Overgrowth and characterization of (11-22) semi-polar GaN on (113) silicon with a two-step method
Overgrowth and characterization of (11-22) semi-polar GaN on (113) silicon with a two-step method
复制标题
采用两步法在 (113) 硅上过度生长和表征 (11-22) 半极性 GaN
DOI:
10.1088/1361-6641/ab08bf
复制
发表时间:
2019
影响因子:
1.9
通讯作者:
Cai Y
中科院分区:
文献类型:
--
作者:
Cai Y
A two-step approach has been developed for the growth of semi-polar (11–22) GaN on patterned (113) silicon substrates, which effectively eliminates Ga melt-back etching at a high temperature, one of the most challenging issues. A (113) Si substrate is patterned into groove trenches by means of using a standard photolithography technique and then anisotropic chemical etching, forming (111) facets with an inclination angle of 58 with respect to c-axis in addition to the un-etched (113) facets. A thick AlN layer is subsequently epitaxially grown on the patterned silicon to cover all the facets ensuring to eliminate the melt-back, followed by selectively depositing SiO 2 masks on the (113) facets only. Further GaN overgrowth is performed only on the exposed (111) facets, forming (11–22) semi-polar GaN with high crystal quality along the vertical direction. Stimulated emission at room temperature has been observed with a low threshold. Low-temperature photoluminescence measurements confirm a significant reduction in basal stacking faults density. This method provides a promising approach to effectively suppress the Ga melt-back etching issue, which is particularly important for Al (Ga) N growth on semi-polar GaN that requires a high growth temperature. The presented results are crucially important for developing monolithic on-chip integration of electronics and photonics on silicon.
登录
查看更多内容
影响因子:
4
作者:
Yiwei Zhang;R. Smith;Y. Hou;B. Xu;Y. Gong;J. Bai;Tao Wang
通讯作者:
Yiwei Zhang;R. Smith;Y. Hou;B. Xu;Y. Gong;J. Bai;Tao Wang
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Michel Khoury;M. Leroux;M. Nemoz;G. Feuillet;J. Zúñiga;P. Vennégués
通讯作者:
P. Vennégués
影响因子:
4
作者:
Bai, J.;Xu, B.;Wang, T.
通讯作者:
Wang, T.
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
Y. Suzuki;他
通讯作者:
他
DOI:
10.1143/jjap.39.413
发表时间:
2000-02-01
期刊:
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
影响因子:
--
作者:
Takeuchi, T;Amano, H;Akasaki, I
通讯作者:
Akasaki, I