WU Chun-xia, SU Long-xing, HE Zi-juan etc. Abnormal Optical Properties in ZnO Mircorods Introduced by Graphene[J]. Chinese Journal of Luminescence, 2015,36(12): 1370-1374
WU Chun-xia, SU Long-xing, HE Zi-juan etc. Abnormal Optical Properties in ZnO Mircorods Introduced by Graphene[J]. Chinese Journal of Luminescence, 2015,36(12): 1370-1374 DOI: 10.3788/fgxb20153612.1370.
Abnormal Optical Properties in ZnO Mircorods Introduced by Graphene
High crystal quality and (002) orientation preferred ZnO microrods were grown by the method of chemical vapor deposition (CVD). The optical properties of ZnO microrod on graphene substrate were investigated. The photoluminescence (PL) spectra revealed that the luminous intensity of ZnO microrod on graphene substrate was enhanced as twice as that without graphene substrate. The distribution of light field in ZnO microrod was also restricted by graphene. These are all caused by grapheme surface plasmon. In the case of ZnO microrod on the graphene substrate
E
2
(L) and E
2
(H) Raman intensity decreased dramatically by comparing with which of the ZnO microrod without graphene substrate. This further indicates that there is stronger light-matter interaction at the interface. Hence
the lattice vibration of ZnO microrod was restricted by the graphene.
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