Improving Performance of Perovskite Solar Cells by Reducing Energetic Disorder of Hole Transport Polymer DOI Open Access

Xuanang Luo,

Sen Yin,

Zhihui Xiong

и другие.

Small, Год журнала: 2024, Номер unknown

Опубликована: Дек. 23, 2024

Abstract Polymer hole transport materials offer significant efficiency and stability advantages for p–i–n perovskite solar cells. However, the energetic disorder of amorphous polymer not only limits carrier but also impedes contact between perovskite, hindering formation high crystalline quality perovskites. Herein, a novel low disordered material, PF8ICz, featuring an indeno[3,2‐ b ]carbazole unit with extended π‐conjugation is designed synthesized. Analyses based on both theoretical calculations experimental validation highlight PF8ICz as material cells, including improved transport, enhanced affinity/passivation, optimized energy levels. Perovskite films formed atop exhibit superior exciton dynamics. PF8ICz‐based cells achieve remarkable power (PCE > 25.4%) outstanding (retaining 96.2% 95.0% their PCE under ISOS‐D‐3 ISOS‐L‐3 protocols over 1000 h, respectively). These findings underscore importance rational design materials, contributing to development high‐performance, stable sustainable solutions.

Язык: Английский

Electro-Photovoltaics of Grignard Metathesis-Derived Poly(propylene imine) Tetra(salicylaldimine)-co-Poly(3-hexylthiophene-2,5-diyl) Copolymer DOI Creative Commons
Morongwa E. Ramoroka, Hayelom H. Tesfay, Precious Ekwere

и другие.

Materials Chemistry and Physics, Год журнала: 2025, Номер unknown, С. 130549 - 130549

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0

Tailoring Iodide‐Capturing Molecules for High‐Performance Perovskite Solar Cells Based on P3HT DOI
Zhengjie Xu,

Jianing Wang,

Qiang Lou

и другие.

Solar RRL, Год журнала: 2025, Номер unknown

Опубликована: Фев. 26, 2025

Poly(3‐hexylthiophene) (P3HT) has attracted significant interest due to its cost‐effective synthesis, high purity, and stable film properties. However, the efficiency of perovskite solar cells is limited by energy‐level mismatches nonradiative recombination at P3HT/perovskite interface. In this study, we introduce 2,7‐dimetapyridinebenzo[4,5]thieno[3,2‐b]benzofuran (Mpy‐BTBF) small molecule, which features extended π ‐conjugation lone pair electrons from oxygen sulfur atoms. Incorporating Mpy‐BTBF into P3HT (M‐P3HT) improves charge transport passivates iodine‐related defects, achieving a power conversion (PCE) 16.36%, surpassing pristine P3HT‐based device (14.49%). With further Li salts doping, champion PCE increased 21.24 17.30%. Finally, M‐P3HT‐based devices maintained over 70% their after 600 h aging 60% relative humidity 60°C.

Язык: Английский

Процитировано

0

A Refined Dual‐Fiber Network Morphology as Printable Hole Transport Layers for High‐Performance Perovskite Solar Mini‐Modules DOI Creative Commons

Zhihui Yao,

Qin Xiang Xia, Jin Li

и другие.

Aggregate, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

ABSTRACT In the contemporary preparation of perovskite solar cells (PSCs), prevalent issue hole transport layers (HTLs) materials is frequently incompatible with large‐area deposition techniques. As area increases, this results in nonuniform HTLs, which significantly reduces efficiency and reliability device at module level. To tackle significant challenge, we propose a strategy for dual‐fiber network structure based on polymer HTLs. This involves use organic cell donor material (PM6) poly(3‐hexylthiophene) (P3HT), are spontaneously interwoven into micron‐sized fiber crystals to establish efficient carrier channels. unique not only accelerates charge extraction but also takes advantage inherent benefits polymers, such as excellent printability homogeneous film formation while enhancing protection layers. The resulting devices demonstrate V OC 1.18 champion PCE 24.90%, higher than pristine (the 22.87%). Moreover, due improved printing characteristics, PSMs prepared by blade‐coating high 15.15% within an aperture 100 cm 2 . Additionally, improves operational stability, thermal humidity stability devices.

Язык: Английский

Процитировано

0

Improving Crystallization of Wide‐Bandgap Lead Halide Perovskite for All‐perovskite Tandems DOI

Shengjie Du,

Yaxiong Guo, Chen Wang

и другие.

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 11, 2024

Abstract Wide‐bandgap (WBG) perovskite solar cells (PSCs) are crucial component of tandem (TSCs). However, the main obstacles currently faced by WBG PSCs their imperfect crystal quality, leading to large open circuit voltage ( V OC ) losses and poor stability. The use 2,5‐dibromothieno[3,2‐B] thiophene (DBrT) as an additive in enhances mitigates defects, improves stability promoting growth passivating bulk interface defects. interaction between Pb─S bonds, π–π stacking, hydrogen bonding facilitates ordered molecular arrangement, better crystallization reduced non‐radiative recombination. Meanwhile, DBrT can also spontaneously diffuse grain boundary, thus permeate top buried surfaces perovskite, further defects at interfaces reducing This strategy not only energy level alignment carrier transport but achieves a champion power conversion efficiency (PCE) 22.40% for inverted PSC with high 1.27 V. PCE 20.39% semi‐transparent devices, 28.31% 4‐terminal all‐perovskite cells, thereby offering comprehensive approach enhancing performance perovskites.

Язык: Английский

Процитировано

2

Improving Performance of Perovskite Solar Cells by Reducing Energetic Disorder of Hole Transport Polymer DOI Open Access

Xuanang Luo,

Sen Yin,

Zhihui Xiong

и другие.

Small, Год журнала: 2024, Номер unknown

Опубликована: Дек. 23, 2024

Abstract Polymer hole transport materials offer significant efficiency and stability advantages for p–i–n perovskite solar cells. However, the energetic disorder of amorphous polymer not only limits carrier but also impedes contact between perovskite, hindering formation high crystalline quality perovskites. Herein, a novel low disordered material, PF8ICz, featuring an indeno[3,2‐ b ]carbazole unit with extended π‐conjugation is designed synthesized. Analyses based on both theoretical calculations experimental validation highlight PF8ICz as material cells, including improved transport, enhanced affinity/passivation, optimized energy levels. Perovskite films formed atop exhibit superior exciton dynamics. PF8ICz‐based cells achieve remarkable power (PCE > 25.4%) outstanding (retaining 96.2% 95.0% their PCE under ISOS‐D‐3 ISOS‐L‐3 protocols over 1000 h, respectively). These findings underscore importance rational design materials, contributing to development high‐performance, stable sustainable solutions.

Язык: Английский

Процитировано

0