Universal distribution of residual carriers in tetrahedrally coordinated amorphous semiconductors

被引：38

作者：

Yan, BJ ^{[1
]}

Schultz, NA ^{[1
]}

Efros, AL ^{[1
]}

Taylor, PC ^{[1
]}

机构：

[1] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.84.4180

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An uncommon electron spin resonance technique is used to show that a universal distribution of residual carriers exists in tetrahedrally coordinated amorphous semiconductors following optical excitation at low temperatures. This universal behavior at long decay times results because statistical fluctuations in the electron and hole densities cannot occur and therefore do not affect the kinetics. This behavior is: confirmed for carrier densities between 10(16) and 10(17) cm(-3) and decay times as long as 10(4) s.

引用

收藏

页码：4180 / 4183

页数：4

相关论文

共 24 条

[11] ROLE OF DENSITY FLUCTUATIONS IN BIMOLECULAR REACTION-KINETICS [J].

OVCHINNIKOV, AA ;

ZELDOVICH, YB .

CHEMICAL PHYSICS, 1978, 28 (1-2) :215-218

[12] Spin structure of impurity band in semiconductors in two- and three-dimensional cases [J].

Ponomarev, IV ;

Flambaum, VV ;

Efros, AL .

PHYSICAL REVIEW B, 1999, 60 (08) :5485-5496

[13] NONEQUILIBRIUM OCCUPANCY OF TAIL STATES AND DEFECTS IN ALPHA-SIH - IMPLICATIONS FOR DEFECT STRUCTURE [J].

SCHUMM, G ;

JACKSON, WB ;

STREET, RA .

PHYSICAL REVIEW B, 1993, 48 (19) :14198-14207

[14] ELECTRON-HOLE RECOMBINATION, DISORDERED SPINS AND THE NEAREST-AVAILABLE-NEIGHBOR DISTRIBUTION [J].

SEARLE, TM ;

BISHOP, JEL .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1986, 53 (01) :L9-L14

[15] ELECTRONIC TRANSPORT AND RECOMBINATION IN AMORPHOUS-SEMICONDUCTORS AT LOW-TEMPERATURES [J].

SHKLOVSKII, BI ;

FRITZSCHE, H ;

BARANOVSKII, SD .

PHYSICAL REVIEW LETTERS, 1989, 62 (25) :2989-2992

[16] RECOMBINATION IN A-SI-H - TRANSITIONS THROUGH DEFECT STATES [J].

STREET, RA ;

BIEGELSEN, DK ;

WEISFIELD, RL .

PHYSICAL REVIEW B, 1984, 30 (10) :5861-5870

[17]

STREET RA, 1991, HYDROGENATED AMORPHO, P298

[18] PARAMAGNETIC STATES IN DOPED AMORPHOUS-SILICON AND GERMANIUM [J].

STUTZMANN, M ;

STUKE, J .

SOLID STATE COMMUNICATIONS, 1983, 47 (08) :635-639

[19] ROTATIONAL DIFFUSION STUDIED BY PASSAGE SATURATION TRANSFER ELECTRON-PARAMAGNETIC RESONANCE [J].

THOMAS, DD ;

DALTON, LR ;

HYDE, JS .

JOURNAL OF CHEMICAL PHYSICS, 1976, 65 (08) :3006-3024

[20] PARTICLE ANTIPARTICLE ANNIHILATION IN DIFFUSIVE MOTION [J].

TOUSSAINT, D ;

WILCZEK, F .

JOURNAL OF CHEMICAL PHYSICS, 1983, 78 (05) :2642-2647