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Development of metal sulfide-poly (3-octylthiophene) composite LB multilayers

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Title Development of metal sulfide-poly (3-octylthiophene) composite LB multilayers
 
Creator VIDYA, V
AMBILY, S
NARANG, SN
MAJOR, SS
TALWAR, SS
 
Subject composite materials
electroluminescence
langmuir blodgett films
x-ray analysis
 
Description Langmuir–Blodgett (LB) technique has been used to deposit composite multilayers of poly(3-octylthiophene) with cadmium arachidate (POT-CdA), zinc arachidate (POT-ZnA) and copper arachidate (POT-CuA). These composite multilayers were used as precursors to develop the respective semiconducting CdS, ZnS and Cu2S nanoclusters in the POT-arachidic acid (POT-AA) matrix. The formation of sulphide nanoclusters in the multilayer was determined by FTIR and UV-Vis spectroscopy. X-ray reflectivity measurements showed a drastic reduction in the layered structural order on sulphide formation. Single layer LED structures were fabricated using POT-CdA, CdS-POT-AA and ZnS-POT-AA composites as active layers. The Electoluminescence peaks from these structures are attributed to POT and nanoclusters of CdS and ZnS, respectively. The electroluminescent devices with nanoclusters containing emitter layers exhibited low turn-on voltage ~5 V. Blue electroluminescence was observed at room temperature from FTO/ZnS-POT-AA/Al devices.
 
Publisher Elsevier
 
Date 2009-03-19T05:10:38Z
2011-11-25T19:27:48Z
2011-12-26T13:07:28Z
2011-12-27T05:55:30Z
2009-03-19T05:10:38Z
2011-11-25T19:27:48Z
2011-12-26T13:07:28Z
2011-12-27T05:55:30Z
2002
 
Type Article
 
Identifier Colloids and Surfaces A: Physicochemical and Engineering Aspects 198-200, 383-388
0927-7757
http://dx.doi.org/10.1016/S0927-7757(01)00984-0
http://hdl.handle.net/10054/983
http://dspace.library.iitb.ac.in/xmlui/handle/10054/983
 
Language en