Light Management in Perovskite Solar Cell by Incorporation of Carbon Quantum Dots
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Date
2020-08
Authors
Maxim, Askar A.
Aidarkhanov, Damir
Atabaev, Timur Sh.
Jumabekov, Askhat N.
Ng, Annie
Journal Title
Journal ISSN
Volume Title
Publisher
The 8th International Conference on Nanomaterials and Advanced Energy Storage Systems; Nazarbayev University; National Laboratory Astana; Institute of Batteries
Abstract
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 (CQD@PMMA) were deposited on the illumination side of PSCs. Analysis of the device performances before and after application of CQD@PMMA photoactive functional film on PSCs revealed that the devices with the coating showed an improved photocurrent and fill factor, resulting in higher device efficiency. Meanwhile, other effective incorporation approaches of CQD in PSCs will be demonstrated. The underlying mechanism for the enhancement in device performance will be investiaged. The obtained results will provide an valuable insignt into the community for future light management during PSC fabrication.
Description
Keywords
light management, perovskite solar cells, carbon quantum dots, Research Subject Categories::TECHNOLOGY
Citation
Maxim, A., Aidarkhanov, D., Atabaev, T., Jumabekov, A. & Ng, A. (2020). Light Management in Perovskite Solar Cell by Incorporation of Carbon Quantum Dots [Abstract]. The 8th International Conference on Nanomaterials and Advanced Energy Storage Systems; Nazarbayev University; National Laboratory Astana; Institute of Batteries.