Quantum‐Dot‐Sensitized TiO2 Inverse Opals for Photoelectrochemical Hydrogen Generation

Small - Tập 8 Số 1 - Trang 37-42 - 2012
Chuanwei Cheng1,2, Siva Krishna Karuturi3, Lijun Liu3, Jinping Liu1, Hongxing Li1, Liap Tat Su3, Alfred Iing Yoong Tok4,5,3, Hong Jin Fan4,1,5
1Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore, Singapore
2Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, Department of Physics, Tongji University, Shanghai 200092, P.R. China
3School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore, Singapore
4Alfred Iing Yoong Tok, School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore, Singapore
5Hong Jin Fan, Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore, Singapore.

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The photon‐to‐hydrogen conversion efficiency can be calculated from the equation:η= [J× (1.23– Vbias)]/Pin whereJis the photocurrent density (mA cm−2) Vbiasis the applied external bias which is obtained asVbias=ς(Vmeas– Voc) whereVmeasis the electrode protential at whichPinwas measured Vocis the electrode potential at open circuit in the same electrolyte and under the same illumination of light andPinis the incident light intensity in mW cm−2(100 mW cm−2in this case).

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