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Ho Jung Chang

Researcher at Dankook University

Publications -  67
Citations -  767

Ho Jung Chang is an academic researcher from Dankook University. The author has contributed to research in topics: Thin film & PEDOT:PSS. The author has an hindex of 14, co-authored 66 publications receiving 731 citations.

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Characteristics of the ZnO thin film transistor by atomic layer deposition at various temperatures

TL;DR: In this article, the authors examined the electrical and chemical properties of ZnO thin film transistors at various temperatures and showed that the electrical properties of the TFT were enhanced as the processing temperature decreased.
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Structural and Electrical Properties of ZnO Thin Films Deposited by Atomic Layer Deposition at Low Temperatures

TL;DR: In this article, the controllability of the preferred orientations of ZnO thin films by varying the process temperature and determining the effect of preferred orientation on the electrical properties of the films was investigated.
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Preparation and characterizations of Zn2SiO4:Mn green phosphors

TL;DR: In this paper, a solution reaction method was proposed for green phosphors and compared with the ones prepared with the conventional solid-state reaction method, and the maximum emission intensity of Zn 2− x Mn x SiO 4 phosphors under vacuum ultra violet (VUV) excitation occurred at the Mn concentration of x = 0.02.
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Improved performance of organic light-emitting diodes fabricated on Al-doped ZnO anodes incorporating a homogeneous Al-doped ZnO buffer layer grown by atomic layer deposition.

TL;DR: This work investigated the use of a homogeneous Al-doped zinc oxide (AZO) buffer layer to improve the performance of an organic light-emitting diode (OLED) device fabricated on an AZO anode.
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Triplet host engineering for triplet exciton management in phosphorescent organic light-emitting diodes

TL;DR: In this paper, the performance of green phosphorescent organic light-emitting diodes with a triplet mixed host emitting layer were correlated with the energy levels and composition of the host materials.