Effect of temperature and magnetic field on the photocurrent response of biomolecular bulk-hetero junction

Hiroyuki Tajima; Yusuke Sekiguchi; Masaki Matsuda

doi:10.1117/12.918704

22 February 2012 Effect of temperature and magnetic field on the photocurrent response of biomolecular bulk-hetero junction

Hiroyuki Tajima, Yusuke Sekiguchi, Masaki Matsuda

Author Affiliations +

Proceedings Volume 8333, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration; 833319 (2012) https://doi.org/10.1117/12.918704
Event: Photonics and Optoelectronics Meetings 2011, 2011, Wuhan, China

Abstract

The photocurrent responses were investigated for the biomolecular bulk-hetero junction of chlorophyll α (Chl-α) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-1-phenyl-(6,6)C₆₁ (PCBM) in the temperature range between 300 K and 1.5 K under the magnetic field up to 8 T. The chopped-light photocurrent decreases on lowering the temperature. Below 10 K, photocurrent decrease was observed under the applied magnetic field. Decay of the photocurrent observed at 10 K was ascribed to the formation of the charged trap under light irradiation. The magnetic field effect (MFE) observed in this device was found to be very similar to that observed in P3HT:PCBM bulk-hetero junction at low temperatures.

Citation Download Citation

Hiroyuki Tajima, Yusuke Sekiguchi, and Masaki Matsuda "Effect of temperature and magnetic field on the photocurrent response of biomolecular bulk-hetero junction", Proc. SPIE 8333, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration, 833319 (22 February 2012); https://doi.org/10.1117/12.918704

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