Modulations in line shapes of magnetoconductance curves for diodes of pentacene:fullerene charge transfer complexes

Wei Shun Huang, Zhe Rui Xu, Kuo Cheng Chen, Tzung Fang Guo, J. C.A. Huang, Ten Chin Wen

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This work investigates that the applied electric field modulates the line shapes of magnetoconductance (MC) responses in pentacene:fullerene diodes under illumination. We attribute the line shape of MC curves herein is correlated with the strength of the exchange interaction in pentacene:fullerene charge transfer (CT) complex states. Applying the reversed bias increases the built-in electric field (Ebuilt-in) of the diodes to offset the exchange interaction of CT complex states and narrows the line shapes of MC responses. The saturation field of MC curves in the pentacene:fullerene bulk heterojunction device is 752 Oe when the device is biased at 0.4 V and decreases to 212 Oe at a reversed bias of -1.0 V. The line shape of MC curves for the diode made of pristine pentacene or fullerene as the active layer does not change with the applied bias voltage. Our results indicate the correlations of MC responses with the exchange interaction of CT complexes as modulated by the applied electric field.

Original languageEnglish
Pages (from-to)3076-3081
Number of pages6
JournalOrganic Electronics
Volume15
Issue number11
DOIs
Publication statusPublished - 2014 Nov

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Modulations in line shapes of magnetoconductance curves for diodes of pentacene:fullerene charge transfer complexes'. Together they form a unique fingerprint.

Cite this