Synthesis of thiol modified CdSe nanoparticles/P3HT blends for hybrid solar cell structures

Thioglycolic acid (TGA) capped cadmium selenide (CdSe) nanoparticles were synthesised in aqueous medium through wet chemical method using sodium selenite as the selenium source. The synthesised particles were transformed into organic medium using 1-dodecanethiol through efficient partial ligand exch...

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Bibliographic Details
Published in:Materials science in semiconductor processing 2014-06, Vol.22, p.44-49
Main Authors: Ananthakumar, S., Ramkumar, J., Moorthy Babu, S.
Format: Article
Language:English
Subjects:
Applied sciences
Blends
Cadmium selenides
CdSe nanoparticles
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Electronics
Energy
Exact sciences and technology
Hybrid solar cell
Intermetallics
Materials science
Nanoparticles
Nanopowders
Nanoscale materials and structures: fabrication and characterization
Natural energy
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optoelectronic devices
Phase transfer
Photoluminescence
Photovoltaic conversion
Physics
Polymer blends
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Semiconductors
Sodium
Solar cells. Photoelectrochemical cells
Solar energy
Spectra
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Summary:Thioglycolic acid (TGA) capped cadmium selenide (CdSe) nanoparticles were synthesised in aqueous medium through wet chemical method using sodium selenite as the selenium source. The synthesised particles were transformed into organic medium using 1-dodecanethiol through efficient partial ligand exchange strategy. The UV–visible spectra recorded for the particles reveal the size distribution in water as well as in organic solvent. TEM analysis of the synthesised particles shows the size and the nature of distribution of the particles in solution. The phase transferred particles were blended with the polymer poly-3-hexyl thiophene (P3HT) in chloroform. UV–visible and photoluminescence spectra of the polymer with various volumes of the nanoparticles clearly indicate the effective coupling and the efficient charge transfer process in the blend. SEM analysis of the CdSe–P3HT blends confirms the effective distribution of the nanoparticles in the polymeric matrix. AFM studies reveal the morphology of the nanoparticles and the phase separation process in the blends.
ISSN:1369-8001
1873-4081
DOI:10.1016/j.mssp.2014.02.008