Low-threshold amplified spontaneous emission in blends of conjugated polymers

被引：89

作者：

Gupta, R ^{[1
]}

Stevenson, M

Dogariu, A

McGehee, MD

Park, JY

Srdanov, V

Heeger, AJ

Wang, H

机构：

[1] Univ Calif Santa Barbara, Inst Polymers & Organ Solids, Santa Barbara, CA 93106 USA

[2] UNIAX Corp, Santa Barbara, CA 93117 USA

来源：

APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 24期

关键词：

D O I：

10.1063/1.122814

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Low thresholds (similar to 500W/cm(2)) for amplified spontaneous emission (ASE) are reported in films of soluble poly(paraphenylene vinylene)-based conjugated polymer blends. Efficient Forster energy transfer from the absorbing host polymer to the emitting guest polymer is observed. Emission in the blends originates predominantly from the guest polymer. The large spectral shift between the absorption and emission wavelengths lowers the self-absorption losses and results in low ASE thresholds. Initial results show an enhancement in photoluminescence quantum efficiency of the blends. (C) 1998 American Institute of Physics. [S0003-6951(98)01550-2].

引用

页码：3492 / 3494

页数：3

共 23 条

[1] Photoluminescence and electroluminescence of films from soluble PPV-polymers
Andersson, MR
Yu, G
Heeger, AJ
[J]. SYNTHETIC METALS, 1997, 85 (1-3) : 1275 - 1276
[2] Stimulated emission and lasing in dye-doped organic thin films with Forster transfer
Berggren, M
Dodabalapur, A
Slusher, RE
[J]. APPLIED PHYSICS LETTERS, 1997, 71 (16) : 2230 - 2232
[3] Berggren M, 1997, NATURE, V389, P466
[4] LIGHT-EMITTING-DIODES WITH VARIABLE COLORS FROM POLYMER BLENDS
BERGGREN, M
INGANAS, O
GUSTAFSSON, G
RASMUSSON, J
ANDERSSON, MR
HJERTBERG, T
WENNERSTROM, O
[J]. NATURE, 1994, 372 (6505) : 444 - 446
[5] Coldren L. A., 2012, DIODE LASERS PHOTONI, V218
[6] DiazGarcia MA, 1997, APPL PHYS LETT, V70, P3191, DOI 10.1063/1.119156
[7] Organic light emitting diodes
Dodabalapur, A
[J]. SOLID STATE COMMUNICATIONS, 1997, 102 (2-3) : 259 - 267
[8] Ring microlasers from conducting polymers
Frolov, SV
Shkunov, M
Vardeny, ZV
Yoshino, K
[J]. PHYSICAL REVIEW B, 1997, 56 (08) : R4363 - R4366
[9] MEASUREMENT OF ABSOLUTE PHOTOLUMINESCENCE QUANTUM EFFICIENCIES IN CONJUGATED POLYMERS
GREENHAM, NC
SAMUEL, IDW
HAYES, GR
PHILLIPS, RT
KESSENER, YARR
MORATTI, SC
HOLMES, AB
FRIEND, RH
[J]. CHEMICAL PHYSICS LETTERS, 1995, 241 (1-2) : 89 - 96
[10] White light from InGaN/conjugated polymer hybrid light-emitting diodes
Hide, F
Kozodoy, P
DenBaars, SP
Heeger, AJ
[J]. APPLIED PHYSICS LETTERS, 1997, 70 (20) : 2664 - 2666

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