Dramatic photoluminescence quenching of phenylene vinylene oligomer thin films upon submonolayer Ca deposition

被引：119
|
作者：
Choong, V
Park, Y
Gao, Y
Wehrmeister, T
Mullen, K
Hsieh, BR
Tang, CW
机构：
[1] MAX PLANCK INST POLYMER RES, D-55128 MAINZ, GERMANY
[2] XEROX CORP, WILSON CTR RES & TECHNOL, WEBSTER, NY 14580 USA
[3] EASTMAN KODAK CO, IMAGING RES & ADV DEV, ROCHESTER, NY 14650 USA
来源：
APPLIED PHYSICS LETTERS | 1996年 / 69卷 / 10期
关键词：
D O I：
10.1063/1.116918
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report that Ca atoms severely quench the photoluminescence (PL) of an organic thin film 1,4-bis[4-(3,5-di-tert-butylstyryl) stryyl]benzene (4PV). A submonolayer coverage (0.035 monolayer or 0.1 Angstrom) of Ca on the 4PV surface reduced the PL of a 300 Angstrom layer of 4PV by as much as 50%. Three distinct quenching rates were observed throughout the 200 Angstrom Ca deposition. An exciton diffusion length of 200 Angstrom in 4PV is estimated assuming that the PL quenching is diffusion controlled. (C) 1996 American Institute of Physics.
引用
收藏
页码：1492 / 1494
页数：3
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