Interchain photoluminescence in poly(phenylene vinylene) derivatives

被引：83
作者：
Conwell, EM
Perlstein, J
Shaik, S
机构：
[1] UNIV ROCHESTER, DEPT CHEM, CTR PHOTOINDUCED CHARGE TRANSFER, ROCHESTER, NY 14627 USA
[2] HEBREW UNIV JERUSALEM, DEPT ORGAN CHEM, JERUSALEM, ISRAEL
[3] HEBREW UNIV JERUSALEM, FRITZ HABER RES CTR MOL DYNAM, JERUSALEM, ISRAEL
来源：
PHYSICAL REVIEW B | 1996年 / 54卷 / 04期
关键词：
D O I：
10.1103/PhysRevB.54.R2308
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We calculate that in cyano-substituted poly(phenylene vinylene), CN-PPV, and poly[2-methoxy, 5-(2'-ethyl-hexyloxy)phenylene vinylene], MEH-PPV, the lowest-energy arrangement has the chains parallel, with the perpendicular distance between chains 3.4 Angstrom in the former case, 4.1 Angstrom in the latter. Although there is evidence that most of the excitations created by above-band-gap light are polaron pairs or excimers in both cases, only those in CN-PPV luminesce because the smaller interchain distance results in a much larger matrix element for emission.
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收藏
页码：R2308 / R2310
页数：3
相关论文
共 22 条
[1]  
AHARONSHALOM E, 1986, ISRAEL J CHEM, V27, P375
[2]   CONFORMATIONAL-ANALYSIS .130. MM2 - HYDROCARBON FORCE-FIELD UTILIZING V1 AND V2 TORSIONAL TERMS [J].
ALLINGER, NL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (25) :8127-8134
[3]   STRATEGIC DESIGN OF ORGANIC CONDUCTORS - STRUCTURE OF A PROTOTYPICAL MOLECULE [J].
BECKER, JY ;
BERNSTEIN, J ;
BITTNER, S ;
LEVI, N ;
SHAIK, SS .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (13) :4468-4469
[4]  
BECKER JY, 1986, CHEM ORGANIC CONDUCT, V27
[5]   LIGHT-EMITTING-DIODES BASED ON CONJUGATED POLYMERS [J].
BURROUGHES, JH ;
BRADLEY, DDC ;
BROWN, AR ;
MARKS, RN ;
MACKAY, K ;
FRIEND, RH ;
BURN, PL ;
HOLMES, AB .
NATURE, 1990, 347 (6293) :539-541
[6]   PHOTOGENERATION OF POLARON PAIRS IN POLY (PHENYLENE VINYLENE) [J].
CONWELL, EM ;
MIZES, HA .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1994, 256 :27-33
[7]   EFFICIENT PHOTODIODES FROM INTERPENETRATING POLYMER NETWORKS [J].
HALLS, JJM ;
WALSH, CA ;
GREENHAM, NC ;
MARSEGLIA, EA ;
FRIEND, RH ;
MORATTI, SC ;
HOLMES, AB .
NATURE, 1995, 376 (6540) :498-500
[8]  
HERBSTEIN F, 1971, PERSPECTIVES STRUCTU, V4, P161
[9]   AN EXTENDED HUCKEL THEORY .I. HYDROCARBONS [J].
HOFFMANN, R .
JOURNAL OF CHEMICAL PHYSICS, 1963, 39 (06) :1397-&
[10]   ASSIGNMENT OF THE PICOSECOND PHOTOINDUCED ABSORPTION IN PHENYLENE VINYLENE POLYMERS [J].
HSU, JWP ;
YAN, M ;
JEDJU, TM ;
ROTHBERG, LJ ;
HSIEH, BR .
PHYSICAL REVIEW B, 1994, 49 (01) :712-715
123