ELECTROMODULATED ABSORPTION-SPECTROSCOPY OF CHARGE-CARRIERS IN ALPHA-SEXITHIOPHENE THIN-FILMS

被引：17
|
作者：
CHARRA, F [1 ]
LAVIE, MP [1 ]
LORIN, A [1 ]
FICHOU, D [1 ]
机构：
[1] CNRS,UPR 241,MAT MOLEC LAB,F-94320 THIAIS,FRANCE
来源：
SYNTHETIC METALS | 1994年 / 65卷 / 01期
关键词：
SPECTROSCOPY; SEXITHIOPHENE; FILMS;
D O I：
10.1016/0379-6779(94)90287-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have realized two types of metal-insulator-semiconductor devices with alpha-sexithiophene as the semiconductor: one with a polymeric insulator and one with a mineral one. Both electromodulated absorption spectra present a sharp peak at 1.50 eV, corresponding to an absorption cross section of 4 X 10(-17) cm2 per injected charge (epsilon = 10(4) 1 mol-1 cm-1). By comparison with chemical-doping experiments we show that, in both devices, the charges are stored as radical cations (model polarons). The quantitative results are discussed with the help of a precise optical model of the multilayer structure.
引用
收藏
页码：13 / 17
页数：5
相关论文
共 50 条
  • [41] PHYSICOCHEMICAL CHARACTERIZATION BY MEANS OF IR ABSORPTION-SPECTROSCOPY OF SI3N4 THIN-FILMS OBTAINED BY CHEMICAL-VAPOR-DEPOSITION ASSISTED BY IN-SITU ELECTRICAL-DISCHARGE
    BALLAND, B
    BUREAU, JC
    BOTTON, R
    GLACHANT, A
    LEMITI, M
    [J]. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1993, 20 (1-2): : 153 - 156
  • [42] INFLUENCE OF THE ELECTROLYTIC MEDIUM COMPOSITION ON THE STRUCTURAL EVOLUTION OF THIN ELECTROCHROMIC MOLYBDENUM TRIOXIDE FILMS PROBED BY X-RAY ABSORPTION-SPECTROSCOPY
    GUAY, D
    TOURILLON, G
    LAPERRIERE, G
    BELANGER, D
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1992, 204 : 180 - COLL
  • [43] HIGH-FIELD ABSORPTION CURRENT AND SPACE-CHARGE MEASUREMENTS ON THIN-FILMS OF AS2S3
    FAROOQ, MU
    HIRSCH, J
    [J]. SOLID STATE COMMUNICATIONS, 1974, 15 (08) : 1417 - 1419
  • [44] INSITU INFRARED-ABSORPTION SPECTROSCOPY ON THE THERMAL-DECOMPOSITION PROCESS OF MOCVD SOURCE GASES FOR YBCO THIN-FILMS
    HANAOKA, K
    OHNISHI, H
    HARIMA, H
    TACHIBANA, K
    [J]. PHYSICA C, 1991, 190 (1-2): : 145 - 147
  • [45] Identifying barriers to charge-carriers in the bulk and surface regions of Cu2ZnSnS4 nanocrystal films by x-ray absorption fine structures (XAFSs)
    Turnbull, Matthew J.
    Vaccarello, Daniel
    Yiu, Yun Mui
    Sham, Tsun-Kong
    Ding, Zhifeng
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2016, 145 (20):
  • [46] INFLUENCE OF THE ELECTROLYTIC MEDIUM COMPOSITION ON THE STRUCTURAL EVOLUTION OF THIN ELECTROCHROMIC MOO3 FILMS PROBED BY X-RAY ABSORPTION-SPECTROSCOPY
    GUAY, D
    TOURILLON, G
    LAPERRIERE, G
    BELANGER, D
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (19): : 7718 - 7724
  • [47] QUANTITATIVE-EVALUATION OF MOLECULAR-ORIENTATION IN THIN LANGMUIR-BLODGETT FILMS BY FT-IR TRANSMISSION AND REFLECTION ABSORPTION-SPECTROSCOPY
    UMEMURA, J
    KAMATA, T
    KAWAI, T
    TAKENAKA, T
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (01): : 62 - 67
  • [48] APPLICATION OF X-RAY-ABSORPTION SPECTROSCOPY TO THE STRUCTURAL CHARACTERIZATION OF MONODISPERSED BENZOTRIAZOLE COATINGS ON PARTLY OXIDIZED COPPER THIN-FILMS
    PIZZINI, S
    ROBERTS, KJ
    DRING, IS
    OLDMAN, RJ
    CUPERTINO, DC
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 1993, 3 (08) : 811 - 819
  • [49] FOURIER-TRANSFORM INFRARED REFLECTION-ABSORPTION SPECTROSCOPY OF MONOLAYERS AND THIN-FILMS ADSORBED ON LOW-AREA SURFACES
    GOLDEN, WG
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1984, 188 (AUG): : 88 - POLY
  • [50] EFFECT OF HYDROGEN ABSORPTION ON ELECTRICAL-RESISTANCE AND HALL-EFFECT CHARGE CARRIER CONCENTRATION IN FETI, FETISZ, TINI AND TINISEZ THIN-FILMS
    SINGH, M
    VIJAY, YK
    JAIN, IP
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1992, 17 (01) : 29 - 35
12345