ORGANIC-INORGANIC MOLECULAR-BEAM EPITAXY (O/I-MBE) - FORMATION AND CHARACTERIZATION OF ORDERED PHTHALOCYANINE THIN-FILMS - PHOTOELECTROCHEMICAL PROCESSES

被引：6
作者：
CHAU, LK
CHEN, SY
ARMSTRONG, NR
COLLINS, GE
ENGLAND, CD
WILLIAMS, VS
ANDERSON, ML
SCHUERLEIN, TJ
LEE, PA
NEBESNY, KW
PARKINSON, BA
机构：
[1] COLORADO STATE UNIV, DEPT CHEM, FT COLLINS, CO 80523 USA
[2] UNIV QUEBEC, PHOTOBIOPHYS RES CTR, TROIS RIVIERES, PQ GA9 5H7, CANADA
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1994年 / 252卷
基金：
美国国家科学基金会;
关键词：
PHOTOELECTROCHEMISTRY; EPITAXIAL; PHTHALOCYANINE; MULTILAYERS; EXCITON COUPLING; ULTRATHIN FILMS; METAL DICHALCOGENIDES;
D O I：
10.1080/10587259408038212
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Photoelectrochemical processes are described for epitaxial phthalocyanine thin films on SnS2 single crystal photoelectrodes. Square lattice formation is indicated during the nucleation of the ordered monolayers of the trivalent metal Pc's (e.g. InPc-Cl) and the tetravalent metal Pc's (e.g. VOPc). Multilayer growth leads to packing structures which strongly red-shift (VOPc, InPc-Cl) or blue-shift (AIPc-F) the Q-band photocurrent spectra, in accordance with established models for exciton coupling effects. Quantum yields for photocurrent production versus Pc coverage are consistent with the requirement for exciton diffusion from the point of excitation in the Pc multilayer to the SnS2 interface, where charge injection occurs.
引用
收藏
页码：67 / 77
页数：11
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