NICT ナノ機能集積プロジェクト:Abstract

Fabrication of Bacteriorhodopsin (bR) Thin Films by Wire-Bar Coating Technique and Evaluation of Transient Photocurrent Response in Its bR Photocells

Toshiki Yamada, Yoshihiro Haruyama, Katsuyuki Kasai, Takahiro Kaji,
Yukihiro Tominari, Shukichi Tanaka, Akira Otomo


Abstract:

 We prepared a bR thin film by the wire-bar coating technique, and investigated the transient photo-current characteristics of the bR photocell. The transient photo-current signal of bR photocells prepared by the wire-bar coating technique and the dip coating technique was compared. An almost identical transient photo-current signal intensity was obtained both for the wire-bar coating technique and dip coating technique, while the thickness of bR thin film prepared by the wire-bar coating technique is slightly thinner than that prepared by the dip-coating technique. Transparent conductive oxide dependence of the transient photo-current signal is almost the same dependence for the bR photocells with a bR thin film prepared by both techniques. Application of the wire-bar coating technique is significant from the viewpoints of the bR's sample consumption as well as simplicity of sample preparation.


doi:10.1587/transele.E100.C.133