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High Efficiency Solution Processed Sintered CdTe Nanocrystal Solar Cells: The Role of Interfaces

Panthani MG, Kurley JM, Crisp R, Dietz TC, Ezzyat T, Luther JM, Talapin DV (2014)

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Publication Status: Published

Publication Type: Journal article

Publication year: 2014

Journal

Publisher: AMER CHEMICAL SOC

Book Volume: 14

Pages Range: 670-675

Journal Issue: 2

DOI: 10.1021/nl403912w

Abstract

Solution processing of photovoltaic semiconducting layers offers the potential for drastic cost reduction through improved materials utilization and high device throughput. One compelling solution-based processing strategy utilizes semiconductor layers produced by sintering nanocrystals into large-grain semiconductors at relatively low temperatures. Using n-ZnO/p-CdTe as a model system, we fabricate sintered CdTe nanocrystal solar cells processed at 350 degrees C with power conversion efficiencies (PCE) as high as 12.3%. J(SC) of over 25 mA cm(-2) are achieved, which are comparable or higher than those achieved using traditional, close-space sublimated CdTe. We find that the V-OC can be substantially increased by applying forward bias for short periods of time. Capacitance measurements as well as intensity- and temperature-dependent analysis indicate that the increased V-OC is likely due to relaxation of an energetic barrier at the ITO/CdTe interface.

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How to cite

APA:

Panthani, M.G., Kurley, J.M., Crisp, R., Dietz, T.C., Ezzyat, T., Luther, J.M., & Talapin, D.V. (2014). High Efficiency Solution Processed Sintered CdTe Nanocrystal Solar Cells: The Role of Interfaces. Nano Letters, 14(2), 670-675. https://dx.doi.org/10.1021/nl403912w

MLA:

Panthani, Matthew G., et al. "High Efficiency Solution Processed Sintered CdTe Nanocrystal Solar Cells: The Role of Interfaces." Nano Letters 14.2 (2014): 670-675.

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