Time-of-flight measurement of hole mobility in aluminum (III) complexes

被引:29
作者
Naka, S
Okada, H
Onnagawa, H
Kido, J
Tsutsui, T
机构
[1] Toyama Univ, Dept Elect & Elect Engn, Toyama 9308555, Japan
[2] Yamagata Univ, Grad Sch Engn, Yonezawa, Yamagata 9928510, Japan
[3] Kyushu Univ, Grad Sch Engn Sci, Dept Appl Sci Elect & Mat, Kasuga, Fukuoka 8168580, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1999年 / 38卷 / 11A期
关键词
time-of-flight; aluminum complex; charge transport; hole mobility; nondispersive;
D O I
10.1143/JJAP.38.L1252
中图分类号
O59 [应用物理学];
学科分类号
摘要
We measured hole drift mobility in vacuum-deposited films of aluminum (III) complexes, tris (8-quinolinolato) aluminum (III) (Alq(3)), tris (8-phenanthridinolato) aluminum (III) (Alph(3)) and tris (4-methyl-8-quinolinolato) aluminum (III) (Almq(3)), using a time-of-flight technique. Hole transport was nondispersive far Alq(3) and dispersive for Alph(3) and Almq(3). The hole mobilities of these aluminum complexes were of the order of 10(-10)-10(-8) cm(2)/V.s and were largely dependent on the electric field.
引用
收藏
页码:L1252 / L1254
页数:3
相关论文
共 19 条
[1]   ANALYSIS OF THE DISPERSIVE CHARGE TRANSPORT IN VITREOUS 0.55 AS2S3-0.45 SB2S3 [J].
ARKHIPOV, VI ;
IOVU, MS ;
RUDENKO, AI ;
SHUTOV, SD .
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1979, 54 (01) :67-77
[2]   Schottky energy barriers and charge injection in metal/Alq/metal structures [J].
Campbell, IH ;
Smith, DL .
APPLIED PHYSICS LETTERS, 1999, 74 (04) :561-563
[3]  
GILL WD, 1972, J APPL PHYS, V43, P5033, DOI 10.1063/1.1661065
[4]   TRANSIENT-BEHAVIOR OF ORGANIC THIN-FILM ELECTROLUMINESCENCE [J].
HOSOKAWA, C ;
TOKAILIN, H ;
HIGASHI, H ;
KUSUMOTO, T .
APPLIED PHYSICS LETTERS, 1992, 60 (10) :1220-1222
[5]   ELECTRON AND HOLE MOBILITY IN TRIS(8-HYDROXYQUINALINOLATO-N1,O8) ALUMINUM [J].
KEPLER, RG ;
BEESON, PM ;
JACOBS, SJ ;
ANDERSON, RA ;
SINCLAIR, MB ;
VALENCIA, VS ;
CAHILL, PA .
APPLIED PHYSICS LETTERS, 1995, 66 (26) :3618-3620
[6]   Fabrication of highly efficient organic electroluminescent devices [J].
Kido, J ;
Iizumi, Y .
APPLIED PHYSICS LETTERS, 1998, 73 (19) :2721-2723
[7]   Efficient electroluminescence from tris(4-methyl-8-quinolinolato)aluminum(III) [J].
Kido, J ;
Iizumi, Y .
CHEMISTRY LETTERS, 1997, (10) :963-964
[8]   A novel electroluminescent metal complex: Tris(4-phenanthridinolato)aluminum(III) [J].
Kido, J ;
Endo, J .
CHEMISTRY LETTERS, 1997, (07) :593-594
[9]   Charge carrier mobility in poly(p-phenylenevinylene) studied by the time-of-flight technique [J].
Lebedev, E ;
Dittrich, T ;
PetrovaKoch, V ;
Karg, S ;
Brutting, W .
APPLIED PHYSICS LETTERS, 1997, 71 (18) :2686-2688
[10]   Hole injection and transport in tris-(8-hydroxyquinolinato) aluminum [J].
Lin, LB ;
Jenekhe, SA ;
Young, RH ;
Borsenberger, PM .
APPLIED PHYSICS LETTERS, 1997, 70 (15) :2052-2054