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ZnO nanolasers on graphene films

Title
ZnO nanolasers on graphene films
Authors
Baek, HyeonjunPark, Jun BeomPark, Jong-wooHyun, Jerome K.Yoon, HosangOh, HongseokYoon, Jiyoung
Ewha Authors
현가담
SCOPUS Author ID
현가담scopus
Issue Date
2016
Journal Title
APPLIED PHYSICS LETTERS
ISSN
0003-6951JCR Link1077-3118JCR Link
Citation
vol. 108, no. 26
Publisher
AMER INST PHYSICS
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We grew and characterized zinc oxide (ZnO) nanolasers on graphene films. By using graphene as a growth medium, we were able to prepare position-controlled and vertically aligned ZnO nanotube lasers. The ZnO nanolasers grown on graphene films showed good optical characteristics, evidenced by a low lasing threshold. Furthermore, the nanolaser/graphene system was easily lifted off the original substrate and transferred onto foreign substrates. The lasing performance was observed to be significantly enhanced by depositing a layer of silver on the back of the graphene film during this transfer process, which was quantitatively investigated using finite-difference time-domain simulations. Due to the wide selection of substrates enabled by the use of graphene films, our results suggest promising strategies for preparing practical nanolasers with improved performance. Published by AIP Publishing.
DOI
10.1063/1.4954798
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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