shows power efficiency about 2.2% at the incident light with a wavelength of 565 nm. The transport properties of the solar cells are further investigated and discussed.
SDGs
Other Subjects
Electron transport properties; Organic polymers; Photoluminescence; Photovoltaic cells; Quenching; Titanium dioxide; Charge separation; Nanorod concentrations; Nanorods; Power efficiency; Nanostructured materials
Type
conference paper