TOP‐Zn Steric Hindrance Effect Enables Ultra‐Uniform CsPbX3 Quantum Dots for Wide‐Color Gamut Displays DOI

Xinyi Lv,

Yuqin Su,

Hengyang Xiang

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract Perovskite quantum dots (PQDs) are expected to be an ideal candidate for wide‐color gamut displays owing their high color purity. However, purity is challenged by remarkable spectral broadening due non‐uniform size distribution and crystal defects. Here, a ligand‐ion (TOP‐Zn) complex‐modulating nucleation strategy proposed depress broadening. This achieved enhancing the steric hindrance effect during lead‐halogen octahedral assembly reducing reaction activity/sites of system. universal has been confirmed effective blue, green, red PQDs, achieving narrowed full‐width‐at‐half‐maximum (FWHM) 15, 17, 25 nm, respectively. These FWHMs record‐breaking contribute wide coverage ≈130% National Television Standards Committee ≈100% Rec. 2020 standard. Meanwhile, these PQD‐based light‐emitting diodes (PeLEDs) exhibit external efficiency (EQE) exceeding 20% at pure range. results provide feasible path achieve ultra‐uniform pure‐color luminescent PQDs displays.

Language: Английский

Dual Interface Passivation With Multi‐Site Regulation Toward Efficient and Stable Inverted Perovskite Solar Cells DOI Open Access
Kunpeng Li, Yong Han, Xinlong Zhao

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

Abstract The rapid crystallization process of perovskite produces a large number defects that remain critical factor disturbs the performance solar cells (PSCs). In this research, these challenges are mitigated by introducing multifunctional 2,6‐pyridinedicarboxylic acid chloride (PAC) as an additive into perovskite. During thermal annealing process, predominant accumulation PAC occurs at upper and buried interfaces film. possesses multiple passivating sites facilitate anchoring lead iodine defects, thereby enhancing quality material across both its dual grain boundaries. With unique property, combined with advantages enhanced crystallization, reduced non‐radiative recombination, boosted charge carrier mobility, optimal energy level alignment, PSC achieved power conversion efficiency (PCE) 25.60% maintained more than 90% after 3000 h under one equivalent light 1400 dark high temperature (85 °C). interface passivation strategy provides sustainable solution to stability environmental for commercialization cells.

Language: Английский

Citations

2
Robust 3D/2D Heterojunction with Oriented Dion-Jacobson Layer for Improved Ion Migration Suppression in Large-Area Inverted Perovskite Solar Cells DOI

Beilin Ouyang,

Congcong Tian,

Anxin Sun

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111024 - 111024

Published: April 1, 2025

Language: Английский

Citations

0
Benzalkonium chloride assisted quenching-free fabrication of nonalloyed FAPbI3 perovskite films and solar cells DOI
Tian Hou, Xiaoran Sun,

Zhipeng Fu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162771 - 162771

Published: April 1, 2025

Language: Английский

Citations

0
Strategies to promote the certified efficiency of inverted perovskite solar cells above 24%: A review DOI Creative Commons
Fengren Cao, Min Wang, Liang Li

et al.

Published: April 1, 2025

Language: Английский

Citations

0
TOP‐Zn Steric Hindrance Effect Enables Ultra‐Uniform CsPbX3 Quantum Dots for Wide‐Color Gamut Displays DOI

Xinyi Lv,

Yuqin Su,

Hengyang Xiang

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract Perovskite quantum dots (PQDs) are expected to be an ideal candidate for wide‐color gamut displays owing their high color purity. However, purity is challenged by remarkable spectral broadening due non‐uniform size distribution and crystal defects. Here, a ligand‐ion (TOP‐Zn) complex‐modulating nucleation strategy proposed depress broadening. This achieved enhancing the steric hindrance effect during lead‐halogen octahedral assembly reducing reaction activity/sites of system. universal has been confirmed effective blue, green, red PQDs, achieving narrowed full‐width‐at‐half‐maximum (FWHM) 15, 17, 25 nm, respectively. These FWHMs record‐breaking contribute wide coverage ≈130% National Television Standards Committee ≈100% Rec. 2020 standard. Meanwhile, these PQD‐based light‐emitting diodes (PeLEDs) exhibit external efficiency (EQE) exceeding 20% at pure range. results provide feasible path achieve ultra‐uniform pure‐color luminescent PQDs displays.

Language: Английский

Citations

0