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Open AccessArticle

PMMA Thin Film with Embedded Carbon Quantum Dots for Post-Fabrication Improvement of Light Harvesting in Perovskite Solar Cells

1
Department of Electrical and Computer Engineering, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
2
Department of Chemistry, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
3
Nazarbayev University, Nur-Sultan 010000, Kazakhstan
4
Department of Nanoenergy Engineering and BK21 PLUS Nanoconvergence Technology Division, Pusan National University, Busan 46241, Korea
5
Department of Physics, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
*
Authors to whom correspondence should be addressed.
These authors contributed equally.
Nanomaterials 2020, 10(2), 291; https://doi.org/10.3390/nano10020291
Received: 2 December 2019 / Revised: 23 January 2020 / Accepted: 4 February 2020 / Published: 9 February 2020
(This article belongs to the Special Issue Photoactive Nanomaterials)
Perovskite solar cells (PSCs) with a standard sandwich structure suffer from optical transmission losses due to the substrate and its active layers. Developing strategies for compensating for the losses in light harvesting is of significant importance to achieving a further enhancement in device efficiencies. In this work, the down-conversion effect of carbon quantum dots (CQDs) was employed to convert the UV fraction of the incident light into visible light. For this, thin films of poly(methyl methacrylate) with embedded carbon quantum dots ([email protected]) were deposited on the illumination side of PSCs. Analysis of the device performances before and after application of [email protected] photoactive functional film on PSCs revealed that the devices with the coating showed an improved photocurrent and fill factor, resulting in higher device efficiency. View Full-Text
Keywords: Perovskite solar cell; PMMA; carbon quantum dots; down-conversion; light harvesting Perovskite solar cell; PMMA; carbon quantum dots; down-conversion; light harvesting
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Maxim, A.A.; Sadyk, S.N.; Aidarkhanov, D.; Surya, C.; Ng, A.; Hwang, Y.-H.; Atabaev, T.S.; Jumabekov, A.N. PMMA Thin Film with Embedded Carbon Quantum Dots for Post-Fabrication Improvement of Light Harvesting in Perovskite Solar Cells. Nanomaterials 2020, 10, 291.

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