Nitrogen-doped CQDs to enhance the power conversion efficiency of perovskite solar cells via surface passivation

Kırbıyık, Çisem; Toprak, Ayşegül; Baslak, Canan; Kuş, Mahmut; Ersöz, Mustafa

doi:10.1016/j.jallcom.2020.154897

Cited by 23 publications

(13 citation statements)

References 47 publications

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“…Furthermore, the interaction between CQDs and MAPbI3 created a protective layer that prevented the perovskite from coming into touch with water, improving SC stability. Kirbiyik et al reported that hetero-atom doped CQDs (N-CQDs), which was introduced in PSCs to serve as an intermediary, assist in the formation of a dense as well as smooth perovskite layer, which gained PCE of 14% (Kırbıyık et al, 2020). CQDs are considered to be potential replacements to poisonous and fragile inorganic halide perovskite-based solar cells, despite the fact that current research on CQDs in the field of solar cells is scarce, much alone their device efficiency (Paulo et al, 2016).…”

Section: Solar Cellsmentioning

confidence: 99%

Recent Advances on Synthesis and Potential Applications of Carbon Quantum Dots

2022

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Fluorescent carbon nanoparticles also termed as carbon quantum dots (CQDs) have attracted so much interest when compared to the traditional semiconductor quantum dots due to their applications in chemical sensing, biomedical imaging, nanotechnology, photovoltaics, light-emitting diodes (LEDs), and electrochemistry. Along with their optical features, CQDs have desired properties such as less toxicity, environmentally friendly nature, inexpensive, and simple preparation processes. In addition, CQDs can have their physical and chemical properties controlled by surface passivation and functionalization. This article provides an account of CQDs because of their distinct characteristics and considerable capacity in diverse applications. The article is categorized into various sections that highlight various synthesis methodologies of CQDs with their advantages/disadvantages and their potential applications in sensors, bio-imaging, drug delivery, solar cells, and supercapacitors. The different applications of CQDs can be demonstrated by controlled synthesis methods. We have also discussed gas sensing applications of CQDs briefly and provided a brief overview of osmotic power generation using CQDs for energy applications.

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Section: Solar Cellsmentioning

confidence: 99%

Recent Advances on Synthesis and Potential Applications of Carbon Quantum Dots

2022

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“…Through interactions between perovskite and carboxylic, hydroxyl, and/or amino groups on CNPs, additional passivation of the trap states and the decrease of nonradiative charge recombination have been realized. [ 75,193 ] Modification of CNPs with potassium cations was shown to be useful for filling and passivation of perovskite grain boundaries, [ 77 ] similar to the effect that was previously reported for fullerenes. [ 32 ] However, an excess amount of CNPs added to MAPbI 3 perovskite precursors may also have detrimental influence, as they could act as heterogeneous nucleation centers inducing pinholes and cracks in the perovskite grains.…”

Section: Cnps In Perovskite Solar Cellsmentioning

confidence: 74%

Carbon Nanoparticles as Versatile Auxiliary Components of Perovskite‐Based Optoelectronic Devices

Litvin

Zhang

Ushakova

et al. 2021

Adv Funct Materials

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Metal halide perovskite-based optoelectronics has experienced an unprecedented development in the last decade, while further improvements of efficiency, stability, and economic gains of such devices require novel engineering concepts. The use of carbon nanoparticles as versatile auxiliary components of perovskite-based optoelectronic devices is one strategy that offers several advantages in this respect. In this review, first, a brief introduction is offered on metal halide perovskites and on the major performance characteristics of related optoelectronic devices. Then, the versatility and merits of different kinds of carbon nanoparticles, such as graphene quantum dots and carbon dots, are discussed. The tunability of their electronic properties is focused upon, their interactions with perovskite components are analyzed, and different strategies of their implementation in optoelectronic devices are introduced, which include solar cells, light-emitting diodes, luminescent solar concentrators, and photodetectors. It is shown how carbon nanoparticles influence charge carriers extraction and transport, promote perovskite crystallization, allow for efficient passivation, block ion migration, suppress hysteresis, enhance their environmental stability, and thus improve the performance of perovskite-based optoelectronic devices.

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“…The K 2 HfSiO 5 :Eu 2+ phosphor was used to fabricate an energy-down-shift (EDS) layer for CsPbI 3 solar cells. 6,54–56 The morphology and particle size of K 2 HfSiO 5 :0.02Eu 2+ phosphor are displayed in Fig. 9(a) and (b).…”

Section: Resultsmentioning

confidence: 99%

Designing a novel Eu²⁺-doped hafnium-silicate phosphor for an energy-down-shift layer of CsPbI₃ solar cells

Wang

2022

Mater. Chem. Front.

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Nitrogen-doped CQDs to enhance the power conversion efficiency of perovskite solar cells via surface passivation

Cited by 23 publications

References 47 publications

Recent Advances on Synthesis and Potential Applications of Carbon Quantum Dots

Recent Advances on Synthesis and Potential Applications of Carbon Quantum Dots

Carbon Nanoparticles as Versatile Auxiliary Components of Perovskite‐Based Optoelectronic Devices

Designing a novel Eu²⁺-doped hafnium-silicate phosphor for an energy-down-shift layer of CsPbI₃ solar cells

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Nitrogen-doped CQDs to enhance the power conversion efficiency of perovskite solar cells via surface passivation

Cited by 23 publications

References 47 publications

Recent Advances on Synthesis and Potential Applications of Carbon Quantum Dots

Recent Advances on Synthesis and Potential Applications of Carbon Quantum Dots

Carbon Nanoparticles as Versatile Auxiliary Components of Perovskite‐Based Optoelectronic Devices

Designing a novel Eu2+-doped hafnium-silicate phosphor for an energy-down-shift layer of CsPbI3 solar cells

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Designing a novel Eu²⁺-doped hafnium-silicate phosphor for an energy-down-shift layer of CsPbI₃ solar cells