Spatially resolved detection of electroluminescence from lateral p-n junctions on GaAs (111)A patterned substrates using a near-field scanning optical microscope

被引:10
作者
Saito, N
Sato, F
Takizawa, K
Kusano, J
Okumura, H
Aida, T
Saiki, T
Ohtsu, M
机构
[1] KANAGAWA ACAD SCI & TECHNOL, TAKATSU KU, KAWASAKI, KANAGAWA 213, JAPAN
[2] TOKYO INST TECHNOL, MIDORI KU, YOKOHAMA, KANAGAWA 226, JAPAN
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1997年 / 36卷 / 7B期
关键词
lateral p-n junction; GaAs (111)A; MBE; patterned substrate; near-field scanning optical microscope;
D O I
10.1143/JJAP.36.L896
中图分类号
O59 [应用物理学];
学科分类号
摘要
Lateral p-n junctions on GaAs (111)A patterned substrates are characterized through the spatially resolved detection of light emission by current injection using a collection-mode near-field scanning optical microscope. The junctions are one-step grown at the upper and the lower end of the slope, taking advantage of the amphoteric nature of Si in GaAs. Although the width of the transition region determined from spatially resolved photoluminescence measurements is much wider in the lower junction than in the upper one, the broadness of the junction, which is observed for the first time owing to the high resolution of the detection system, is the same for both junctions.
引用
收藏
页码:L896 / L898
页数:3
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