TY - JOUR
T1 - Superior visible-light assisted water splitting performance by Fe incorporated ZnO photoanodes
AU - Khan, Humaira Rashid
AU - Aamir, Muhammad
AU - Akram, Bilal
AU - Tahir, Asif Ali
AU - Malik, Mohammad Azad
AU - Choudhary, Muhammad Aziz
AU - Akhtar, Javeed
PY - 2020/2
Y1 - 2020/2
N2 - Transition metal ion incorporation has been emerged as an effective stratagem to enhance the performance of metal oxide photoanodes. In the present work, we design and fabricate the plain ZnO and (2, 5, 10 and 15%) Fe incorporated ZnO photoanodes by aerosol assisted chemical vapor deposition (AACVD) method. The 15% Fe incorporated ZnO photoanode displayed excellent photocurrent density of 4.6 mA/cm2 at 0.7 VAg/AgCl with photo conversion efficiency of 2.4%, which is 159 times higher than pure ZnO photoanode (0.028 mA/cm2). The obtained results are remarkably superior to the previous results. Furthermore, the Fe incorporated photoelectrodes have also shown good stability. The excellent photoelectrochemical performance of Fe incorporated ZnO showed red shift in band edge with relative decrease in the band gap energy compared to pure ZnO. The demonstration of this simple method for the deposition of Fe incorporated ZnO to fabricate highly efficient photoanode for the PEC water splitting can easily be applied to other similar systems.
AB - Transition metal ion incorporation has been emerged as an effective stratagem to enhance the performance of metal oxide photoanodes. In the present work, we design and fabricate the plain ZnO and (2, 5, 10 and 15%) Fe incorporated ZnO photoanodes by aerosol assisted chemical vapor deposition (AACVD) method. The 15% Fe incorporated ZnO photoanode displayed excellent photocurrent density of 4.6 mA/cm2 at 0.7 VAg/AgCl with photo conversion efficiency of 2.4%, which is 159 times higher than pure ZnO photoanode (0.028 mA/cm2). The obtained results are remarkably superior to the previous results. Furthermore, the Fe incorporated photoelectrodes have also shown good stability. The excellent photoelectrochemical performance of Fe incorporated ZnO showed red shift in band edge with relative decrease in the band gap energy compared to pure ZnO. The demonstration of this simple method for the deposition of Fe incorporated ZnO to fabricate highly efficient photoanode for the PEC water splitting can easily be applied to other similar systems.
KW - AACVD
KW - Fe incorporated ZnO
KW - PEC
KW - Photoanodes
KW - Wurtzite
UR - http://www.scopus.com/inward/record.url?scp=85074095248&partnerID=8YFLogxK
U2 - 10.1016/j.materresbull.2019.110627
DO - 10.1016/j.materresbull.2019.110627
M3 - Article
AN - SCOPUS:85074095248
SN - 0025-5408
VL - 122
JO - Materials Research Bulletin
JF - Materials Research Bulletin
M1 - 110627
ER -