Fabrication of CdS Micropatterns: Effects of Intermolecular Hydrogen Bonding and Decreasing Capping Ligand
2004 (English)In: Crystal Growth & Design, ISSN 1528-7483, E-ISSN 1528-7505, Vol. 4, no 2, 355-359 p.Article in journal (Refereed) Published
Novel branch-like CdS micropatterns were synthesized using thiosemicarbazide (NH2NHCSNH2) both as a sulfur source and as a capping ligand in a methanol/water system. The thiosemicarbazide/CdCl2 ratios were found to effectively play crucial roles in the morphologies of CdS crystals. With the ratios decreasing from eight to one, the CdS crystals exhibited different morphologies, from spheres to spindle-like morphologies mediated by cauliflower- and branch-like micropatterns. Control experiments using different sulfur sources showed that the NH2 groups, which could form hydrogen bonds, were necessary for the formation of the novel branch-like patterns. On the basis of the experimental results, a formation mechanism was proposed, which was supported by time-resolved experiments and IR analysis.
Place, publisher, year, edition, pages
American Chemical Society (ACS), 2004. Vol. 4, no 2, 355-359 p.
IdentifiersURN: urn:nbn:se:liu:diva-90624DOI: 10.1021/cg0341555OAI: oai:DiVA.org:liu-90624DiVA: diva2:613922