Light-induced narrowing of excitonic absorption lines in GaN

被引：11

作者：

Trautman, P ^{[1
]}

Pakula, K ^{[1
]}

Bozek, R ^{[1
]}

Baranowski, JM ^{[1
]}

机构：

[1] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 17期

关键词：

D O I：

10.1063/1.1622788

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The fundamental absorption edge of GaN has been investigated in GaN/AlxGa1-xN heterostructures. A broad excitonic line is observed after the sample has been cooled in darkness. A metastable narrowing occurs and three excitonic absorption lines are observed after the sample has been illuminated. Measurements of this effect have been made as a function of temperature and photon energy. It seems that the broadening is induced by an electric field present around dislocations in GaN. This field is reduced by free carriers created during illumination, which results in narrowing of the excitonic lines. (C) 2003 American Institute of Physics.

引用

页码：3510 / 3512

页数：3

共 50 条

[21] LIGHT-INDUCED TRANSIENT CHANGES IN THE ABSORPTION SPECTRUM OF RHODOPSIN IN SOLUTION
WULFF, VJ
ABRAHAMSON, EW
LINSCHITZ, H
ADAMS, RG
FEDERATION PROCEEDINGS, 1957, 16 (01) : 139 - 139
[22] Dynamic light-induced absorption in highly reduced barium titanate
Huang, CY
Lin, CH
Chang, JY
PHOTOREFRACTIVE EFFECTS, MATERIALS, AND DEVICES, PROCEEDINGS VOLUME, 2003, 87 : 99 - 105
[23] RISE KINETICS OF LIGHT-INDUCED MODULATION OF ABSORPTION FOR A CDS CRYSTAL
LONG, ER
CONWAY, EJ
JOURNAL OF APPLIED PHYSICS, 1976, 47 (11) : 4934 - 4935
[24] Light-induced absorption in nominally pure bismuth silicon oxide
Li, FF
Xu, JJ
Kong, YF
Huang, H
Zhang, GY
Yang, CH
Xu, YH
CHINESE PHYSICS LETTERS, 2001, 18 (12) : 1595 - 1597
[25] MODIFICATION OF LIGHT-INDUCED ABSORPTION CHANGES IN RHODOSPIRILLUM RUBRUM EXTRACTS
GELLER, DM
FEDERATION PROCEEDINGS, 1966, 25 (2P1) : 737 - &
[26] Light-induced absorption in photorefractive barium titanate doped with rhodium
Yang, CX
Zhu, Y
Zhang, DF
Niu, XJ
Zhou, T
Liu, HB
Wu, X
CHINESE PHYSICS LETTERS, 1998, 15 (08) : 574 - 576
[27] Light-induced absorption in lead lanthanum zirconate titanate ceramics
Schaab, S.
Granzow, T.
Woike, Th.
Schaniel, D.
JOURNAL OF APPLIED PHYSICS, 2009, 105 (02)
[28] LIGHT-INDUCED ABSORPTION ENHANCEMENT IN C(60) TOLUENE SOLUTION
ZHAO, J
ZHANG, ZX
YE, PX
XIE, SS
ZHANG, ZB
ZHENG, YF
ACTA PHYSICA SINICA-OVERSEAS EDITION, 1994, 3 (09): : 676 - 681
[29] Light-induced absorption in photorefractive BaTiO3 crystals
Banyal, RK
Prasad, BR
JOURNAL OF APPLIED PHYSICS, 2003, 93 (12) : 9466 - 9469
[30] Light-induced absorption in nominally pure bismuth silicon oxide
Li, Fei-Fei
Xu, Jing-Jun
Kong, Yong-Fa
Huang, Hui
Zhang, Guang-Yin
Yang, Chun-Hui
Xu, Yu-Heng
2001, IOP Publishing Ltd (18):

← 1 2 3 4 5 →