Injection level dependent luminescence characteristics of UV-violet emitting (AlGaIn)N LED structures

被引：14

作者：

Kunzer, M. ^{[1
]}

Baeumler, M. ^{[1
]}

Koehler, K. ^{[1
]}

Leancu, C. -C. ^{[1
]}

Kaufmann, U. ^{[1
]}

Wagner, J. ^{[1
]}

机构：

[1] Fraunhofer Inst Appl Solid State Phys, D-79108 Freiburg, Germany

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2007年 / 204卷 / 01期

关键词：

D O I：

10.1002/pssa.200673516

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of (AlGaIn)N LEDs covering the 377 to 428 nm wavelength interval has been analyzed by pulsed electro- and temperature dependent photo-luminescence with respect to the carrier density dependence of the quantum efficiency and peak position. A non-thermal rollover of the quantum efficiency vs. current is observed for the LEDs with higher In content and longer wavelengths (lambda > 400 mn). The photoluminescence data reveal In induced band tails as well as the presence of a quantum confined stark effect. Both effects contribute to the observed non-thermal rollover. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：236 / 240

页数：5

共 11 条

[1]

BAEUMLER M, IN PRESS PHYS STAT C

[2] High brightness LEDs for general lighting applications using the new ThinGaN™-technology [J].

Haerle, V ;

Hahn, B ;

Kaiser, S ;

Weimar, A ;

Bader, S ;

Eberhard, F ;

Plössl, A ;

Eisert, D .

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2004, 201 (12) :2736-2739

[3]

Kaufmann U, 2001, PHYS STATUS SOLIDI A, V188, P143, DOI 10.1002/1521-396X(200111)188:1<143::AID-PSSA143>3.0.CO

[4]

2-0

[5]

Krames MR, 2002, PHYS STATUS SOLIDI A, V192, P237, DOI 10.1002/1521-396X(200208)192:2<237::AID-PSSA237>3.0.CO

[6]

2-I

[7]

Schenk HPD, 1999, PHYS STATUS SOLIDI A, V176, P307, DOI 10.1002/(SICI)1521-396X(199911)176:1<307::AID-PSSA307>3.0.CO

[8]

2-U

[9] Luminescence conversion of blue light emitting diodes [J].

Schlotter, P ;

Schmidt, R ;

Schneider, J .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1997, 64 (04) :417-418

[10]

Sommer F, 2004, PHYS STATUS SOLIDI A, V201, P2628, DOI 10.1002/pass.200404983

← 1 2 →