@article{open2569,
          volume = {45},
          number = {1},
           month = {January},
          author = {Pooja Devi and Anupama Thakur and Dibyendu Ghosh and E.Senthil Prasad and S.M. Sgivaprasad and R.K. Sinha and Parveen Kumar},
            note = {Copyright of this article belongs to Elsevier Science.},
           title = {Boosting Photochemical Performance of GaN nanowall network photoanode with Bacteriorhodopsin},
       publisher = {Elsevier Science},
            year = {2020},
         journal = {International Journal of Hydrogen Energy },
           pages = {103--111},
        keywords = {Bio-nanohybridHydrogenNanowall networkProton-pumpingPhotoanode},
             url = {http://crdd.osdd.net/open/2569/},
        abstract = {The ever-increasing demand for renewable and clean energy sources has prompted the development of novel materials for photoelectrochemical (PEC) water splitting, but efficient solar to hydrogen conversion remains a big challenge. In this work, we report a bio-nanohybrid strategy in a photo-system to simultaneously enhance the charge separation and water splitting efficiency of photoanode (PA) by introducing Bacteriorhodopsin (bR), a natural proton pumping photosystem and GaN nanowall network (NWN), a direct band gap and corrosion-resistant semiconductor. The experimental study reveals that this combination of bR and GaN NWN has huge potential as a light-activated sensitizer as well as proton pumping source to achieve enhance photocurrent density in hydrogen evolution reaction (HER). Consequently, this synergistic effect in bR/GaN NWN PA gives rise to largely enhanced applied bias photon-to-current efficiency (ABPE) {\texttt{\char126}}7.8\% and photocurrent density (28.74 mA/cm2 at 1.0 V vs RHE). It is worth mentioning that the photocurrent density of bR/GaN NWN, to the best of our knowledge, is superior to previously reported bR-based PAs and bio-photoelectric devices reported till today for solar-to-hydrogen fuel}
}