**Transparent Conducting Polymer/Nitride Semiconductor Heterojunction Solar Cells**

Nobuyuki Matsuki1,3, Yoshitaka Nakano2, Yoshihiro Irokawa1, Mickael Lozac'h1 and Masatomo Sumiya1 *1National Institute for Materials Science, Namiki, Tsukuba, Ibarak, 2Institute of Science and Technology Research, Chubu University, Matsumoto, Kasugai, Aichi,* 

*3Department of Electrical and Electronic Engineering, Faculty of Engineering, Gifu University, Yanagido, Gifu,* 

*Japan* 
