10th International Workshop on the Physics of Semiconductor Devices (IWPSD 99), Date: 1999/12/14 - 1999/12/18, Location: INDIA, NEW DELHI

Publication date: 1999-01-01
Volume: 3975 Pages: 1246 - 1249
ISSN: 0-8194-3601-1
Publisher: Society of Photo-optical Instrumentation Engineers

PROCEEDING OF THE TENTH INTERNATIONAL WORKSHOP ON THE PHYSICS OF SEMICONDUCTOR DEVICES, VOLS I AND II

Author:

Geens, Wim
Poortmans, Jef ; Jain, Suresh ; Nijs, Johan ; Mertens, Robert ; Kumar, V ; Agarwal, SK

Keywords:

Science & Technology, Technology, Physical Sciences, Materials Science, Multidisciplinary, Optics, Physics, Applied, Physics, Condensed Matter, Materials Science, Physics, 4006 Communications engineering, 4009 Electronics, sensors and digital hardware, 5102 Atomic, molecular and optical physics

Abstract:

Organic solar cells based on the concept of the donor-acceptor bulk heterojunction have been critically evaluated. Spincast organic layers of the PPV-pentamer 2,5-di-n-octyloxy-1,4-bis(4′,4″-bisstyryl)styryl-benzene (Ooct-OPV5) and C60 were investigated to reveal the shortcomings of this deposition technique. Spectral response measurements on ITO/Ooct-OPV5:C60/Al devices, illuminated IV curves of ITO/Ooct-OPV5:PS:C60/Al devices and the characteristics of FETs based on Ooct-OPV5 pointed out that the following aspects of the organic heterojunction need drastic improvement: layer thickness, structural order and reproducibility. The advantages of vacuum deposition as a technique to solve these problems are discussed.