Kurley JM, Panthani MG, Crisp R, Nanayakkara SU, Pach GF, Reese MO, Hudson MH, Dolzhnikov DS, Tanygin V, Luther JM, Talapin DV (2017)
Publication Status: Published
Publication Type: Journal article, Letter
Publication year: 2017
Publisher: AMER CHEMICAL SOC
Book Volume: 2
Pages Range: 270-278
Journal Issue: 1
DOI: 10.1021/acsenergylett.6b00587
Recently, solution-processing became a viable route for depositing CdTe for use in photovoltaics. Ultrathin (similar to 500 nm) solar cells have been made using colloidal CdTe nanocrystals with efficiencies exceeding 12% power conversion efficiency (PCE) demonstrated by using very simple device stacks. Further progress requires an effective method for extracting charge carriers generated during light harvesting. Here, we explored solution-based methods for creating transparent Ohmic contacts to the solution-deposited CdTe absorber layer and demonstrated molecular and nanocrystal approaches to Ohmic hole extracting contacts at the ITO/CdTe interface. We used scanning Kelvin probe microscopy to further show how the above approaches improved carrier collection by reducing the potential drop under reverse bias across the ITO/CdTe interface. Other methods, such as spin-coating CdTe/A(2)CdTe(2) (A = Na, K, Cs, N2H5), can be used in conjunction with current/light soaking to improve PCE further.
APA:
Kurley, J.M., Panthani, M.G., Crisp, R., Nanayakkara, S.U., Pach, G.F., Reese, M.O.,... Talapin, D.V. (2017). Transparent Ohmic Contacts for Solution-Processed, Ultrathin CdTe Solar Cells. ACS Energy Letters, 2(1), 270-278. https://doi.org/10.1021/acsenergylett.6b00587
MLA:
Kurley, J. Matthew, et al. "Transparent Ohmic Contacts for Solution-Processed, Ultrathin CdTe Solar Cells." ACS Energy Letters 2.1 (2017): 270-278.
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