NOVEL BLUE ELECTROLUMINESCENT POLYMERS WITH WELL-DEFINED CONJUGATION LENGTH

被引：104

作者：

ZYUNG, T ^{[1
]}

HWANG, DH ^{[1
]}

KANG, IN ^{[1
]}

SHIM, HK ^{[1
]}

HWANG, WY ^{[1
]}

KIM, JJ ^{[1
]}

机构：

[1] KOREA ADV INST SCI & TECHNOL,DEPT CHEM,YUSONG GU,TAEJON 305701,SOUTH KOREA

来源：

CHEMISTRY OF MATERIALS | 1995年 / 7卷 / 08期

关键词：

D O I：

10.1021/cm00056a015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Light emission from pale blue to greenish blue is successfully obtained from the diodes made of the trimethylsilyl-, monoalkoxy-, and dialkoxy-substituted polymers with well-defined conjugation length containing phenylenevinylene units. The conjugation length is adjusted by incorporating the nonconjugated spacer group in the backbone. The polymers are organic soluble and allow the fabrication of the light-emitting diode by spinning without further thermal processes. The fabricated devices show typical diode characteristics with operation voltages of 15-20 V, and the light is visible at the current density of about less than 0.5 mA/cm(2) for all three devices. The electroluminescence spectra are similar to the photoluminescence spectra and show the red shift as the electron-donation effects of the substituents become stronger. The bluest color of light emission corresponds to 470 nm for the polymer with trimethylsilyl substituent.

引用

页码：1499 / 1503

页数：5

共 20 条

[1] BLUE LIGHT-EMITTING ORGANIC ELECTROLUMINESCENT DEVICES [J].

ADACHI, C ;

TSUTSUI, T ;

SAITO, S .

APPLIED PHYSICS LETTERS, 1990, 56 (09) :799-801

[2]

BOLOTIN BM, 1988, ORGANIC LUMINESCENT

[3] VISIBLE-LIGHT EMISSION FROM SEMICONDUCTING POLYMER DIODES [J].

BRAUN, D ;

HEEGER, AJ .

APPLIED PHYSICS LETTERS, 1991, 58 (18) :1982-1984

[4] CHEMICAL TUNING OF ELECTROLUMINESCENT COPOLYMERS TO IMPROVE EMISSION EFFICIENCIES AND ALLOW PATTERNING [J].

BURN, PL ;

HOLMES, AB ;

KRAFT, A ;

BRADLEY, DDC ;

BROWN, AR ;

FRIEND, RH ;

GYMER, RW .

NATURE, 1992, 356 (6364) :47-49

[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] BLUE ELECTROLUMINESCENT DEVICE BASED ON A CONJUGATED POLYMER [J].

GREM, G ;

LEDITZKY, G ;

ULLRICH, B ;

LEISING, G .

SYNTHETIC METALS, 1992, 51 (1-3) :383-389

[7] NOVEL SILICON-SUBSTITUTED, SOLUBLE POLY(PHENYLENEVINYLENE)S - ENLARGEMENT OF THE SEMICONDUCTOR BANDGAP [J].

HOGER, S ;

MCNAMARA, JJ ;

SCHRICKER, S ;

WUDL, F .

CHEMISTRY OF MATERIALS, 1994, 6 (02) :171-173

[8]

HOLMES AB, 1993, SYNTHETIC MET, V55, P4031

[9] BRIGHT BLUE ELECTROLUMINESCENCE FROM HOLE TRANSPORTING POLYCARBONATE [J].

HOSOKAWA, C ;

KAWASAKI, N ;

SAKAMOTO, S ;

KUSUMOTO, T .

APPLIED PHYSICS LETTERS, 1992, 61 (21) :2503-2505

[10]

KAO KC, 1981, ELECTRICAL TRANSPORT, P541

← 1 2 →