472603 Study of Charge Transfer Dynamics in Spray Deposited Cu2ZnSnS4 (CZTS) Photoelectrodes for Performance Improvement

Monday, November 14, 2016: 9:42 AM
Golden Gate 5 (Hilton San Francisco Union Square)
Animesh Mondal, Chemical Engineering, Auburn University, Auburn, AL and James G. Radich, Chemical Engineering, Auburn University, Auburn University, AL

Thin film solar cell based on Cu2ZnSnS4 (CZTS) has the potential for large scale electricity production using solar radiation while all of the elements are earth abundant, inexpensive and environment friendly. The state of art CZTS solar cell has reached 12.6% efficiency while the commercial production will require at least 15% for economic feasibility. Here, we approach to understand the charge transfer dynamics in CZTS using ultrafast laser spectroscopy and focus on improving the efficiency of CZTS photovoltaics through the incorporation of a mesoscopic hole acceptor, nickel oxide. CZTS photoelectrode is prepared using spray deposition of precursor solution, and characterized using SEM, TEM, XRD, XPS and Raman Spectroscopy. The performance of the material is tested in three electrode photo electrochemical cell.

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See more of this Session: Nanostructured/Thin Film Photovoltaics
See more of this Group/Topical: Materials Engineering and Sciences Division