Development of metal sulfide-poly (3-octylthiophene) composite LB multilayers
نویسنده
چکیده
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.
منابع مشابه
Molecular packing in CdS containing conducting polymer composite LB multilayers
Langmuir–Blodgett (LB) technique has been used to deposit composite multilayers of poly (3-octylthiophene)-cadmium arachidate (POT-CdA) and polyaniline-cadmium arachidate (PANI-CdA). These were used as precursors to develop semiconducting CdS nanoclusters within the conducting polymer based multilayers. The presence of CdS in the multilayers was determined by Fourier transform infrared spectros...
متن کاملThe Electronic Behavior of Poly(3-octylthiophene) Electrochemically Synthesized onto Au Substrate
We investigate the electronic characteristics and the absorption spectra of poly(3-octylthiophene), POT, films grown by electrochemical methods onto Au substrates. We discuss the results considering the morphological factor. POT films thickness can be controlled by current density in the electropolymerization process. The film roughness depends on the thickness, being about 12% of film thicknes...
متن کاملSynthesis, characterization and thermal study of poly (methyl methacrylate)-Co3O4 nanocomposite film
Nanosized metal oxides dispersed polymer composites constitute a fascinating class of polymer composite materials. Synthesis of such composite materials through solvent casting enhances the polymer synthetic technology. Solvent casting method was used to prepare Cobalt oxide (Co3O4) dispersed Poly (methyl methacrylate) (PMMA) nano composite<span style="text-decoration: und...
متن کاملSynthesis, characterization and thermal study of poly (methyl methacrylate)-Co3O4 nanocomposite film
Nanosized metal oxides dispersed polymer composites constitute a fascinating class of polymer composite materials. Synthesis of such composite materials through solvent casting enhances the polymer synthetic technology. Solvent casting method was used to prepare Cobalt oxide (Co3O4) dispersed Poly (methyl methacrylate) (PMMA) nano composite<span style="text-decoration: und...
متن کاملMetal chalcogenide nanoparticle gel networks: their formation mechanism and application for novel material generation and heavy metal remediation via cation exchange reactions
METAL CHALCOGENIDE NANOPARTICLE GEL NETWORKS: THEIRFROMATION MECHANISM AND APPLICATION FOR NOVEL MATERIALGENERATION AND HEAVY METAL REMEDIATION VIA CATIONEXCHANGE REACTIONSby IRINA R. PALAMay 2012Advisor: Dr. Stephanie L. BrockMajor: ChemistryDegree: Doctor of PhilosophyThe dissertation research is focused on (1) uncovering the mechanism of metalchalc...
متن کامل