Design of UV Absorbing Donor Molecules for Nearly Imperceptible Organic Solar Cells
Ball ML, Burlingame Q, Smith HL, Liu T, Parkin SR, Kahn A, Loo YL (2022)
Publication Language: English
Publication Type: Journal article
Publication year: 2022
Journal
Book Volume: 7
Pages Range: 180-188
DOI: 10.1021/acsenergylett.1c02244
Abstract
Transparent photovoltaic cells are an emerging technology that can provide point-of-use electricity generation for building integrated applications. While most transparent solar cells to date target absorption of the photon-rich near-infrared portion of the solar spectrum, these devices compromise color neutrality and transparency because of parasitic absorption of long-wavelength visible light. One solution to eliminate parasitic absorption is to employ materials that absorb near-ultraviolet light with sharper absorption cutoffs. Herein, we demonstrate organic donor materials based on N,N′-diaryl-diamines that incorporate a series of aryl linkers to systematically tune their absorption profiles. When paired with acceptor 4,6-bis(3,5-di-4-pyridinylphenyl)-2-methylpyrimidine in an inverted architecture with an indium tin oxide top electrode and an organic optical outcoupling layer, the three best-performing transparent solar cells exhibit average photopic-response-weighted transmittances of 80.3−82.0% and color-rendering indices of 95.0−97.1, both of which are records for organic photovoltaics, with power-conversion efficiencies of 0.43−0.70%.
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APA:
Ball, M.L., Burlingame, Q., Smith, H.L., Liu, T., Parkin, S.R., Kahn, A., & Loo, Y.-L. (2022). Design of UV Absorbing Donor Molecules for Nearly Imperceptible Organic Solar Cells. ACS Energy Letters, 7, 180-188. https://dx.doi.org/10.1021/acsenergylett.1c02244
MLA:
Ball, Melissa L., et al. "Design of UV Absorbing Donor Molecules for Nearly Imperceptible Organic Solar Cells." ACS Energy Letters 7 (2022): 180-188.
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