Title :
Nanocrystalline CuInS/sub 2/ and CuInSe/sub 2/ via low-temperature pyrolysis of single-source molecular precursors
Author :
Castro, Stephanie L. ; Bailey, Sheila G. ; Raffaelle, Ryne P. ; Banger, Kulbinder K. ; Fahey, Stephen ; Hepp, Aloysius F.
Author_Institution :
Ohio Aerosp. Inst., Cleveland, OH, USA
Abstract :
Nanometer sized particles of the chalcopyrite compounds CuInS/sub 2/ and CuInSe/sub 2/ were synthesized by thermal decomposition of the molecular single-source precursors (PPh/sub 3/)/sub 2/CuIn(SEt)/sub 4/ and (PPh/sub 3/)/sub 2/CuIn(SePh)/sub 4/, respectively, in a non-coordinating solvent at temperatures below 300/spl deg/C. The nanoparticles range in size from 3-30 nm and are aggregated to form roughly spherical clusters of about 500 nm in diameter and can be deaggregated by capping with thiolated ligands. The nanoparticles are characterized by powder X-ray diffraction, scanning and tunneling electron microscopies, and optical spectroscopy.
Keywords :
X-ray diffraction; copper compounds; indium compounds; nanoparticles; particle size; pyrolysis; scanning electron microscopy; ternary semiconductors; 3 to 30 nm; 500 nm; CuInS/sub 2/; CuInSe/sub 2/; X-ray diffraction; chalcopyrite compounds; nanocrystalline materials; nanometer sized particle; nanoparticle; noncoordinating solvent; optical spectroscopy; pyrolysis; scanning electron microscopy; spherical cluster; thermal decomposition; thiolated ligand; tunneling electron microscopy;
Conference_Titel :
Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on
Print_ISBN :
4-9901816-0-3
