Engineering Pyreno[1,2-b:8,7-b′]dithiophene-Based Conjugated Polymers for Efficient and Stable Perovskite Solar Cells DOI

Yaohang Cai,

Lifei He,

Lingyi Fang

и другие.

Macromolecules, Год журнала: 2024, Номер 57(22), С. 10725 - 10734

Опубликована: Ноя. 16, 2024

The advancement of p-type conjugated polymers with optimized electrical properties, morphology, and heat tolerance is essential for n-i-p-type perovskite solar cells. Herein, we present a novel polymer, p-PDT144-E, composed alternating units 4,4,7,7-tetrakis(4-hexylphenyl)-4,7-dihydropyreno[1,2-b:8,7-b′]dithiophene (PDT144) 3,4-ethylenedioxythiophene. This copolymer was synthesized via palladium-catalyzed direct arylation polycondensation method. Compared to the corresponding homopolymer p-PDT144 by oxidative polymerization, p-PDT144-E exhibited an elevated highest occupied molecular orbital energy level, facilitating faster hole extraction enhanced conductivity. Additionally, demonstrated increased glass temperature more uniform film morphology. When used as transport material along air doping promoter 4-(tert-butyl)pyridinium 1,1,2,2,3,3-hexafluoropropane-1,3-disulfonimide, cells incorporating achieved average power conversion efficiency (PCE) 25.5%, surpassing reference using spiro-OMeTAD (average PCE 24.7%) under identical conditions. Furthermore, p-PDT144-E-based excellent operational stability at 45 °C thermal storage 85 °C.

Язык: Английский

Graphene-polymer reinforcement of perovskite lattices for durable solar cells DOI

Qing Li,

Yichu Zheng, Haonan Wang

и другие.

Science, Год журнала: 2025, Номер 387(6738), С. 1069 - 1077

Опубликована: Март 6, 2025

The lattice deformation and structural evolution of perovskite films in response to electric fields, temperature, light limit the operational endurance solar cells. We mechanically reinforced thin by integrating a polymer-coupled monolithic single-layer graphene interface that led twofold enhancement modulus hardness. synergistic effect poly(methyl methacrylate) restricted photoinduced expansion decreased ratio from 0.31 0.08%, which minimized damage caused dynamic evolution. Solar cell devices maintained >97% their initial power conversion efficiency after maximum point tracking for >3670 hours under full-spectrum air mass 1.5 global (AM G) sunlight at 90°C.

Язык: Английский

Процитировано

2
Stability and reliability of perovskite photovoltaics: Are we there yet? DOI Creative Commons
Kenedy Tabah Tanko, Zhen Tian, Sonia R. Raga

и другие.

MRS Bulletin, Год журнала: 2025, Номер unknown

Опубликована: Март 18, 2025

The power-conversion efficiency (PCE) of perovskite solar cells (PSCs) has exceeded in 2024 the theoretical single-junction Shockley-Queisser limit 33.7% with perovskite/silicon tandem version. commercialization technology is now a reality PV industry demonstrating its first commercial products. Many companies have shown excellent module reliability most them passing IEC standardization (required for silicon cells). In this article, we want to bring some light on intriguing question regarding stability and PSC technology: Are there yet? Issues are still under strong investigation research topic increased exponentially last 10 years. Since already promised their modules, 80% retention initial PCE after 25 years, following two or three years will be crucial demonstrate these pledges. work, present an outline stable devices reported date discuss important strategies leading highly devices. online version contains supplementary material available at 10.1557/s43577-025-00863-5.

Язык: Английский

Процитировано

1
Heterogeneous Amine with Polycyclic‐Aromatics‐Modified Hole Transport Material for Efficient and Operationally Durable Perovskite Solar Cells DOI Open Access

Yang Luo,

Tianyu Li,

Lifei He

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 10, 2024

Abstract Achieving efficient perovskite solar cells (PSCs) with high operational durability is a challenging task. Here, by exploiting the heterogeneous amine strategy at molecular level, novel spirobifluorene derivative bearing methoxynaphthalene and 9,9‐dimethylfluorene peripheral groups ( N 2 , 2′ 7 7′ ‐tetrakis(9,9‐dimethyl‐9 H ‐fluoren‐2‐yl)‐ ‐tetrakis(6‐methoxynaphthalen‐2‐yl)‐9,9′‐spirobi[fluorene]‐2,2′,7,7′‐tetraamine, denoted as Spiro‐NADF) hole transport material (HTM) developed to address efficiency issues of PSCs. Compared 2,2′,7,7′‐tetrakis( ‐di‐ p ‐methoxyphenyl)‐amine‐9,9′‐spirobifluorene, Spiro‐NADF exhibits not only favorable energy level alignment but also higher glass transition temperature strong adhesion perovskite. Moreover, Spiro‐NADF‐based layer shows excellent morphological stability in devices against damp heat stress. These advantages reduce voltage loss suppress decomposition ion migration. Consequently, PSCs based on exhibit champion 24.66% an open‐circuit 1.19 V. The corresponding show greatly enhanced harsh environments, retaining over 92% initial efficiencies for 500 h aging under test (85 °C 70–90% relative humidity) illumination maximum power point tracking, respectively. This work demonstrates that engineering HTMs using amines polycyclic aromatics leaves considerable room developing stable

Язык: Английский

Процитировано

3
Integration of Microstructural Image Data into Machine Learning Models for Advancing High-Performance Perovskite Solar Cell Design DOI
Haotian Liu,

Antai Yang,

Chengquan Zhong

и другие.

ACS Energy Letters, Год журнала: 2025, Номер unknown, С. 1884 - 1891

Опубликована: Март 26, 2025

Язык: Английский

Процитировано

0
Mitigating Carrier and Energy Losses via Interface Modulator Toward High‐Performance Perovskite Solar Cells DOI
Wangchao Chen, Xuan Chen,

S.J. Wang

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 23, 2025

Abstract Interface engineering has become the main force in reforming photogenerated carrier and energy losses perovskite solar cells (PSCs). Here, a multifaceted hole‐selective molecule C‐DPT, is designed synthesized with methoxy‐triphenylamine‐carbazole diphenyl‐triazine units, which employed as interface modulator between hole transport layer. The introduction of C‐DPT endows perovskite/hole layer heterojunction more flat physical contact, lower trap density, faster extraction. combined theoretical experimental results decipher that possessing compatible contact favorable binding ability can efficiently boost interfacial defect restoration, compensate energetic offset, promote transportation. As result, C‐DPT‐modified PSC delivers champion power conversion efficiency 24.02% conjunction pronouncedly improved long‐term ambient, thermal, humidity stability.

Язык: Английский

Процитировано

0
A Phenoxazine-Based Alternating Copolymer for Efficient and Durable Perovskite Solar Cells DOI

Bing Zhang,

Lifei He,

Lingyi Fang

и другие.

ACS Energy Letters, Год журнала: 2024, Номер 9(9), С. 4572 - 4580

Опубликована: Авг. 26, 2024

Developing cost-effective p-type semiconducting polymers with desirable electrical properties and thermal tolerance is essential for the practical application of n-i-p type perovskite solar cells. In this study, we synthesized a copolymer, p-POZOD-ENEM, via direct arylation polycondensation. This copolymer features an alternating main chain phenoxazine, ethylenedioxythiophene, dimethoxynaphthalene, ethylenedioxythiophene. The theoretical HOMO energy level p-POZOD-ENEM 70 meV deeper than that homopolymer poly(10-(2-octyldodecyl)phenoxazine-3,7-diyl) (p-POZOD), yet both are comparable to established material spiro-OMeTAD. Furthermore, exhibits higher glass transition temperature, hole mobility, conductivity p-POZOD spiro-OMeTAD, along enhanced film morphology. Perovskite cells utilizing as transport achieved average power conversion efficiency 25.0% maintained good stability under storage at 85 °C operation 45 °C.

Язык: Английский

Процитировано

1
An alternating copolymer of phenothiazine and ethylenedioxythiophene for perovskite solar cells: effects of flexible and rigid substituent alternation DOI Creative Commons

Bing Zhang,

Yaohang Cai,

Lifei He

и другие.

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Alternation of flexible and rigid substituents improved the hole mobility morphology composite films in copolymers phenothiazine ethylenedioxythiophene, boosting performance perovskite solar cells.

Язык: Английский

Процитировано

0
Engineering Pyreno[1,2-b:8,7-b′]dithiophene-Based Conjugated Polymers for Efficient and Stable Perovskite Solar Cells DOI

Yaohang Cai,

Lifei He,

Lingyi Fang

и другие.

Macromolecules, Год журнала: 2024, Номер 57(22), С. 10725 - 10734

Опубликована: Ноя. 16, 2024

The advancement of p-type conjugated polymers with optimized electrical properties, morphology, and heat tolerance is essential for n-i-p-type perovskite solar cells. Herein, we present a novel polymer, p-PDT144-E, composed alternating units 4,4,7,7-tetrakis(4-hexylphenyl)-4,7-dihydropyreno[1,2-b:8,7-b′]dithiophene (PDT144) 3,4-ethylenedioxythiophene. This copolymer was synthesized via palladium-catalyzed direct arylation polycondensation method. Compared to the corresponding homopolymer p-PDT144 by oxidative polymerization, p-PDT144-E exhibited an elevated highest occupied molecular orbital energy level, facilitating faster hole extraction enhanced conductivity. Additionally, demonstrated increased glass temperature more uniform film morphology. When used as transport material along air doping promoter 4-(tert-butyl)pyridinium 1,1,2,2,3,3-hexafluoropropane-1,3-disulfonimide, cells incorporating achieved average power conversion efficiency (PCE) 25.5%, surpassing reference using spiro-OMeTAD (average PCE 24.7%) under identical conditions. Furthermore, p-PDT144-E-based excellent operational stability at 45 °C thermal storage 85 °C.

Язык: Английский

Процитировано

0