INTERCHAIN EXCITATIONS IN CONJUGATED POLYMERS

被引：406

作者：

YAN, M

ROTHBERG, LJ

KWOCK, EW

MILLER, TM

机构：

[1] AT and T Bell Laboratories, Murray Hill, NJ 07974

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.75.1992

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The luminescence quantum yield is dramatically increased upon going from films to dilute blends or solutions of a soluble phenylenevinylene polymer. Nevertheless, direct measurements of the decay dynamics of the emissive excitons show that their lifetimes are not very different. Separation of the polymer chains suppresses interchain exciton formation, which otherwise competes favorably with the generation of emissive intrachain excitons in films. We discuss the consequences for the design of polymeric systems for optoelectronics.

引用

页码：1992 / 1995

页数：4

共 27 条

[21] PHOTOINDUCED ABSORPTION FROM TRIPLET EXCITATIONS IN POLY(2-METHOXY, 5-(2'-ETHYL-HEXYLOXY)-P-PHENYLENE VINYLENE) ORIENTED BY GEL-PROCESSING IN POLYETHYLENE
SMILOWITZ, L
HEEGER, AJ
[J]. SYNTHETIC METALS, 1992, 48 (02) : 193 - 202
[22] TIME-RESOLVED PHOTOLUMINESCENCE FROM POLY[2-METHOXY, 5-(2'-ETHYL-HEXYLOXY)-P-PHENYLENE-VINYLENE] - SOLUTIONS, GELS, FILMS, AND BLENDS
SMILOWITZ, L
HAYS, A
HEEGER, AJ
WANG, G
BOWERS, JE
[J]. JOURNAL OF CHEMICAL PHYSICS, 1993, 98 (08) : 6504 - 6509
[23] Turro, 1991, MODERN MOL PHOTOCHEM
[24] PICOSECOND PHOTOINDUCED DICHROISM IN TRANS-(CH)X - DIRECT MEASUREMENT OF SOLITON DIFFUSION
VARDENY, Z
STRAIT, J
MOSES, D
CHUNG, TC
HEEGER, AJ
[J]. PHYSICAL REVIEW LETTERS, 1982, 49 (22) : 1657 - 1660
[25] Wudl F., 1993, J AM CHEM SOC, DOI DOI 10.1021/JA00068A005, Patent No. 5189136
[26] SPATIALLY INDIRECT EXCITONS AS PRIMARY PHOTOEXCITATIONS IN CONJUGATED POLYMERS
YAN, M
ROTHBERG, LJ
PAPADIMITRAKOPOULOS, F
GALVIN, ME
MILLER, TM
[J]. PHYSICAL REVIEW LETTERS, 1994, 72 (07) : 1104 - 1107
[27] DEFECT QUENCHING OF CONJUGATED POLYMER LUMINESCENCE
YAN, M
ROTHBERG, LJ
PAPADIMITRAKOPOULOS, F
GALVIN, ME
MILLER, TM
[J]. PHYSICAL REVIEW LETTERS, 1994, 73 (05) : 744 - 747

← 1 2 3 →