Optical properties of self-assembled ZnO nanocrystals embedded in a p-phenylene biphenyltetracarboximide polyimide layer

Fushan Li, Dong Ick Son, Tae Whan Kim, Wenguo Dong, Young Ho Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

ZnO nanocrystals embedded in a p-phenylene biphenyltetracarboximide (BPDA-PDA) polyimide (PI) layer were formed by a thermal curing. Transmission electron microscopy and selected-area electron diffraction measurements showed that the ZnO nanocrystals were formed inside the BPDA-PDA PI layer. An absorption peak corresponding to the optical band gap of ZnO nanocrystals appeared in an ultraviolet-visible absorbance spectrum, and a transmittance spectrum showed that the average optical transmittance in the visible range was approximately 70%. A dominant band corresponding to the green emissions of the ZnO nanocrystals was clearly observed in the photoluminescence (PL) spectra. The green emission mechanism of the ZnO nanocrystals embedded in the BPDA-PDA PI layer is described on the basis of the absorbance and the temperature-dependent PL results.

Original languageEnglish
Pages (from-to)5086-5088
Number of pages3
JournalJapanese Journal of Applied Physics
Volume47
Issue number6 PART 2
DOIs
StatePublished - 2008 Jun 20

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polyimides
Polyimides
Nanocrystals
nanocrystals
Optical properties
Personal digital assistants
optical properties
transmittance
Photoluminescence
photoluminescence
Optical band gaps
Opacity
ultraviolet spectra
curing
visible spectrum
Electron diffraction
Curing
electron diffraction
Transmission electron microscopy
transmission electron microscopy

Keywords

  • Green emission mechanism
  • Optical property
  • Polyimide layer
  • ZnO nanocrystal

Cite this

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title = "Optical properties of self-assembled ZnO nanocrystals embedded in a p-phenylene biphenyltetracarboximide polyimide layer",
abstract = "ZnO nanocrystals embedded in a p-phenylene biphenyltetracarboximide (BPDA-PDA) polyimide (PI) layer were formed by a thermal curing. Transmission electron microscopy and selected-area electron diffraction measurements showed that the ZnO nanocrystals were formed inside the BPDA-PDA PI layer. An absorption peak corresponding to the optical band gap of ZnO nanocrystals appeared in an ultraviolet-visible absorbance spectrum, and a transmittance spectrum showed that the average optical transmittance in the visible range was approximately 70{\%}. A dominant band corresponding to the green emissions of the ZnO nanocrystals was clearly observed in the photoluminescence (PL) spectra. The green emission mechanism of the ZnO nanocrystals embedded in the BPDA-PDA PI layer is described on the basis of the absorbance and the temperature-dependent PL results.",
keywords = "Green emission mechanism, Optical property, Polyimide layer, ZnO nanocrystal",
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Optical properties of self-assembled ZnO nanocrystals embedded in a p-phenylene biphenyltetracarboximide polyimide layer. / Li, Fushan; Son, Dong Ick; Kim, Tae Whan; Dong, Wenguo; Kim, Young Ho.

In: Japanese Journal of Applied Physics, Vol. 47, No. 6 PART 2, 20.06.2008, p. 5086-5088.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Optical properties of self-assembled ZnO nanocrystals embedded in a p-phenylene biphenyltetracarboximide polyimide layer

AU - Li, Fushan

AU - Son, Dong Ick

AU - Kim, Tae Whan

AU - Dong, Wenguo

AU - Kim, Young Ho

PY - 2008/6/20

Y1 - 2008/6/20

N2 - ZnO nanocrystals embedded in a p-phenylene biphenyltetracarboximide (BPDA-PDA) polyimide (PI) layer were formed by a thermal curing. Transmission electron microscopy and selected-area electron diffraction measurements showed that the ZnO nanocrystals were formed inside the BPDA-PDA PI layer. An absorption peak corresponding to the optical band gap of ZnO nanocrystals appeared in an ultraviolet-visible absorbance spectrum, and a transmittance spectrum showed that the average optical transmittance in the visible range was approximately 70%. A dominant band corresponding to the green emissions of the ZnO nanocrystals was clearly observed in the photoluminescence (PL) spectra. The green emission mechanism of the ZnO nanocrystals embedded in the BPDA-PDA PI layer is described on the basis of the absorbance and the temperature-dependent PL results.

AB - ZnO nanocrystals embedded in a p-phenylene biphenyltetracarboximide (BPDA-PDA) polyimide (PI) layer were formed by a thermal curing. Transmission electron microscopy and selected-area electron diffraction measurements showed that the ZnO nanocrystals were formed inside the BPDA-PDA PI layer. An absorption peak corresponding to the optical band gap of ZnO nanocrystals appeared in an ultraviolet-visible absorbance spectrum, and a transmittance spectrum showed that the average optical transmittance in the visible range was approximately 70%. A dominant band corresponding to the green emissions of the ZnO nanocrystals was clearly observed in the photoluminescence (PL) spectra. The green emission mechanism of the ZnO nanocrystals embedded in the BPDA-PDA PI layer is described on the basis of the absorbance and the temperature-dependent PL results.

KW - Green emission mechanism

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