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

• Published in: Solar energy materials and solar cells Vol. 114; pp. 38 - 42
• Main Authors: Rath, Thomas, Kaltenhauser, Verena, Haas, Wernfried, Reichmann, Angelika, Hofer, Ferdinand, Trimmel, Gregor
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.07.2013; Elsevier
• 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; Nanocomposite; Organic photovoltaics; OPV; Nanoparticle; In situ preparation; Voltage current curve; Conversion rate; In situ; Active layer; Organic solar cells; Electron microscopy; Metal particle; Solar cell; Conjugated polymer; Organic-inorganic hybrid materials; Energy conversion; Solar energy; Copper sulfide; Small molecule; Compatibility; Indium sulfide; Nanostructured materials; Growth from solution
• ISSN: 0927-0248; 1879-3398
• DOI: 10.1016/j.solmat.2013.02.024

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.