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)

Publication Status: Published

Publication Type: Journal article

Publication year: 2014

Journal

Nano Letters American Chemical Society

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.

Authors with CRIS profile

Ryan Crisp Lehrstuhl für Chemistry of thin film materials

Involved external institutions

University of Chicago US United States (USA) (US) National Renewable Energy Laboratory (NREL) US United States (USA) (US)

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://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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