Soft chemistry has emerged as an important means of generating nanocrystals, nanowires and other nanostructures of semiconducting materials. We describe the synthesis of CdS and other metal chalcogenide nanocrystals by a solvothermal route. We also describe the synthesis of nanocrystals of AlN, GaN and InN by the reaction of hexamethyldisilazane with the corresponding metal chloride or metal cupferronate under solvothermal conditions. Nanowires of Se and Te have been obtained by a self-seeding solution-based method. A single source precursor based on urea complexes of metal chlorides gives rise to metal nitride nanocrystals, nanowires and nanotubes. The liquidliquid interface provides an excellent medium for preparing single-crystalline films of metal chalcogenides.
KeywordsSoft-chemical route semiconductor nanocrystal solvothermal liquid-liquid interface
PACS Nos81.16.-c 81.07.-b 81.07.Bc
- The chemistry of nanomaterials edited by C N R Rao, A Mueller and A K Cheetham (Wiley-VCH, Weinheim, 2004)Google Scholar
- C N R Rao and M Nath,Dalton Trans. 1 (2003)Google Scholar
- U K Gautam, M Rajamathi, F Meldrum, P Morgan and R Seshadri,Chem. Commun. 629 (2001)Google Scholar
- Selenium edited by R A Zingaro and W C Cooper (Van Nostrand Reinhold, New York, 1974)Google Scholar
- M Nath, A Choudhury and C N R Rao,Chem. Commun. 2698 (2004)Google Scholar