Adhesively Bridging Co‐Self‐Assembled Monolayer and Perovskite Via In Situ Polymerization for Enhanced Stability of Inverted Perovskite Solar Cells DOI

Xiaowei Xu,

Sibo Li,

Chengwei Shan

et al.

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

Published: June 1, 2025

Abstract The strategic utilization of self‐assembled monolayers (SAMs) significantly advances the interfacial contact and power conversion efficiency (PCE) inverted perovskite solar cells (IPSCs). However, inadequate adhesion between SAM layer remains a critical challenge, limiting further performance enhancement. Herein, synergistic interface engineering strategy is introduced that combines co‐assembly approach with in situ polymerization to optimize buried film. Specifically, 11‐Mercaptoundecylphosphoric acid (MPA) incorporated into form co‐SAMs, improving homogeneity mitigating defects at NiO x surface. Simultaneously, ionic liquid (IL) monomer 1‐Allyl‐3‐vinylimidazolium bis((trifluoromethyl)sulfonyl) imide (AVMTF 2 ) precursor. aggregation ILs cation bottom facilitates via sulfhydryl end groups, forming POL‐AVM polymer perovskite/SAM interface. This enhances adhesion, regulates crystallization, reinforces structural integrity by strongly anchoring organic cations through multiple hydrogen bonds. As result, this achieves champion PCE 26.25% (certified 26.04%), along excellent long‐term stability, retaining 95.6% its initial after 1000 h continuous operation under ISOS‐L‐2I protocol.

Language: Английский

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
Bifunctional Compound Induced Dual Back Surface Fields for Efficient Hole Transport Layer‐Free Perovskite Solar Cells DOI

Chaoyang Wang,

Junwei Xiang, Jiale Liu

et al.

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

Published: May 7, 2025

Carbon-based hole transport layer-free (C-HTL-free) perovskite solar cells (PSCs) are promising for low-cost and stable photovoltaics, but the HTL absence deteriorates their power conversion efficiency (PCE) due to lack of back surface field (BSF). In this work, benefits forming dual BSFs in improving PCE C-HTL-free PSCs first investigated by simulation. Then, trityl tetrakis(pentafluorophenyl)borate (Tr+TPFB-) is introduced into post-treatment time, which enables formation BSFs. TPFB- passivates n-doping defects leads n-p homojunction, while Tr+ extracts electrons from carbon lowers its work function, succeeds realizing This improves separation extraction photocarriers within device, evidenced photoluminescence lifetime imaging device cross-section time. As a result, average open-circuit voltage increases significantly about 70 mV, largely contributes improvement with champion value 20.79% obtained.

Language: Английский

Citations

0
Adhesively Bridging Co‐Self‐Assembled Monolayer and Perovskite Via In Situ Polymerization for Enhanced Stability of Inverted Perovskite Solar Cells DOI

Xiaowei Xu,

Sibo Li,

Chengwei Shan

et al.

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

Published: June 1, 2025

Abstract The strategic utilization of self‐assembled monolayers (SAMs) significantly advances the interfacial contact and power conversion efficiency (PCE) inverted perovskite solar cells (IPSCs). However, inadequate adhesion between SAM layer remains a critical challenge, limiting further performance enhancement. Herein, synergistic interface engineering strategy is introduced that combines co‐assembly approach with in situ polymerization to optimize buried film. Specifically, 11‐Mercaptoundecylphosphoric acid (MPA) incorporated into form co‐SAMs, improving homogeneity mitigating defects at NiO x surface. Simultaneously, ionic liquid (IL) monomer 1‐Allyl‐3‐vinylimidazolium bis((trifluoromethyl)sulfonyl) imide (AVMTF 2 ) precursor. aggregation ILs cation bottom facilitates via sulfhydryl end groups, forming POL‐AVM polymer perovskite/SAM interface. This enhances adhesion, regulates crystallization, reinforces structural integrity by strongly anchoring organic cations through multiple hydrogen bonds. As result, this achieves champion PCE 26.25% (certified 26.04%), along excellent long‐term stability, retaining 95.6% its initial after 1000 h continuous operation under ISOS‐L‐2I protocol.

Language: Английский

Citations

0