Influence of Surface Modification with Carboxylic Acids on Performance of Polymer/Titania Photovoltaic Devices
Source: Journal of Electronic Materials, Volume 39, Number 1, January 2010 , pp. 1-7(7)
Abstract:Polymer/titania nanoparticle hybrid bulk heterojunction photovoltaic devices were fabricated, and the influences of nanoparticle content and surface modifiers on the photophysical and photovoltaic properties were investigated by photoluminescence measurements, current–voltage characterization, and intensity-modulated photovoltage spectroscopy. The results revealed that dodecanoic-acid-modified titania yields the best dispersibility in organic solvent and the highest device performance, and that the open-circuit voltage and electron lifetime are strongly dependent on the molecular structure of the modifiers and nanoparticle content. In addition, a longer electron lifetime is accompanied by a higher open-circuit voltage of the device.
Document Type: Research Article
Affiliations: 1: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, P.R. China, Email: firstname.lastname@example.org 2: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, P.R. China 3: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, P.R. China, Email: email@example.com
Publication date: January 1, 2010