Evaluation of Ga:MgZnO/CIGSe Heterojunction for Realization of All Sputtered Buffer-Less Solar Cell
In this article, the valence band offset (VBOff) and conduction band offset (CBOff) values of Cu(In0.70Ga0.30)Se/3at.% Ga:Mg0.20Zn0.80O (GMZO) heterojunction, grown by dual ion beam sputtering system (DIBS), are calculated to understand the carrier transport mechanism at the heterojunction for realization of all sputtered buffer-less solar cells.
This work is partially supported by Board of Research in Nuclear Sciences (BRNS), Department of Atomic Energy (DAE), Government of India and Clean Energy Research Initiative (CERI), Department of Science and Technology (DST), Government of India. We are thankful to DIBS, FESEM, EDX and XRD facility equipped at Sophisticated Instrument Centre (SIC) at IIT Indore. The authors Vivek Garg and Brajendra S. Sengar acknowledge UGC and CSIR, respectively India for their fellowships. Nisheka Anadkat and Gaurav Siddharth acknowledge DST INSPIRE and DeitY, respectively for their fellowships. Prof. Shaibal Mukherjee is thankful to DeitY YFRF, Government of India award.
- 4.N. Naghavi, S. Temgoua, T. Hildebrandt, J.F. Guillemoles, D. Lincot, Impact of oxygen concentration during the deposition of window layers on lowering the metastability effects in Cu(In, Ga)Se2/CBD Zn (S, O) based solar cell. Prog. Photovoltaics Res. Appl. 23(12), 1820–1827 (2015)CrossRefGoogle Scholar
- 5.T. Kobayashi, Z. Jehl Li Kao, T. Kato, H. Sugimoto, T. Nakada, A comparative study of Cd‐and Zn‐compound buffer layers on Cu (In1−x, Gax)(Sy, Se1−y) 2 thin film solar cells. Prog. Photovolt. Res. Appl. 24, 389 (2015)Google Scholar
- 11.V. Awasthi, V. Garg, B.S. Sengar, S.K. Pandey, S.A. Kumar, C. Mukherjee, S. Mukherjee, Impact of sputter-instigated plasmonic features in TCO films: for ultrathin photovoltaic applications. Appl. Phys. Lett. 110(10), 103903 (2017)Google Scholar