TY - GEN
T1 - A study of the nucleation and growth of silver nanowires on titanium dioxide
AU - Chen, Hung Tao
AU - Tung, Hsien Tse
AU - Song, Jenn Ming
AU - Chen, In-Gann
AU - Lee, Hsin Yu
PY - 2011/12/1
Y1 - 2011/12/1
N2 - Silver nanowire (Ag NWs) have been successfully synthesized by thermally assisted photoreduction (TAP) of aqueous silver nitrate (AgNO 3) solution on titanium dioxide (TiO 2) films [1]. Nevertheless, the nucleation and nucleation and growth of the Ag NWs on TiO 2 substrate were monitored in detail by in-situ synchrotron radiation x-ray diffraction (SR-XRD). As-annealed TiO 2 film, followed by heating from 60 to 300°C, shows strong in-situ SR-XRD ratios of Ag(220)/Ag(200) spectra, indicating the preferred growth direction of NWs toward <220>. The nano-Auger electron spectrum (AES) demonstrates that silver nano-particles could was locally at room temperature on as-annealed TiO 2, which was partially excited by blackbody radiation. These Ag clusters will act as nucleation site for Ag NWs. It implies that the homogeneity and amount of electrons on the TiO 2 surface and the accumulative direction of Ag atoms are the key points for Ag Nws synthesis.
AB - Silver nanowire (Ag NWs) have been successfully synthesized by thermally assisted photoreduction (TAP) of aqueous silver nitrate (AgNO 3) solution on titanium dioxide (TiO 2) films [1]. Nevertheless, the nucleation and nucleation and growth of the Ag NWs on TiO 2 substrate were monitored in detail by in-situ synchrotron radiation x-ray diffraction (SR-XRD). As-annealed TiO 2 film, followed by heating from 60 to 300°C, shows strong in-situ SR-XRD ratios of Ag(220)/Ag(200) spectra, indicating the preferred growth direction of NWs toward <220>. The nano-Auger electron spectrum (AES) demonstrates that silver nano-particles could was locally at room temperature on as-annealed TiO 2, which was partially excited by blackbody radiation. These Ag clusters will act as nucleation site for Ag NWs. It implies that the homogeneity and amount of electrons on the TiO 2 surface and the accumulative direction of Ag atoms are the key points for Ag Nws synthesis.
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U2 - 10.1109/NANO.2011.6144357
DO - 10.1109/NANO.2011.6144357
M3 - Conference contribution
AN - SCOPUS:84858953103
SN - 9781457715143
T3 - Proceedings of the IEEE Conference on Nanotechnology
SP - 1080
EP - 1083
BT - 2011 11th IEEE International Conference on Nanotechnology, NANO 2011
T2 - 2011 11th IEEE International Conference on Nanotechnology, NANO 2011
Y2 - 15 August 2011 through 19 August 2011
ER -