Strain dependent anisotropy in photoluminescence of heteroepitaxial nonpolar a-plane ZnO layers
Strain dependent anisotropy in photoluminescence of heteroepitaxial nonpolar a-plane ZnO layers
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异质外延非极性 a 面 ZnO 层光致发光中的应变相关各向异性
DOI:
10.1364/ome.7.003944
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发表时间:
2017-11
影响因子:
2.8
通讯作者:
Feng Zhechuan
中科院分区:
文献类型:
--
作者:
Chen Jingwen;Zhang Jun;Dai Jiangnan;Wu Feng;Wang Shuai;Long Hanling;Liang Renli;Xu Jin;Chen Changqing;Tang Zhiwu;He Yunbin;Li Mingkai;Feng Zhechuan
Nonpolar a-plane ZnO layers with anisotropic in-plane strains were prepared on the three substrates of r-sapphire, a-GaN, and a-Al0.08GaN templates via a pulsed laser deposition system, to investigate the distinguishing anisotropic photoluminescence properties of a-ZnO grown on foreign substrates. The optical anisotropy of nonpolar ZnO grown on GaN and AlGaN templates was investigated via polarization-dependent photoluminescence (PL) measurement and polarization transmission spectra measurement. The 0.3 μm a-ZnO layer grown on the a-GaN template has significant anisotropic optical properties with a degree of polarization (DOP) of the photoluminescence (PL) spectrum of about 0.8907, larger than 0.8786 of ZnO on a-Al0.08GaN or 0.8408 of a-ZnO on r-sapphire, revealing that the a-GaN may be the best candidate for the fabrication of modulators and that the increase of the Al component x of p-AlxGa1-xN will attenuate the anisotropic properties of the heteroepitaxial a-ZnO layer, providing a valuable basis for the choice of appropriate substrate for nonpolar a-plane ZnO based polarized optoelectronic devices. Moreover, the relationship between crystal quality anisotropy and optical anisotropy was proposed.
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影响因子:
41.2
作者:
Tsukazaki, A;Ohtomo, A;Kawasaki, M
通讯作者:
Kawasaki, M
影响因子:
4
作者:
J. Tomm;T. Q. Tien;D. Cassidy
通讯作者:
J. Tomm;T. Q. Tien;D. Cassidy
影响因子:
3.7
作者:
C. Shan;Zhi-feng Liu;S. Hark
通讯作者:
C. Shan;Zhi-feng Liu;S. Hark
影响因子:
4
作者:
Tian, Hongzheng;Wang, Xudong;Hu, Weida
通讯作者:
Hu, Weida
影响因子:
1.5
作者:
A. Chakraborty;B. Haskell;H. Masui;S. Keller;J. Speck;S. Denbaars;S. Nakamura;U. Mishra
通讯作者:
A. Chakraborty;B. Haskell;H. Masui;S. Keller;J. Speck;S. Denbaars;S. Nakamura;U. Mishra