ZnO nanoparticles embedded in polymeric matrices

被引:49
作者
Mahamuni, S
Bendre, BS
Leppert, VJ
Smith, CA
Cooke, D
Risbud, SH
Lee, HWH
机构
[1] UNIV CALIF DAVIS,DEPT CHEM ENGN & MAT SCI,DAVIS,CA 95616
[2] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550
来源
NANOSTRUCTURED MATERIALS | 1996年 / 7卷 / 06期
关键词
D O I
10.1016/0965-9773(96)00043-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Highly stable, wurtzite quantum sized ZnO colloids encapsulated in polymers have been synthesized. The particles can be obtained in a powder form and are partially redissolvable in organic media. A shift in the optical absorption spectrum confirms quantum size effects. Stationary fluorescence measurements exhibit excitonic as well as trapped fluorescence. The intensity of trapped fluorescence changes with capping. The time resolved fluorescence measurements indicate considerably short decay times.
引用
收藏
页码:659 / 666
页数:8
相关论文
共 14 条
[1]   PREPARATION AND CHARACTERIZATION OF QUANTUM SIZE ZINC-OXIDE - A DETAILED SPECTROSCOPIC STUDY [J].
BAHNEMANN, DW ;
KORMANN, C ;
HOFFMANN, MR .
JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (14) :3789-3798
[2]   QUANTUM CRYSTALLITES AND NONLINEAR OPTICS [J].
BRUS, L .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1991, 53 (06) :465-474
[3]  
BRUS L, 1990, ACCOUNTS CHEM RES, V23, P183
[4]   ADDITION OF FERROCENE DERIVATIVES TO THE SURFACE OF QUANTUM-CONFINED CADMIUM-SULFIDE CLUSTERS - STEADY-STATE AND TIME-RESOLVED PHOTOPHYSICAL EFFECTS [J].
CHANDLER, RR ;
COFFER, JL ;
ATHERTON, SJ ;
SNOWDEN, PT .
JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (06) :2713-2717
[5]   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
[6]   DETECTION OF SHALLOW ELECTRON TRAPS IN QUANTUM SIZED CDS BY FLUORESCENCE QUENCHING EXPERIMENTS [J].
HASSELBARTH, A ;
EYCHMULLER, A ;
WELLER, H .
CHEMICAL PHYSICS LETTERS, 1993, 203 (2-3) :271-276
[8]  
HOTCHANDANI S, 1992, J PHYS CHEM-US, V96, P6835
[9]   SPECTROELECTROCHEMICAL INVESTIGATIONS OF NANOCRYSTALLINE ZNO FILMS [J].
HOYER, P ;
EICHBERGER, R ;
WELLER, H .
BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1993, 97 (04) :630-635
[10]   PHOTOPHYSICS AND PHOTOCHEMISTRY OF QUANTIZED ZNO COLLOIDS [J].
KAMAT, PV ;
PATRICK, B .
JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (16) :6829-6834