Magnetophotocurrent effect in organic photovoltaic cells at low temperatures

被引：10
作者：
Tajima, H. [1 ]
Miyakawa, M. [1 ]
Isozaki, H. [1 ]
Yasui, M. [1 ]
Suzuki, N. [1 ]
Matsuda, M. [1 ]
机构：
[1] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan
来源：
SYNTHETIC METALS | 2010年 / 160卷 / 3-4期
基金：
日本学术振兴会;
关键词：
Photovoltaic effect; MIM junctions; Magnetophotocurrent; Magnetic field; Low temperature; ROOM-TEMPERATURE; MAGNETORESISTANCE; DIODES;
D O I：
10.1016/j.synthmet.2009.07.024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The photocurrent responses were investigated for the bulk-hetero-junction of poly(3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-1-phenyl-(6,6)C(61) (PCBM) (1), and the single-active-layer junction of (5,10,15,20-tetraphenyl porphyrinato)zinc (II) (Zn(TPP)) (2), in the temperature range between 300 K and 1.5 K under the magnetic field up to 8 T. Magnetic field effect (MFE) of the photocurrent was observed in both devices. In the device (1), MFE at low temperatures was small for the continuous light illumination, but remarkable for the chopped-light illumination. An experiment of photoinduced charge extraction by linearly increasing voltage (photo-CELIV) revealed a drastic increase in the lifetime for trapped carriers under applied magnetic field. In the device (2), the photocurrent decrease under magnetic field was observed both for the continuous-light and the chopped-light illumination. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：256 / 261
页数：6
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