首页|Highly efficient and stable organic solar cells with SnO2 electron transport layer enabled by UV-curing acrylate oligomers

Highly efficient and stable organic solar cells with SnO2 electron transport layer enabled by UV-curing acrylate oligomers

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
The interfaces between the inorganic metal oxide and organic photoactive layer are of outmost impor-tance for efficiency and stability in organic solar cells(OSCs).Tin oxide(SnO2)is one of the promising can-didates for the electron transport layer(ETL)in high-performance inverted OSCs.When a solution-processed SnO2 ETL is employed,however,the presence of interfacial defects and suboptimal interfacial contact can lower the power conversion efficiency(PCE)and operational stability of OSCs.Herein,highly efficient and stable inverted OSCs by modification of the SnO2 surface with ultraviolet(UV)-curable acry-late oligomers(SAR and OCS)are demonstrated.The highest PCEs of 16.6％and 17.0％are achieved in PM6:Y6-BO OSCs with the SAR and OCS,respectively,outperforming a device with a bare SnO2 ETL(PCE 13.8％).The remarkable enhancement of PCEs is attributed to the optimized interfacial contact,leading to miti-gated surface defects.More strikingly,improved light-soaking and thermal stability strongly correlated with the interfacial defects are demonstrated for OSCs based on SnO2/UV cross-linked resins compared to OSCs utilizing bare SnO2.We believe that UV cross-linking oligomers will play a key role as interfacial modifiers in the future fabrication of large-area and flexible OSCs with high efficiency and stability.

Organic solar cellsSnO2Surface defectsUltraviolet resinsStabilityCross-linking oligomersNon-halogenated solvent

Mwende Mbilo、Du Hyeon Ryu、Seungjin Lee、Muhammad Haris、Julius Mwakondo Mwabora、Robinson Juma Musembi、Hang Ken Lee、Sang Kyu Lee、Chang Eun Song、Won Suk Shin

展开 >

Department of Physics,Faculty of Science and Technology,University of Nairobi(UoN),P.O.Box 30197-00100,Nairobi,Kenya

Advanced Energy Materials Research Center,Korea Research Institute of Chemical Technology(KRICT),Daejeon 34114,Republic of Korea

Advanced Materials and Chemical Engineering,University of Science and Technology(UST),Daejeon 34113,Republic of Korea

Partnership for Skills in Applied Sciences,Engineering and Technology(PASET)-Regional Scholarship Innovation Fund(RSIF)National Research Foundation(NRF)National Research Foundation(NRF)Korea Research Institute of Chemical Technology(KRICT)of the Republic of KoreaNational Research Council of Science and Technology of Republic of Korea

World Bank PASET IP22-15NRF-2021R1A2C2091787NRF-2022M3H4A1A03076280KS2422-10Global-23-007

2024

10.1016/j.jechem.2024.01.022

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.92(5)