Measurement of the energy gap in semiconducting polymers using the light-emitting electrochemical cell

被引：59

作者：

Yu, G

Yang, Y

Cao, Y

Pei, Q

Zhang, C

Heeger, AJ

机构：

[1] UNIAX Corporation, Santa Barbara, CA 93117

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 259卷 / 3-4期

关键词：

D O I：

10.1016/0009-2614(96)00768-3

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：

The light-emitting electrochemical cell (LEC) is used to measure the charge injection energy gap in semiconducting polymers. Simultaneous measurements of the onset of electrochemical doping, electrical injection, and electroluminescence from light-emitting electrochemical cells determine the magnitude of the exciton binding energy; the LEC data are consistent with the semiconductor model in which the exciton binding energy is small.

引用

收藏

页码：465 / 468

页数：4

相关论文

共 25 条

[1] EXCITON VERSUS BAND DESCRIPTION OF THE ABSORPTION, LUMINESCENCE AND ELECTROABSORPTION OF POLY(PHENYLPHENYLENEVINYLENE) AND POLY(DODECYLTHIOPHENE) [J].

BASSLER, H ;

GAILBERGER, M ;

MAHRT, RF ;

OBERSKI, JM ;

WEISER, G .

SYNTHETIC METALS, 1992, 49 (1-3) :341-352

[2] Direct measurement of conjugated polymer electronic excitation energies using metal/polymer/metal structures [J].

Campbell, IH ;

Hagler, TW ;

Smith, DL ;

Ferraris, JP .

PHYSICAL REVIEW LETTERS, 1996, 76 (11) :1900-1903

[3] PHOTOCONDUCTION IN POLYDIACETYLENE SINGLE-CRYSTALS [J].

CHANCE, RR ;

BAUGHMAN, RH .

JOURNAL OF CHEMICAL PHYSICS, 1976, 64 (09) :3889-3890

[4] EXCITONS AND THE BAND-GAP IN POLY(PHENYLENE VINYLENE) [J].

DACOSTA, PG ;

CONWELL, EM .

PHYSICAL REVIEW B, 1993, 48 (03) :1993-1996

[5] THE ELECTRONIC AND ELECTROCHEMICAL PROPERTIES OF POLY(PHENYLENE VINYLENES) AND POLY(THIENYLENE VINYLENES) - AN EXPERIMENTAL AND THEORETICAL-STUDY [J].

ECKHARDT, H ;

SHACKLETTE, LW ;

JEN, KY ;

ELSENBAUMER, RL .

JOURNAL OF CHEMICAL PHYSICS, 1989, 91 (02) :1303-1315

[6] POLARON-PAIR GENERATION IN POLY(PHENYLENE VINYLENES) [J].

FRANKEVICH, EL ;

LYMAREV, AA ;

SOKOLIK, I ;

KARASZ, FE ;

BLUMSTENGEL, S ;

BAUGHMAN, RH ;

HORHOLD, HH .

PHYSICAL REVIEW B, 1992, 46 (15) :9320-9324

[7] DC AND TRANSIENT PHOTOCONDUCTIVITY OF POLY(2-PHENYL-1,4-PHENYLENEVINYLENE) [J].

GAILBERGER, M ;

BASSLER, H .

PHYSICAL REVIEW B, 1991, 44 (16) :8643-8651

[8] ENHANCED ORDER AND ELECTRONIC DELOCALIZATION IN CONJUGATED POLYMERS ORIENTED BY GEL PROCESSING IN POLYETHYLENE [J].

HAGLER, TW ;

PAKBAZ, K ;

VOSS, KF ;

HEEGER, AJ .

PHYSICAL REVIEW B, 1991, 44 (16) :8652-8666

[9] POLARIZED-ELECTROABSORPTION SPECTROSCOPY OF A SOLUBLE DERIVATIVE OF POLY(P-PHENYLENEVINYLENE) ORIENTED BY GEL PROCESSING IN POLYETHYLENE - POLARIZATION ANISOTROPY, THE OFF-AXIS DIPOLE-MOMENT, AND EXCITED-STATE DELOCALIZATION [J].

HAGLER, TW ;

PAKBAZ, K ;

HEEGER, AJ .

PHYSICAL REVIEW B, 1994, 49 (16) :10968-10975

[10] POLARIZED ELECTROABSORPTION SPECTROSCOPY OF HIGHLY ORDERED POLY(2-METHOXY, 5-(2'-ETHYL-HEXOXY)-P-PHENYLENE VINYLENE) [J].

HAGLER, TW ;

PAKBAZ, K ;

HEEGER, AJ .

PHYSICAL REVIEW B, 1995, 51 (20) :14199-14206