TY - GEN
T1 - Zinc oxide (ZnO) and bandgap engineering for photoelectrochemical splitting of water to produce hydrogen
AU - Shet, Sudhakar
AU - Yan, Yanfa
AU - Wang, Heli
AU - Ravindra, Nuggehalli
AU - Turner, John
AU - Al-Jassim, Mowafak
PY - 2012
Y1 - 2012
N2 - We report material synthesis, characterization, and photoelectrochemical (PEC) measurements to explore methods to effectively reduce the band gap of ZnO for the application of PEC water splitting. We find that the band gap reduction of ZnO can be achieved by N and Cu incorporation into ZnO. We demonstrate that heavy Cu-incorporation lead to both p-type doping and band gap significantly reduced ZnO thin films. The p-type conductivity in our ZnO:Cu films is clearly revealed by Mott-Schottky plots. We further have successfully synthesized ZnO:N thin films with various reduced band gaps by reactive RF magnetron sputtering. The band gap reduction and photoresponse with visible light for N- and Cu-incorporated ZnO thin films are demonstrated.
AB - We report material synthesis, characterization, and photoelectrochemical (PEC) measurements to explore methods to effectively reduce the band gap of ZnO for the application of PEC water splitting. We find that the band gap reduction of ZnO can be achieved by N and Cu incorporation into ZnO. We demonstrate that heavy Cu-incorporation lead to both p-type doping and band gap significantly reduced ZnO thin films. The p-type conductivity in our ZnO:Cu films is clearly revealed by Mott-Schottky plots. We further have successfully synthesized ZnO:N thin films with various reduced band gaps by reactive RF magnetron sputtering. The band gap reduction and photoresponse with visible light for N- and Cu-incorporated ZnO thin films are demonstrated.
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U2 - 10.1002/9781118511350.ch24
DO - 10.1002/9781118511350.ch24
M3 - Conference contribution
AN - SCOPUS:84870541779
SN - 9781118273357
T3 - Ceramic Transactions
SP - 231
EP - 236
BT - Advances and Applications in Electroceramics II
PB - American Ceramic Society
T2 - Advances and Applications in Electroceramics II - Materials Science and Technology 2011 Conference and Exhibition, MS and T 2011
Y2 - 16 October 2011 through 20 October 2011
ER -