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论文类型： 期刊论文

发表时间： 2013-02-01

发表刊物： APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING

收录刊物： SCIE、EI、Scopus

卷号： 110

期号： 2

页面范围： 263-267

ISSN号： 0947-8396

摘要： Two kinds of inorganic/organic hybrid junctions based on ZnO nanorods (NRs), i.e. two-layer planar heterojunction and embedded bulk composite structures, were fabricated on ITO glass substrates. Surface photovoltage (SPV) methods based on a Kelvin probe and a lock-in amplifier were respectively utilized to study the photogenerated charges at the surface and the interface in the ZnO-based hybrid junctions. Results indicate that the lock-in SPV response of the bulk composite structure is much higher than its planar counterpart in terms of intensity and spectral range. Therefore, ZnO NR/PF (poly(9,9-di-n-octylfluorenyl-2,7-diyl)) embedded bulk composite structures are more suitable and preferred for photovoltaic application.