Interfacial energy level alignments between low-band-gap polymer PTB7 and indium zinc oxide anode

Dongguen Shin, Jeihyun Lee, Soohyung Park, Junkyeong Jeong, Ki Won Seo, Hyo Joong Kim, Han Ki Kim, Min Jun Choi, Kwun Bum Chung, Yeonjin Yi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The interfacial energy level alignments between poly(thieno[3,4-b]-thiophene)-co-benzodithiophene (PTB7) and indium zinc oxide (IZO) were investigated. In situ ultraviolet photoemission spectroscopy measurements were conducted with the step-by-step deposition of PTB7 on IZO substrate. All spectral changes were analyzed between each deposition step, and interfacial energy level alignments were estimated. The hole barrier of standard ultraviolet-ozone treated IZO is 0.58 eV, which is lower than the value of 1.09 eV obtained for bare IZO. The effect of barrier reduction on the hole transport was also confirmed with electrical measurements of hole-dominated devices.

Original languageEnglish
Article number095701
JournalApplied Physics Express
Volume8
Issue number9
DOIs
Publication statusPublished - 2015 Sep 1

Fingerprint

interfacial energy
Zinc oxide
Interfacial energy
zinc oxides
indium oxides
Indium
Electron energy levels
Anodes
Energy gap
anodes
energy levels
alignment
polymers
Polymers
Thiophene
Photoelectron spectroscopy
thiophenes
Ultraviolet spectroscopy
Ozone
electrical measurement

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Shin, Dongguen ; Lee, Jeihyun ; Park, Soohyung ; Jeong, Junkyeong ; Seo, Ki Won ; Kim, Hyo Joong ; Kim, Han Ki ; Choi, Min Jun ; Chung, Kwun Bum ; Yi, Yeonjin. / Interfacial energy level alignments between low-band-gap polymer PTB7 and indium zinc oxide anode. In: Applied Physics Express. 2015 ; Vol. 8, No. 9.
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abstract = "The interfacial energy level alignments between poly(thieno[3,4-b]-thiophene)-co-benzodithiophene (PTB7) and indium zinc oxide (IZO) were investigated. In situ ultraviolet photoemission spectroscopy measurements were conducted with the step-by-step deposition of PTB7 on IZO substrate. All spectral changes were analyzed between each deposition step, and interfacial energy level alignments were estimated. The hole barrier of standard ultraviolet-ozone treated IZO is 0.58 eV, which is lower than the value of 1.09 eV obtained for bare IZO. The effect of barrier reduction on the hole transport was also confirmed with electrical measurements of hole-dominated devices.",
author = "Dongguen Shin and Jeihyun Lee and Soohyung Park and Junkyeong Jeong and Seo, {Ki Won} and Kim, {Hyo Joong} and Kim, {Han Ki} and Choi, {Min Jun} and Chung, {Kwun Bum} and Yeonjin Yi",
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Shin, D, Lee, J, Park, S, Jeong, J, Seo, KW, Kim, HJ, Kim, HK, Choi, MJ, Chung, KB & Yi, Y 2015, 'Interfacial energy level alignments between low-band-gap polymer PTB7 and indium zinc oxide anode', Applied Physics Express, vol. 8, no. 9, 095701. https://doi.org/10.7567/APEX.8.095701

Interfacial energy level alignments between low-band-gap polymer PTB7 and indium zinc oxide anode. / Shin, Dongguen; Lee, Jeihyun; Park, Soohyung; Jeong, Junkyeong; Seo, Ki Won; Kim, Hyo Joong; Kim, Han Ki; Choi, Min Jun; Chung, Kwun Bum; Yi, Yeonjin.

In: Applied Physics Express, Vol. 8, No. 9, 095701, 01.09.2015.

Research output: Contribution to journalArticle

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AU - Shin, Dongguen

AU - Lee, Jeihyun

AU - Park, Soohyung

AU - Jeong, Junkyeong

AU - Seo, Ki Won

AU - Kim, Hyo Joong

AU - Kim, Han Ki

AU - Choi, Min Jun

AU - Chung, Kwun Bum

AU - Yi, Yeonjin

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