SPECTROELECTROCHEMICAL INVESTIGATIONS OF NANOCRYSTALLINE ZNO FILMS

被引：91

作者：

HOYER, P ^{[1
]}

EICHBERGER, R ^{[1
]}

WELLER, H ^{[1
]}

机构：

[1] HAHN MEITNER INST BERLIN GMBH,PHOTOCHEM ABT,GLIENICKER STR 100,W-1000 BERLIN 39,GERMANY

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1993年 / 97卷 / 04期

关键词：

COLLOIDS; FLUORESCENCE; PHOTOELECTROCHEMISTRY; SEMICONDUCTORS; SPECTROSCOPY; ULTRAVIOLET;

D O I：

10.1002/bbpc.19930970416

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：

Transparent nanocrystalline ZnO films were prepared from colloidal ZnO solutions containing particles of different sizes. The colloidal solution as well as the films exhibit size quantization effects. The absorption and stationary and time resolved fluorescence of the films as well as the photocurrent strongly depend on the applied potential. The electrochemical and spectroscopic investigations allow direct measurement of the quantum mechanical confinement energy for electrons in the nanocrystalline particles of the films. The optical properties and the charge carrier transport through the films are explained by a model involving electronic levels of the individual particles.

引用

页码：630 / 635

页数：6

共 29 条

[1] ZERO-DIMENSIONAL EXCITONS IN SEMICONDUCTOR CLUSTERS [J].

BRUS, L .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1986, 22 (09) :1909-1914

[2] A SIMPLE-MODEL FOR THE IONIZATION-POTENTIAL, ELECTRON-AFFINITY, AND AQUEOUS REDOX POTENTIALS OF SMALL SEMICONDUCTOR CRYSTALLITES [J].

BRUS, LE .

JOURNAL OF CHEMICAL PHYSICS, 1983, 79 (11) :5566-5571

[3]

BRUS LE, 1986, J PHYS CHEM-US, V86, P2555

[4] ANOMALOUS OPTICAL ABSORPTION LIMIT IN INSB [J].

BURSTEIN, E .

PHYSICAL REVIEW, 1954, 93 (03) :632-633

[5] PHOTOCHEMISTRY OF SEMICONDUCTOR COLLOIDS .36. FLUORESCENCE INVESTIGATIONS ON THE NATURE OF ELECTRON AND HOLE TRAPS IN Q-SIZED COLLOIDAL CDS PARTICLES [J].

EYCHMULLER, A ;

HASSELBARTH, A ;

KATSIKAS, L ;

WELLER, H .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1991, 95 (01) :79-84

[6] PHOTOCHEMISTRY AND RADIATION-CHEMISTRY OF COLLOIDAL SEMICONDUCTORS .23. ELECTRON STORAGE ON ZNO PARTICLES AND SIZE QUANTIZATION [J].

HAASE, M ;

WELLER, H ;

HENGLEIN, A .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (02) :482-487

[7]

HASSELBARTH A, UNPUB J PHYS CHEM

[8] PHOTOCHEMISTRY AND RADIATION-CHEMISTRY OF SEMICONDUCTOR COLLOIDS - REACTION OF THE HYDRATED ELECTRON WITH CDS AND NONLINEAR OPTICAL EFFECTS .16. [J].

HENGLEIN, A ;

KUMAR, A ;

JANATA, E ;

WELLER, H .

CHEMICAL PHYSICS LETTERS, 1986, 132 (02) :133-136

[9] CATALYSIS OF PHOTOCHEMICAL-REACTIONS BY COLLOIDAL SEMICONDUCTORS [J].

HENGLEIN, A .

PURE AND APPLIED CHEMISTRY, 1984, 56 (09) :1215-1224

[10] SMALL-PARTICLE RESEARCH - PHYSICOCHEMICAL PROPERTIES OF EXTREMELY SMALL COLLOIDAL METAL AND SEMICONDUCTOR PARTICLES [J].

HENGLEIN, A .

CHEMICAL REVIEWS, 1989, 89 (08) :1861-1873

← 1 2 3 →