H
Hoechang Kim
Researcher at Seoul National University
Publications - 4
Citations - 436
Hoechang Kim is an academic researcher from Seoul National University. The author has contributed to research in topics: Quantum dot & Nanochemistry. The author has an hindex of 4, co-authored 4 publications receiving 411 citations.
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Journal ArticleDOI
Differences in nature of defects between SrBi2Ta2O9 and Bi4Ti3O12
Byung-Eun Park,S. J. Hyun,Sang Don Bu,Tae-Hee Noh,Jaichan Lee,Hoechang Kim,Tae Heon Kim,William Jo +7 more
TL;DR: In this paper, X-ray photoemission spectroscopy measurements were executed to compare the nature of defects in SrBi2Ta2O9 (SBT) and Bi4Ti3O12 (BTO) films.
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Optical and electronic properties of post-annealed ZnO:Al thin films
TL;DR: In this paper, the optical and electronic properties of post-annealed Al-doped ZnO (ZnO:Al) thin films were examined and the lowest resistivity was observed after annealing.
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Photoluminescence enhancement in CdS quantum dots by thermal annealing
Jae Ik Kim,Jong Min Kim,Junhee Lee,Dae-Ryong Jung,Hoechang Kim,Hongsik Choi,Sungjun Lee,Sujin Byun,Suji Kang,Byungwoo Park +9 more
TL;DR: The simple annealing process diminished the accumulated defect states within the nanoparticles and thereby reduced the nonradiative recombination, which was confirmed by diffraction, absorption, and time-resolved photoluminescence and obtained the highly luminescent and defect-free nanoparticles.
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An effective oxidation approach for luminescence enhancement in CdS quantum dots by H2O2
Woojin Lee,Hoechang Kim,Dae-Ryong Jung,Jong Min Kim,Changwoo Nahm,Junhee Lee,Suji Kang,Byung Ho Lee,Byungwoo Park +8 more
TL;DR: The effects of surface passivation on the photoluminescence (PL) properties of CdS nanoparticles oxidized by straightforward H2O2 injection showed significantly enhanced luminescence properties.