Tuning Surface Wettability of InxGa(1-x)N Nanotip Arrays by Phosphonic Acid Modification and Photoillumination

CORC > 苏州纳米技术与纳米仿生研究所 > 中国科学院苏州纳米技术与纳米仿生研究所 > 纳米生物医学与安全研究部 > 程国胜团队

	Tuning Surface Wettability of InxGa(1-x)N Nanotip Arrays by Phosphonic Acid Modification and Photoillumination
	Cheng, GS (程国胜); Su, RG (苏瑞巩); Song, Q (宋琴); Cheng, GS (程国胜); Kong, T (孔涛)
刊名	LANGMUIR
	2011-11-01
卷号	27 期号:21 页码:13220-13225
通讯作者	Cheng, GS (程国胜)
英文摘要	We report a facile route to reversibly tune surface wettability of InxGa((1-x))N (InGaN) nanotip arrays by octyl-phosphonic acid (OPA) modification and ultraviolet-visible (UV-vis) light illuminations. Well aligned InGaN nanotip arrays were grown by chemical vapor deposition (CVD). OPA was covalently attached to the InGaN nanotip surface, which was initially oxidized in Piranha solution. Because of the high surface energy of polar groups, OPA-coated InGaN nanotip arrays demonstrated superhydrophobic properties (contact angle of 154 degrees). Transitions between superhydrophobicity and hydrophilicity were obtained through OPA adsorption and UV-vis light illumination. The LnGaN nanotip surface chemistry was further characterized by X-ray photoelectron spectroscopy (XPS), which suggested a scission mechanism at P-C and MO-P (M = In and Ga) bonds of bound OPA molecules. Meanwhile, no significant surface degradation was observed after the OPA modification and phototreatments.
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000296211800057
公开日期	2012-07-25
内容类型	期刊论文
源URL	[http://58.210.77.100/handle/332007/516]
专题	苏州纳米技术与纳米仿生研究所_纳米生物医学与安全研究部_程国胜团队
通讯作者	Cheng, GS (程国胜); Cheng, GS (程国胜)
推荐引用方式 GB/T 7714	Cheng, GS ,Su, RG ,Song, Q ,et al. Tuning Surface Wettability of InxGa(1-x)N Nanotip Arrays by Phosphonic Acid Modification and Photoillumination[J]. LANGMUIR,2011,27(21):13220-13225.
APA	Cheng, GS ,Su, RG ,Song, Q ,Cheng, GS ,&Kong, T .(2011).Tuning Surface Wettability of InxGa(1-x)N Nanotip Arrays by Phosphonic Acid Modification and Photoillumination.LANGMUIR,27(21),13220-13225.
MLA	Cheng, GS ,et al."Tuning Surface Wettability of InxGa(1-x)N Nanotip Arrays by Phosphonic Acid Modification and Photoillumination".LANGMUIR 27.21(2011):13220-13225.