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Author

Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab (ATOMS)
Research Interests
  • Optoelectronic materials synthesis/organic electronics, functionalization of carbonaceous solids, advanced materials chemistry, macromolecular chemistry

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Ambipolar organic phototransistors based on 6,6'-dibromoindigo

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Title
Ambipolar organic phototransistors based on 6,6'-dibromoindigo
Author
Kim, HyoeunKim, GyoungsikSong, InhoLee, JunghoAbdullah, HanumYang, ChangdukOh, Joon Hak
Issue Date
2018
Publisher
ROYAL SOC CHEMISTRY
Citation
RSC ADVANCES, v.8, no.27, pp.14747 - 14752
Abstract
Ambipolar organic phototransistors were fabricated using a natural pigment 6,6-dibromoindigo (6-BrIG) as the active channel. These phototransistors yielded significantly enhanced currents upon light illumination with photoresponsivities and external quantum efficiencies as high as 10.3 A W-1 and 2437% for the n-channel, and 55.4 mA W-1 and 13.1% for the p-channel, respectively. In addition, simple inverter complementary circuits were fabricated by integrating two ambipolar phototransistors. Channel current was dependent on light intensity and voltage bias. This study provides a basis for an in-depth understanding of the optoelectronic characteristics of 6-BrIG, and introduces this material as an ecofriendly candidate for optoelectronic applications.
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DOI
http://dx.doi.org/10.1039/c8ra02346h
ISSN
2046-2069
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ECHE_Journal Papers
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