A study on the optical and electrical properties of direct-patternable ZnO films incorporated various contents of Pt nanoparticles

Yong June Choi, Seok Joo Wang, Hyuncheol Kim, Kyoung Hoe Koo, Hyung-Ho Park

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Platinum nanoparticles were synthesized by the methanol reduction method, and their size was controlled to 3 nm on average using PVP [poly(N-vinyl-2-pyrrolidon)] as a protecting unit. Various contents of Pt nanoparticles were incorporated into ZnO solutions which were synthesized by a sol-gel process. ZnO films with Pt nanoparticles of various content were annealed at 500 °C and 600 °C for 1 h. The crystallinity increased with the annealing temperature and also slightly with the content of Pt nanoparticles. The sheet resistance of ZnO films decreased with the incorporation of Pt nanoparticles, however the decreasing behavior was not maintained with increasing content of Pt nanoparticles. A shift of valence band maximum energy of ZnO film with Pt nanoparticles to higher energy was also observed due to electron transfer from Pt nanoparticles to ZnO film. The optical transmittance was 88 ± 2% in the visible region for all the ZnO films. Well-defined 60 μm wide direct-patterned ZnO films containing Pt nanoparticles of 0.5 atomic percent could be formed without using dry etching process.

Original languageEnglish
Pages (from-to)1010-1013
Number of pages4
JournalApplied Surface Science
Volume256
Issue number4
DOIs
Publication statusPublished - 2009 Nov 30

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Electric properties
Optical properties
Nanoparticles
Dry etching
Sheet resistance
Opacity
Valence bands
Platinum
Sol-gel process
Methanol
Annealing
Electrons

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films

Cite this

Choi, Yong June ; Wang, Seok Joo ; Kim, Hyuncheol ; Koo, Kyoung Hoe ; Park, Hyung-Ho. / A study on the optical and electrical properties of direct-patternable ZnO films incorporated various contents of Pt nanoparticles. In: Applied Surface Science. 2009 ; Vol. 256, No. 4. pp. 1010-1013.
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A study on the optical and electrical properties of direct-patternable ZnO films incorporated various contents of Pt nanoparticles. / Choi, Yong June; Wang, Seok Joo; Kim, Hyuncheol; Koo, Kyoung Hoe; Park, Hyung-Ho.

In: Applied Surface Science, Vol. 256, No. 4, 30.11.2009, p. 1010-1013.

Research output: Contribution to journalArticle

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