The electrical and photoconductivity characteristics of donor-acceptor alternating copolymer using solution process

Shin Woo Jeong, Gi Back Lee, Hyeon Jun Ha, Soon Ki Kwon, Yun Hi Kim, Byeong Kwon Ju

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The authors report on the electrical and photoconductivity characteristics of donor-acceptor alternating copolymer, poly(dioctyloxinapthalenediketopyrrolopyrrole) (PONDPP) with Al/PONDPP/p-Si/Al hybrid organic/inorganic Schottky diode for optoelectronic applications. The fabricated device shows ideality factor value of 2.6 and barrier height of 0.68eV obtained from current-voltage characteristics. The high rectification ratio of 1.86×104 and photo-responsivity of 55mA/W at 650nm is achieved. From results, we found that the fine photo-response and electrical characteristics are attributed to the modified band-gap structure to have Schottky barrier at highest occupied molecular orbital to valence band of silicon and high hole mobility of PONDPP.

Original languageEnglish
Article number243301
JournalApplied Physics Letters
Volume101
Issue number24
DOIs
Publication statusPublished - 2012 Dec 10

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photoconductivity
copolymers
hole mobility
rectification
Schottky diodes
molecular orbitals
valence
electric potential
silicon

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

The electrical and photoconductivity characteristics of donor-acceptor alternating copolymer using solution process. / Woo Jeong, Shin; Back Lee, Gi; Ha, Hyeon Jun; Kwon, Soon Ki; Kim, Yun Hi; Ju, Byeong Kwon.

In: Applied Physics Letters, Vol. 101, No. 24, 243301, 10.12.2012.

Research output: Contribution to journalArticle

Woo Jeong, Shin ; Back Lee, Gi ; Ha, Hyeon Jun ; Kwon, Soon Ki ; Kim, Yun Hi ; Ju, Byeong Kwon. / The electrical and photoconductivity characteristics of donor-acceptor alternating copolymer using solution process. In: Applied Physics Letters. 2012 ; Vol. 101, No. 24.
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