Solution-processed small molecule/copper indium sulfide hybrid solar cells

Solution processable small molecules are an alternative to conjugated polymers in organic photovoltaics and have recently been in the focus of intense research. In this work, organic–inorganic hybrid solar cells with active layers consisting of the solution-processable small-molecule p-DTS(FBTTh2)2...

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Bibliographic Details
Published in:Solar energy materials and solar cells 2013-07, Vol.114, p.38-42
Main Authors: Rath, Thomas, Kaltenhauser, Verena, Haas, Wernfried, Reichmann, Angelika, Hofer, Ferdinand, Trimmel, Gregor
Format: Article
Language:English
Subjects:
Applied sciences
COMPOSITES
Copper
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Energy
Exact sciences and technology
In situ preparation
Indium sulfides
MICROSTRUCTURES
Nanocomposite
Nanocomposites
Nanoparticle
Nanoparticles
Nanostructure
Natural energy
OPV
Organic photovoltaics
PARTICLES
Photoelectric conversion
Photovoltaic cells
Photovoltaic conversion
Solar cells
Solar cells. Photoelectrochemical cells
Solar energy
Spectra
SULFIDES
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Summary:Solution processable small molecules are an alternative to conjugated polymers in organic photovoltaics and have recently been in the focus of intense research. In this work, organic–inorganic hybrid solar cells with active layers consisting of the solution-processable small-molecule p-DTS(FBTTh2)2 and copper indium sulfide nanoparticles are presented. The copper indium sulfide nanoparticles are formed in situ directly in the small molecule matrix from metal xanthate precursors. The prepared nanocomposite small molecule/copper indium sulfide films are very smooth, highlighting the good compatibility of p-DTS(FBTTh2)2 with the in situ preparation of metal sulfide nanoparticles. The formed nanoparticles have diameters of about 3nm. Hybrid solar cells, exhibiting power conversion efficiencies of 1.3%, are characterized by IV curves, EQE spectra and electron microscopy. [Display omitted] ► p-DTS(FBTTh2)2/copper indium sulfide hybrid solar cells were prepared. ► Power conversion efficiencies of 1.3% were achieved. ► Active layers were prepared via an in situ route using metal xanthate precursors. ► Nanocomposite layers are homogeneous and contain nanoparticles with a size of 3nm.
ISSN:0927-0248
1879-3398
DOI:10.1016/j.solmat.2013.02.024