Paiman, SuriatiGao, QiangJagadish, ChennupatiPemasiri, KurananandaMontazeri, MohammadJackson, Howard ESmith, Leigh MYarrison-Rice, Jan MZhang, XinZou, JinTan, Hark Hoe2015-12-100957-4484http://hdl.handle.net/1885/59812InP nanowires were grown on (111)B InP substrates by metal-organic chemical vapour deposition in the presence of colloidal gold particles as catalysts. Transmission electron microscopy and photoluminescence measurements were carried out to investigate the effects of V/III ratio and nanowire diameter on structural and optical properties. Results show that InP nanowires grow preferably in the wurtzite crystal structure than the zinc blende crystal structure with increasing V/III ratio or decreasing diameter. Additionally, time-resolved photoluminescence (TRPL) studies have revealed that wurtzite nanowires show longer recombination lifetimes of ∼2500ps with notably higher quantum efficiencies.Keywords: Catalyst particle size; Chemical vapour deposition; Colloidal gold particles; InP; InP substrates; Photoluminescence measurements; Recombination lifetime; Structural and optical properties; Time-resolved photoluminescence; V/III ratio; Wurtzite; Wurtzite200910.1088/0957-4484/20/22/2256062016-02-24