HIGH ELECTRON-AFFINITY POLYMERS FOR LEDS

被引：211

作者：

MORATTI, SC ^{[1
]}

CERVINI, R ^{[1
]}

HOLMES, AB ^{[1
]}

BAIGENT, DR ^{[1
]}

FRIEND, RH ^{[1
]}

GREENHAM, NC ^{[1
]}

GRUNER, J ^{[1
]}

HAMER, PJ ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,DEPT PHYS,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND

来源：

SYNTHETIC METALS | 1995年 / 71卷 / 1-3期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/0379-6779(94)03193-A

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Several high electron affinity cyano derivatives based on poly(phenylenevinylene) (PPV) have been synthesised via a Knoevenagel condensation reaction. The HOMO-LUMO gap and hence the electro-optical properties of the polymers can be altered by judicious choice of the monomer units or the solubilising groups. The construction of efficient polymer LEDs on both glass and silicon substrates using air stable aluminium negative contacts can therefore be realised. Dialkyl substituents on the aromatic ring were found to lower the conjugation through the chain, resulting in large blue shifts in the UV/VIS absorption maximum. The fluoresence emission of the alkyl substituted polymers appears to be lower than that of the equivalent dialkoxy-substituted polymers. The inclusion of thiophene units in the main chain lowers the HOMO-LUMO gap and shifts the luminescence emission into the infra-red.

引用

页码：2117 / 2120

页数：4

共 33 条

[1] BAIGENT DR, UNPUB SYNTH MET
[2] CORRECTION
BRAUN, D
[J]. APPLIED PHYSICS LETTERS, 1991, 59 (07) : 878 - 878
[3] IMPROVED EFFICIENCY IN SEMICONDUCTING POLYMER LIGHT-EMITTING-DIODES
BRAUN, D
HEEGER, AJ
KROEMER, H
[J]. JOURNAL OF ELECTRONIC MATERIALS, 1991, 20 (11) : 945 - 948
[4] ELECTROLUMINESCENCE FROM LIGHT-EMITTING-DIODES FABRICATED FROM CONDUCTING POLYMERS
BRAUN, D
HEEGER, AJ
[J]. THIN SOLID FILMS, 1992, 216 (01) : 96 - 98
[5] VISIBLE-LIGHT EMISSION FROM SEMICONDUCTING POLYMER DIODES
BRAUN, D
HEEGER, AJ
[J]. APPLIED PHYSICS LETTERS, 1991, 58 (18) : 1982 - 1984
[6] INFLUENCE OF DONOR AND ACCEPTOR SUBSTITUENTS ON THE ELECTRONIC CHARACTERISTICS OF POLY(PARA-PHENYLENE VINYLENE) AND POLY(PARA-PHENYLENE)
BREDAS, JL
HEEGER, AJ
[J]. CHEMICAL PHYSICS LETTERS, 1994, 217 (5-6) : 507 - 512
[7] REACTIONS PROCEEDING VIA THE REACTIVE INTERMEDIATE ALPHA-VINYL-P-XYLYLENE - CONTRASTING ORIENTATIONS IN THE FORMATION OF CYCLIC DIMERS AND POLYMER
BROOKE, GM
WOOLLEY, MF
[J]. POLYMER, 1993, 34 (06) : 1282 - 1288
[8] ELECTROLUMINESCENCE FROM MULTILAYER CONJUGATED POLYMER DEVICES - SPATIAL CONTROL OF EXCITON FORMATION AND EMISSION
BROWN, AR
GREENHAM, NC
BURROUGHES, JH
BRADLEY, DDC
FRIEND, RH
BURN, PL
KRAFT, A
HOLMES, AB
[J]. CHEMICAL PHYSICS LETTERS, 1992, 200 (1-2) : 46 - 54
[9] POLY(P-PHENYLENEVINYLENE) LIGHT-EMITTING-DIODES - ENHANCED ELECTROLUMINESCENT EFFICIENCY THROUGH CHARGE CARRIER CONFINEMENT
BROWN, AR
BRADLEY, DDC
BURROUGHES, JH
FRIEND, RH
GREENHAM, NC
BURN, PL
HOLMES, AB
KRAFT, A
[J]. APPLIED PHYSICS LETTERS, 1992, 61 (23) : 2793 - 2795
[10] BURN PL, 1992, MATER RES SOC SYMP P, V247, P647, DOI 10.1557/PROC-247-647

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