期刊
IEEE JOURNAL OF PHOTOVOLTAICS
卷 6, 期 4, 页码 912-917出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOTOV.2016.2551462
关键词
Electron transport layer; interface modification; metal oxide; organic solar cell
资金
- U.S.-Pakistan Joint Science and Technology through National Academy of Science
- EE Ph.D. program, NASA EPSCoR [NNX13AD31A]
- NSF MRI [CBET-1428992]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1428992] Funding Source: National Science Foundation
A simple cost-effective approach was demonstrated to increase the rear efficiency and ratio of rear-to-front efficiencies for bifacial dye-sensitized solar cells (DSCs). This was achieved by enhancing the transparency of the counter electrode of the DSC using a composite of platinum-and aluminum-doped zinc oxide (Pt/AZO). The thermally deposited composite Pt/AZO counter electrodes exhibited transmittance T550 nm = 0.70-0.74 versus Pt with 0.63. The comparable front power conversion efficiency (PCEfront) of fabricated DSCs using the composite Pt/AZO counter electrodes suggested that the presence of AZO in the composite had minimal effect on the catalytic activity of the platinum. DSCs with composite Pt/AZO counter electrode presented superior rear PCEs compared with platinum counterparts and was attributed to higher short-circuit current density J(sc) resulting from the larger transmittance of the composite counter electrode. The higher PCErear/PCEfront of the composite-based DSCs compared with Pt-based DSC suggested that such transparent composite counter electrodes could be employed in bifacial DSCs.
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