TIME-RESOLVED STUDY ON THE IMPACT EXCITATION AND QUENCHING PROCESSES OF THE 1.54-MU-M ELECTROLUMINESCENCE EMISSION OF ER IONS IN INP

被引：8

作者：

KIMURA, T ^{[1
]}

ISSHIKI, H ^{[1
]}

ISHIDA, H ^{[1
]}

YUGO, S ^{[1
]}

SAITO, R ^{[1
]}

IKOMA, T ^{[1
]}

机构：

[1] UNIV TOKYO, INST IND SCI, MINATO KU, TOKYO 106, JAPAN

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 76卷 / 06期

关键词：

D O I：

10.1063/1.357441

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Time-resolved impact excitation and de-excitation processes of the 1.54 mu m electroluminescence (EL) emission of Er3+-doped InP are investigated. Samples are impact excited by applying electrical pulses and the time response of the EL emission is measured in the temperature range from 77 K to 330 K. The decay of the emission proves almost exponential in all the temperature ranges and shows little thermal quenching with the decay time decreasing; from 2 ms at 77 K to only 1 ms at 330 K. This result contrasts with the large thermal quenching and nonexponential characteristics of the photoluminescence (PL) time decay at high temperatures in the same sample, suggesting different excited Er3+ centers between EL and FL. Also measured is the emission rise time as a function of excitation pulse current, giving us the impact cross section of 9x10(-16) cm(2) for Er3+ ions in InP, The excitation and quenching processes as well as the efficiency of Er emission are analyzed. A model taking into consideration the presence of different Er centers explains the different behaviors in the time responses between EL and FL.

引用

页码：3714 / 3719

页数：6

共 17 条

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