Surface chemistry-engineered perovskite quantum dot photovoltaics

Chemical Society Reviews, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

This review summarizes the progress and provides perspectives on perovskite quantum dot photovoltaics, with a focus surface chemistry engineering, paving new direction for large-area low-cost PV technology to address major energy challenges.

Язык: Английский

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Stabilizing dynamic surface of highly luminescent perovskite quantum dots for light-emitting diodes

Chemical Engineering Journal, Год журнала: 2022, Номер 453, С. 139909 - 139909

Опубликована: Окт. 20, 2022

Язык: Английский

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Rejuvenating Aged Perovskite Quantum Dots for Efficient Solar Cells

Advanced Materials, Год журнала: 2023, Номер 36(1)

Опубликована: Сен. 20, 2023

Abstract Perovskite quantum dots (PQDs) have emerged as one of the most promising candidates for next‐generation solar cells owing to its remarkable optoelectronic properties and solution processability. However, PQDs suffer from severe degradation in storage due dynamically binding ligands, predominantly affecting photovoltaic applications. Herein, an situ defect healing treatment (DHT) is reported effectively rejuvenate aged PQDs. Systematically, experimental studies theoretical calculations are performed fundamentally understand causes leading recovered The results reveal that I 3 − anions produced tetra‐ n ‐octylammonium iodide iodine could strongly anchor on surface matrix defects PQDs, substantially diminishing nonradiative recombination photogenerated charge carriers. Meanwhile, DHT also renovate morphology thus improve stacking orientation PQD solids, ameliorating carrier transport within solids. Consequently, by using a DHT, cell (PQDSC) yields high efficiency up 15.88%, which comparable with PQDSCs fabricated fresh stability rejuvenated largely improved.

Язык: Английский

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Stabilized Perovskite Quantum Dot Solids via Nonpolar Solvent Dispersible Covalent Ligands

Advanced Science, Год журнала: 2023, Номер 10(23)

Опубликована: Июнь 4, 2023

The ligand exchange procedure of CsPbI3 perovskite quantum dots (PQDs) enables the fabrication thick and conductive PQD solids that act as a photovoltaic absorber for solution-processed thin-film solar cells. However, ligand-exchanged suffer from deterioration in performance ambient stability due to surface traps, such uncoordinated Pb2+ sites on surface, which are generated after conventional process using ionic short-chain ligands dissolved polar solvents. Herein, facile stabilization is demonstrated can simultaneously improve covalent triphenylphosphine oxide (TPPO) nonpolar solvent. It found TPPO be covalently bound solvent octane completely preserve components. Owing their synergetic effects, stabilized solution exhibit higher optoelectrical properties than control absorber. Consequently, cells composed absorbers fabricated via strategy provide an improved power conversion efficiency 15.4% enhanced device stability.

Язык: Английский

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Surface matrix regulation of perovskite quantum dots for efficient solar cells

Energy & Environmental Science, Год журнала: 2024, Номер 17(16), С. 5756 - 5794

Опубликована: Янв. 1, 2024

This review comprehensively discusses the latest advances in surface matrix regulation of perovskite quantum dots and proposes opportunities challenges for high-performance solar cells.

Язык: Английский

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