Improved performance with boron-doped carbon quantum dots in perovskite solar cells

This study reports the using of boron-doped carbon quantum dots (B-CQDs), which can convert ultraviolet to blue light, as an additive in MAPbI3 based perovskite solar cells (PSCs) for improved photovoltaic performance. After a successful facile synthesis of B-CQDs, our work showed that the appropria...

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Veröffentlicht in:Journal of alloys and compounds 2022-12, Vol.927, p.166851, Article 166851
Hauptverfasser: Kırbıyık Kurukavak, Çisem, Yılmaz, Tuğbahan, Toprak, Ayşegül, Büyükbekar, Alihan, Kuş, Mahmut, Ersöz, Mustafa
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container_start_page 166851
container_title Journal of alloys and compounds
container_volume 927
creator Kırbıyık Kurukavak, Çisem
Yılmaz, Tuğbahan
Toprak, Ayşegül
Büyükbekar, Alihan
Kuş, Mahmut
Ersöz, Mustafa
description This study reports the using of boron-doped carbon quantum dots (B-CQDs), which can convert ultraviolet to blue light, as an additive in MAPbI3 based perovskite solar cells (PSCs) for improved photovoltaic performance. After a successful facile synthesis of B-CQDs, our work showed that the appropriate addition of B-CQDs (5% vol.) into MAPbI3 absorber layer can passivate the grain boundaries of perovskite crystals, improve the crystallinity and the grain sizes. Additionally, optical, and photovoltaic characteristics showed that the addition of B-CQDs can efficiently improve the charge transport properties and the hole extraction, while decreasing the recombination losses. In comparison to control device, power conversion efficiency (PCE) of champion device was increased from 10.4% to 12.7%. This approach of constructing inverted p-i-n PSCs with B-CQDs additives offers a simple way for the preparation of efficient and stable perovskite photovoltaics for future application. [Display omitted] •The B-CQDs doped Perovskite Solar Cell has been successfully fabricated, which results in the enhanced photovoltaic parameters.•A better quality of perovskite film with enlarged grain size and improved crystallinity was obtained.•The champion PSC with vol. 5% of B-CQDs increased from initial PCE of 10.4% to PCE of 12.7%.•The reproducibility of the PSCs was also observed around 80%.
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subjects Additive engineering
Additives
B-CQDs
Boron
Carbon
Charge transport
Control equipment
Energy conversion efficiency
Film coverage
Grain boundaries
Grain size
Passivation
Perovskite solar cells
Perovskites
Photovoltaic cells
Quantum dots
Solar cells
Transport properties
title Improved performance with boron-doped carbon quantum dots in perovskite solar cells
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