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Surface Modification of CdS Colloids with Mercaptoethylamine
Author(s) -
Kamat Prashant V.,
de Lind van Wijngaarden Michael,
Hotchandani Surat
Publication year - 1993
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.199300008
Subject(s) - chemistry , colloid , acetonitrile , surface modification , yield (engineering) , quantum yield , trapping , semiconductor , chemical engineering , nanotechnology , fluorescence , chromatography , optics , optoelectronics , composite material , materials science , ecology , physics , biology , engineering
Surface modification as well as size control of CdS colloids in acetonitrile has been achieved with mercaptoethylamine (MEA). The CdS emission yield increases as it interacts with the surface modifier. A decrease in the hole‐trapping yield was observed in optically excited CdS colloids which were modified with MEA. Use of such surface modifiers in bridging a semiconductor colloid with a gold colloid has also been demonstrated.