COMPARISON OF HOT-CARRIER RELAXATION IN QUANTUM-WELLS AND BULK GAAS AT HIGH CARRIER DENSITIES

被引：88
作者：
PELOUCH, WS [1 ]
ELLINGSON, RJ [1 ]
POWERS, PE [1 ]
TANG, CL [1 ]
SZMYD, DM [1 ]
NOZIK, AJ [1 ]
机构：
[1] SOLAR ENERGY RES INST,GOLDEN,CO 80401
来源：
PHYSICAL REVIEW B | 1992年 / 45卷 / 03期
关键词：
D O I：
10.1103/PhysRevB.45.1450
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An investigation of the hot-carrier relaxation in GaAs/(Al,Ga)As quantum wells and bulk GaAs in the high-carrier-density limit is presented. Using a time-resolved luminescence up-conversion technique with less-than-or-equal-to 80-fs temporal resolution, carrier temperatures are measured in the 100-fs-to-2-ns range. Our results show that the hot-carrier cooling rates in the quantum wells are significantly slower than in the bulk for carrier densities greater than 2 x 10(18) cm-3. A comparison is made with previous publications to resolve the confusion concerning the difference in cooling rates in quasi-two- and three-dimensional systems.
引用
收藏
页码：1450 / 1453
页数：4
相关论文
共 21 条
[11]   SPECTROSCOPY OF HOT CARRIERS IN SEMICONDUCTORS [J].
LYON, SA .
JOURNAL OF LUMINESCENCE, 1986, 35 (03) :121-154
[12]   OPTICAL UP-CONVERSION LIGHT GATE WITH PICOSECOND RESOLUTION [J].
MAHR, H ;
HIRSCH, MD .
OPTICS COMMUNICATIONS, 1975, 13 (02) :96-99
[13]   DEPENDENCE OF HOT CARRIER LUMINESCENCE ON BARRIER THICKNESS IN GAAS/ALGAAS SUPERLATTICES AND MULTIPLE QUANTUM-WELLS [J].
NOZIK, AJ ;
PARSONS, CA ;
DUNLAVY, DJ ;
KEYES, BM ;
AHRENKIEL, RK .
SOLID STATE COMMUNICATIONS, 1990, 75 (04) :297-301
[14]   PHOTOEXCITED HOT CARRIERS - FROM CW TO 6-FS IN 20 YEARS [J].
SHAH, J .
SOLID-STATE ELECTRONICS, 1989, 32 (12) :1051-1056
[15]   ULTRAFAST LUMINESCENCE SPECTROSCOPY USING SUM FREQUENCY GENERATION [J].
SHAH, J .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1988, 24 (02) :276-288
[16]   PICOSECOND DYNAMICS OF HOT CARRIER RELAXATION IN HIGHLY EXCITED MULTI-QUANTUM WELL STRUCTURES [J].
SHANK, CV ;
FORK, RL ;
YEN, R ;
SHAH, J ;
GREENE, BI ;
GOSSARD, AC ;
WEISBUCH, C .
SOLID STATE COMMUNICATIONS, 1983, 47 (12) :981-983
[17]  
Sze S. M., 1990, HIGH SPEED SEMICONDU
[18]  
UKICHI H, 1985, SOLID STATE COMMUN, V55, P311
[19]   OPTICAL TIME-OF-FLIGHT MEASUREMENT OF CARRIER DIFFUSION AND TRAPPING IN AN INGAAS/INP HETEROSTRUCTURE [J].
WESTLAND, DJ ;
MIHAILOVIC, D ;
RYAN, JF ;
SCOTT, MD .
APPLIED PHYSICS LETTERS, 1987, 51 (08) :590-592
[20]   SUBPICOSECOND LUMINESCENCE STUDY OF HOT-ELECTRON RELAXATION IN GAAS QUANTUM WELLS [J].
WISE, FW ;
TANG, CL .
SOLID STATE COMMUNICATIONS, 1989, 69 (08) :821-826
123