Thiophene Substituent Engineering of Carbazole Based Self‐Assembled Monolayers for Use in High‐Performance Inverted Perovskite Solar Cells DOI Open Access
Peng Zhao,

Dingqian He,

Xu Fu

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Abstract Carbazole‐based self‐assembled monolayers (SAMs) are widely used in inverted perovskite solar cells (PSCs). However, the biased intermolecular assembly of SAM molecules, and lack Lewis ‐basic heteroatoms to efficiently tune crystallinity perovskites passivate interface defects still limited further improvement efficiency stability for PSCs involving carbazole‐based SAMs. Herein, a novel 3,6‐dithiophene molecule (named CzTh) is designed via substituent engineering strategy, which demonstrated effectively solve obstacles. The theory experiment find that introduction thiophene regulated SAMs with carbazole core terms surface wettability precursor solvent, energy level alignment, crystallization films passivation, attributed dipole moment changes, base property S atom. Consequently, CzTh achieved enhanced power conversion (PCE) excellent air stability, compared commercial (Me‐4PACz). As an “one‐stone‐three‐birds” design strategy SAMs, “thiophene‐substitution” tunes crystallization, passivates defects, enhances hole injection at perovskite/SAMs PSCs.

Language: Английский

High Performance Inverted Planar Perovskite Solar Cells Enhanced by Heteroatomic Functionalized Hole Transport Materials DOI
Zheng Xie, Yuheng Li, Xuehui Li

et al.

Materials Chemistry Frontiers, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Two heteroatomic functionalized hole transport materials with the rhodanine group have been developed, and PSC devices a high-quality perovskite layer excellent interfacial contacts are fabricated, resulting in champion PCE of 21.5%.

Language: Английский

Citations

9
Efficient Functional Compensation Layer Integrated with HTL for Improved Stability and Performance in Perovskite Solar Cells DOI Open Access

Xiangrui Du,

Fuqiang Li, Ying Li

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Improving the interface characteristics between hole-transport layer (HTL) and perovskite absorber is crucial for achieving maximum efficiency in inverted solar cells (PSCs). This paper presents an effective functional compensation (FCL) composed of benzothiophene derivatives, particularly 5-(trifluoromethyl)-1-benzothiophene-2-carboxylic acid (TFMBTA); this introduced MeO-2PACz HTL to improve interfacial them. FCL improves charge transfer, hole extraction, deposition by improving surface morphology optimizing energy level alignment. The groups TFMBTA effectively passivate defects. As a result, introduction markedly reduces non-radiative recombination at layer. MeO-2PACz-based PSCs with demonstrated impressive peak power conversion 23.85%, accompanied substantially enhanced open-circuit voltage (Voc), fill factor (FF), long-term stability. Similarly, introducing PEDOT:PSS both stability PSCs, demonstrating universality FCLs across different types HTLs.

Language: Английский

Citations

1
Nonpolar P-type Conjugated Small Molecules Enable High-Performance Organic Photodetectors for Potential Application in Optical Wireless Communication DOI
Yue‐Yue Wang, Minming Yan, Haoyu Huang

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

The high responsivity and broad spectral sensitivity of organic photodetectors (OPDs) present a bright future commercialization. However, the relatively dark current density still limits its development. Herein, two novel nonpolar p-type conjugated small molecules, NSN NSSN, are synthesized as interface layers to enhance performance OPDs, which not only can tune energy alignments increase reverse charge injection barrier but also reduce interfacial trap density. Moreover, benefiting from smoother surface morphology enhanced conductivity, exhibited superior transport collection properties. Consequently, OPD with achieved 0.37 nA cm–2 specific detectivity 2.77 × 1013 Jones at −2 V. More importantly, optimized OPDs be successfully integrated into optical communication systems, demonstrating precise digital signal without obvious distortion, showing promising application potential in wireless transmission system.

Language: Английский

Citations

1
Toward Maximizing Hole Selection with Self-Assembled Monolayers in Sn-Based Perovskite Solar Cells DOI Creative Commons
Donghoon Song, S.W. Shin,

Hui‐Ping Wu

et al.

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1292 - 1312

Published: Feb. 17, 2025

Language: Английский

Citations

1
Minimizing Buried Interface Energy Losses with Post‐Assembled Chelating Molecular Bridges for High‐Performance and Stable Inverted Perovskite Solar Cells DOI Open Access
Bo Yu, Kai Wang, Yapeng Sun

et al.

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

Published: March 3, 2025

Abstract Self‐assembled monolayers (SAMs) as hole‐collecting materials have made remarkable progress in inverted perovskite solar cells (PSCs). However, the incomplete coverage of SAMs and non‐intimate interface contact between perovskite/SAMs usually cause inferior characteristics significant energy losses at heterojunction interface. Herein, a post‐assembled chelating molecular bridge strategy using 5‐(9H‐carbazol‐9‐yl)isophthalicacid (CB‐PA) is developed to modify buried It found that CB‐PA can be chemically coupled with MeO‐2PACz through π–π stacking carbazole groups, chelate by forming double C═O···Pb bonds, thus constructing bridge‐connected promote carrier extraction. Simultaneously, fill voids form dense hybrid SAMs, resulting uniform surface potential improved contact. Moreover, treatment also tends induce oriented crystallization films, passivate defects, release lattice stress Consequently, CB‐PA‐based PSCs achieve champion efficiency 25.27% superior operational stability, retaining ≈94% their initial after maximum power point (MPP) tracking (65 °C) for 1000 h ISOS‐L‐2I protocol. This work provides an innovative address challenges high‐performance PSCs.

Language: Английский

Citations

1
Surface passivation with an electron-donating sulfonate group for high-performance and stable perovskite solar cells DOI
Qingquan He, Zenan Zhang,

An Chen

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(21), P. 12545 - 12551

Published: Jan. 1, 2024

A new passivator, 4-aminophenyl sulfone (APS), containing a Lewis base group (SO), could interact with the uncoordinated Pb 2+ on perovskite surface, which not only reduces trap state density but also induces more p-type surface of film.

Language: Английский

Citations

8
Boosting interfacial contact for the NiOx-based inverted perovskite solar cells via D-A type semiconductor DOI
Ting Wang, Zhe Wang, Zhaolong Ma

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 154011 - 154011

Published: July 14, 2024

Language: Английский

Citations

7
Repairing Interfacial Defects in Self‐Assembled Monolayers for High‐Efficiency Perovskite Solar Cells and Organic Photovoltaics through the SAM@Pseudo‐Planar Monolayer Strategy DOI Creative Commons

Chieh‐Ming Hung,

Chi‐Chi Wu,

Yu‐Hsuan Yang

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: July 30, 2024

Lately, carbazole-based self-assembled monolayers (SAMs) are widely employed as effective hole-selective layers (HSLs) in inverted perovskite solar cells (PSCs). Nevertheless, these SAMs tend to aggregate solvents due their amphiphilic nature, hindering the formation of a monolayer on ITO substrate and impeding passivation deep defects perovskites. In this study, series new including DPA-B-PY, CBZ-B-PY, POZ-B-PY, POZ-PY, POZ-T-PY, POZ-BT-PY synthesized, which interfacial repairers coated atop CNph SAM form robust SAM@pseudo-planar HSL efficient PSCs. The strategy enables well-aligned interface with perovskites, synergistically promoting crystal growth, improving charge extraction/transport, minimizing nonradiative recombination loss. As result, POZ-BT-PY-modified PSC realizes an impressively enhanced efficiency up 24.45% together fill factor 82.63%. Furthermore, wide bandgap achieving over 19% efficiency. Upon treatment monolayer, also demonstrates non-fullerene organic photovoltaics (OPVs) based PM6:BTP-eC9 blend, achieves 17.07%. Importantly, modified PSCs OPVs all show remarkably improved stability under various testing conditions compared control counterparts.

Language: Английский

Citations

7
Interface Regulation via an Organometallic Ferrocene-Based Molecule toward Inverted Perovskite Solar Cells DOI
Fei Wang,

Taomiao Wang,

Chuangye Ge

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(9), P. 4283 - 4292

Published: Aug. 7, 2024

There is a significant challenge of charge recombination at the perovskite/electron transport layer (ETL), coupled with need optimized interface transfer in inverted perovskite solar cells (PSCs). In this work, an organometallic ferrocene-based molecule, ferrocenyl-bis-thieno[3,2-b]thiophene-2-carboxylate (FcTTPc), inherent carboxylate and thiophene functionalities surrounding central ferrocene motif, meticulously designed synthesized for modification perovskite/ETL interface. The groups FcTTPc molecule interact strongly components, effectively passivating defects. Furthermore, group can engage robust π–π interactions ETL, thereby enhancing transport. Following FcTTPc, improved alignment energy levels achieved, significantly optimizing carrier Due to via champion PSC achieves PCE 25.39%. FcTTPc-modified devices maintained over 96% their initial efficiency under 40% relative humidity conditions 1500 h.

Language: Английский

Citations

6
Structural divergence of molecular hole selective materials for viable p-i-n perovskite photovoltaics: a comprehensive review DOI
Paramaguru Ganesan, Mohammad Khaja Nazeeruddin, Peng Gao

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(22), P. 12983 - 13058

Published: Jan. 1, 2024

This review focuses on deciphering the structural divergence of organic molecular hole selective materials in determining photovoltaic performance and stability p-i-n type perovskite solar cell devices.

Language: Английский

Citations

5