C
Chi Chung Ling
Researcher at University of Hong Kong
Publications - 92
Citations - 1969
Chi Chung Ling is an academic researcher from University of Hong Kong. The author has contributed to research in topics: Vacancy defect & Positron. The author has an hindex of 18, co-authored 92 publications receiving 1846 citations. Previous affiliations of Chi Chung Ling include Hong Kong University of Science and Technology.
Papers
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Journal ArticleDOI
Defects in ZnO nanorods prepared by a hydrothermal method
KH Tam,C. K. Cheung,Yu Hang Leung,Aleksandra B. Djurišić,Chi Chung Ling,C. D. Beling,S. Fung,Wai Ming Kwok,W. K. Chan,D. L. Phillips,Lu Ding,Weikun Ge +11 more
TL;DR: ZnO nanorod arrays were fabricated using a hydrothermal method and found that, while the defect emission can be significantly reduced by annealing at 200 degrees C, the rods still have large defect concentrations as confirmed by their low positron diffusion length and short PL decay time constants.
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Identification of Zn-vacancy-hydrogen complexes in ZnO single crystals: A challenge to positron annihilation spectroscopy
G. Brauer,W. Anwand,D. Grambole,Jörg Grenzer,Wolfgang Skorupa,Jakub Čížek,Jan Kuriplach,Ivan Procházka,Chi Chung Ling,C. K. So,Detlev Schulz,Detlef Klimm +11 more
TL;DR: In this article, a systematic study of various, nominally undoped ZnO single crystals, either hydrothermally grown (HTG) or melt grown (MG), has been performed.
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Undoped p-type ZnO nanorods synthesized by a hydrothermal method
Y. F. Hsu,Yan Yan Xi,Kai Hang Tam,Aleksandra B. Djurišić,Jiaming Luo,Chi Chung Ling,Chor Keung Cheung,Alan Man Ching Ng,Wai Kin Chan,Xin Deng,C. D. Beling,Stevenson Hon Yuen Fung,Kok Wai Cheah,Patrick W. K. Fong,Charles Surya +14 more
TL;DR: In this paper, the authors demonstrate a versatile method for the growth or p-type or n-type ZnO nanorods from the same growth solution at temperature as low as 90°C, where the conductivity type is controlled by the preparation of the seed layer for nanorod growth.
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Exceptionally Long Exciton Photoluminescence Lifetime in ZnO Tetrapods
Yongchun Zhong,Aleksandra B. Djurišić,Y. F. Hsu,Kam Sing Wong,Gerhard Brauer,Chi Chung Ling,Wai Kin Chan +6 more
TL;DR: In this article, the photoluminescence (PL) lifetime of ZnO tetrapods was shown to be an order of magnitude higher than the best results achieved in epilayers and single crystals.
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Hydrogen peroxide treatment induced rectifying behavior of Au∕n-ZnO contact
Quanquan Gu,Chi Chung Ling,X. D. Chen,C. K. Cheng,Alan Man Ching Ng,C. D. Beling,Steve Fung,Aleksandra B. Djurišić,Linghong Lu,Gerhard Brauer,Hock Chun Ong +10 more
TL;DR: In this paper, the Au∕n-ZnO contact from Ohmic to rectifying with H2O2 pretreatment was studied systematically using I-V measurements, x-ray photoemission spectroscopy, positron annihilation spectrography, and deep level transient spectrograms, and the formation of a rectifying contact can be attributed to the reduced conductivity of the surface region due to the removal of OH and formation of vacancy-type defects.