In situ formation of thermoset matrices for improved stability in organic photovoltaics

被引：6

作者：

Han, Jianhua ^{[1
,2
,3
]}

Xu, Han ^{[1
]}

Sharma, Anirudh ^{[1
]}

Babics, Maxime ^{[1
]}

Bertrandie, Jules ^{[1
]}

Wang, Xunchang ^{[1
,4
]}

Hernandez, Luis Huerta ^{[1
]}

Zhang, Yongcao ^{[1
]}

Wen, Yuanfan ^{[1
]}

Villalva, Diego Rosas ^{[1
]}

Ramos, Nicolas ^{[5
]}

Paleti, Sri Harish K. ^{[1
,6
]}

Martin, Jaime ^{[5
]}

Xu, Fuzong ^{[1
]}

Troughton, Joel ^{[1
]}

Yang, Renqiang ^{[4
]}

Gorenflot, Julien ^{[1
]}

Laquai, Frederic ^{[1
]}

De Wolf, Stefaan ^{[1
]}

Baran, Derya ^{[1
]}

机构：

[1] King Abdullah Univ Sci & Technol KAUST, Mat Sci & Engn Program MSE, Phys Sci & Engn Div PSE, Thuwal 239556900, Saudi Arabia

[2] Julius Maximilians Univ Wurzburg, Inst Anorgan Chem, D-97074 Hubland, Germany

[3] Julius Maximilians Univ Wurzburg, Inst Sustainable Chem & Catalysis Boron ICB, D-97074 Hubland, Germany

[4] Jianghan Univ, Sch Optoelect Mat & Technol, Key Lab Optoelect Chem Mat & Devices, Minist Educ, Wuhan 430056, Peoples R China

[5] Univ Basque Country UPV EHU, Polymat, Ave Tolosa 72, San Sebastian 20018, Spain

[6] Chalmers Univ Technol, Dept Chem & Chem Engn, S-41296 Gothenburg, Sweden

来源：

JOULE | 2024年 / 8卷 / 10期

基金：

中国国家自然科学基金;

关键词：

ELECTRON-ACCEPTORS; THERMOMECHANICAL PROPERTIES; CHARGE-TRANSPORT; SOLAR-CELLS; POLYMER; TEMPERATURE; BLENDS; EFFICIENT; STRATEGY; MOBILITY;

D O I：

10.1016/j.joule.2024.07.008

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The performance of organic photovoltaics (OPVs) has rapidly increased. Yet, achieving long-term stability in the nano morphology and thereby sustaining device performance remains challenging. Herein, we show that incorporating in-situ-forming cross-linked thermoset (CLT) matrices into the bulk heterojunction blends is a simple, general, and efficient strategy for high-performing and resilient OPVs. Our simulations and experimental data prove that these high-modulus CLT matrices featuring hydrogen bonding interactions can freeze the nano-morphology, resulting in long-term thermal and photostable OPV devices. We demonstrate that this approach works efficiently with eight different blends and show that OPV devices can withstand 85 degrees C degrees C for 1,000 h without losing performance. Blends with CLT matrices double the energy generated from OPV devices, showing an energy density output of 4,054 mW,h , h cm- 2 over an 11-week operating period under outdoor conditions. This methodology opens avenues for both developing new thermoset networks for OPV and their use in other optoelectronic applications.

引用

页码：2883 / 2902

页数：21

共 98 条

[11] Non-fullerene acceptor photostability and its impact on organic solar cell lifetime [J].