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Enhanced photoelectrochemical water-splitting effect with a bent ZnO nanorod photoanode decorated with Ag nanoparticles

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Enhanced photoelectrochemical water-splitting effect with a bent ZnO nanorod photoanode decorated with Ag nanoparticles
นักวิจัย : Wei, Yuefan , Ke, Lin , Kong, Junhua , Liu, Hong , Jiao, Zhihui , Lu, Xuehong , Du, Hejun , Sun, Xiaowei
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Wei, Y., Ke, L., Kong, J., Liu, H., Jiao, Z., Lu, X., et al. (2012). Enhanced photoelectrochemical water-splitting effect with a bent ZnO nanorod photoanode decorated with Ag nanoparticles. Nanotechnology, 23(23). , 0957-4484 , http://hdl.handle.net/10220/10642 , http://dx.doi.org/10.1088/0957-4484/23/23/235401
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Nanotechnology
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Zinc oxide (ZnO) nanorods coated with silver (Ag) film on a polyethylene terephthalate (PET) flexible substrate were used as the photoanode for water splitting. The hybrid nanostructures were prepared via low-temperature hydrothermal growth and electron beam evaporation. The effects of plasmonic enhanced absorption, surface recombination inhibition and improved charge transport are investigated by varying the Ag thickness. Light trapping and absorption enhancement are further studied by optimizing the curvature of the PET substrates. The maximum short circuit current density (JSC, 0.616 mA cm−2) and the photoelectron conversion efficiency (PCE, 0.81%) are achieved with an optimized Ag film thickness of 10 nm and substrate bending radius of 6.0 mm. The maximum JSC and PCE are seven times and ten times, respectively, higher than those of the bare ZnO nanorods on flexible substrates without bending. The overall PEC performance improvement is attributed to the plasmonic effects induced by Ag film and improved charge transport due to inhibition of ZnO surface charge recombination. Enhanced light trapping (harvesting) induced by bending the PET substrates further improved the overall efficiency.

บรรณานุกรม :
Wei, Yuefan , Ke, Lin , Kong, Junhua , Liu, Hong , Jiao, Zhihui , Lu, Xuehong , Du, Hejun , Sun, Xiaowei . (2555). Enhanced photoelectrochemical water-splitting effect with a bent ZnO nanorod photoanode decorated with Ag nanoparticles.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Wei, Yuefan , Ke, Lin , Kong, Junhua , Liu, Hong , Jiao, Zhihui , Lu, Xuehong , Du, Hejun , Sun, Xiaowei . 2555. "Enhanced photoelectrochemical water-splitting effect with a bent ZnO nanorod photoanode decorated with Ag nanoparticles".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Wei, Yuefan , Ke, Lin , Kong, Junhua , Liu, Hong , Jiao, Zhihui , Lu, Xuehong , Du, Hejun , Sun, Xiaowei . "Enhanced photoelectrochemical water-splitting effect with a bent ZnO nanorod photoanode decorated with Ag nanoparticles."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Wei, Yuefan , Ke, Lin , Kong, Junhua , Liu, Hong , Jiao, Zhihui , Lu, Xuehong , Du, Hejun , Sun, Xiaowei . Enhanced photoelectrochemical water-splitting effect with a bent ZnO nanorod photoanode decorated with Ag nanoparticles. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.