Browsing by Author "Hsia, CH"

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In situ generation of the silica shell layer - Key factor to the simple high yield synthesis of silver nanowires
(2003-08-20)
Hsia, CH
;
Yen, MY
;
Lin, CC
;
Chiu, HT
;
Lee, CY
Polydimethylsiloxane soft template assisted synthesis of silver nanoparticles via vapor-solid reaction growth
(2004-04-01)
Hsia, CH
;
Yen, MY
;
Chiu, HT
;
Lee, CY
;
應用化學系
A new route to synthesize silver nanoparticles via vapor-solid reaction growth (VSRG) is reported. Employing AgCl to react with (Me3Si)(4)Si in a scaled tube (433-673 K) generates silver particles (diameter greater than or equal to 10 mum). Addition of polydimethylsiloxnae (PDMS) to the reaction dramatically reduces the particle size (diameter 60-1200 nm). Moreover, formation of silver nanorods and nanocubes was discovered in some reaction conditions. Adding PDMS and varying the reaction temperature were the key factors influencing the Ag particle size.
Synthesis of cable-like copper nanowires
(2003-02-05)
Yen, MY
;
Chiu, CW
;
Hsia, CH
;
Chen, R
;
Kai, JJ
Cable-like copper nanowires (1-10 mum in length and 15-80 nm in diameter) with an insulating poly(dimethylsiloxane) (PDMS) sheath (510 nm in thickness, see Figure) have been successfully synthesized by a solvent-free reaction between CuCl and (Me3Si)(4)Si in the presence of PDMS in sealed tubes. The wire formation mechanism is proposed to be vapor-solid reaction growth.