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Side-Chain Engineering of Donor-Acceptor Conjugated Small Molecules As Dopant-Free Hole-Transport Materials for Efficient Normal Planar Perovskite Solar Cells.
Tu, Bao; Wang, Yang; Chen, Wei; Liu, Bin; Feng, Xiyuan; Zhu, Yudong; Yang, Kun; Zhang, Zheng; Shi, Yongqiang; Guo, Xugang; Li, Hai-Feng; Tang, Zikang; Djurisic, Aleksandra B; He, Zhubing.
Afiliação
  • Tu B; Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG) , Southern University of Science and Technology , No. 1088, Xueyuan Rd. , Shenzhen 518055 , Guangdong , China.
  • Wang Y; Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering , University of Macau , Avenida da Universidade , Taipa , Macau SAR 999078 , China.
  • Chen W; Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG) , Southern University of Science and Technology , No. 1088, Xueyuan Rd. , Shenzhen 518055 , Guangdong , China.
  • Liu B; Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG) , Southern University of Science and Technology , No. 1088, Xueyuan Rd. , Shenzhen 518055 , Guangdong , China.
  • Feng X; Department of Physics , University of Hong Kong , Pokfulam , Hong Kong SAR 999077 , China.
  • Zhu Y; Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG) , Southern University of Science and Technology , No. 1088, Xueyuan Rd. , Shenzhen 518055 , Guangdong , China.
  • Yang K; Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG) , Southern University of Science and Technology , No. 1088, Xueyuan Rd. , Shenzhen 518055 , Guangdong , China.
  • Zhang Z; Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering , University of Macau , Avenida da Universidade , Taipa , Macau SAR 999078 , China.
  • Shi Y; Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG) , Southern University of Science and Technology , No. 1088, Xueyuan Rd. , Shenzhen 518055 , Guangdong , China.
  • Guo X; Department of Electronic and Computer Engineering , Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , Hong Kong SAR 999077 , China.
  • Li HF; Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG) , Southern University of Science and Technology , No. 1088, Xueyuan Rd. , Shenzhen 518055 , Guangdong , China.
  • Tang Z; Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG) , Southern University of Science and Technology , No. 1088, Xueyuan Rd. , Shenzhen 518055 , Guangdong , China.
  • Djurisic AB; Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG) , Southern University of Science and Technology , No. 1088, Xueyuan Rd. , Shenzhen 518055 , Guangdong , China.
  • He Z; Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG) , Southern University of Science and Technology , No. 1088, Xueyuan Rd. , Shenzhen 518055 , Guangdong , China.
ACS Appl Mater Interfaces ; 11(51): 48556-48563, 2019 Dec 26.
Article em En | MEDLINE | ID: mdl-31786921
Simultaneously improving efficiency and stability, which are particularly crucial factors for the commercialization of perovskite solar cells (PSCs), remains a major challenge. For high-efficiency normal PSCs, the development of stable dopant-free hole-transport materials (HTMs) seems imperative. Here, we developed potential donor-acceptor small molecules (BTTI) as HTMs for normal planar PSCs. Through tailoring its alkyl side-chain length as BTTI-C6, BTTI-C8, and BTTI-C12, our results show that upon shortening the side chain of BTTI, the hole mobility, film-forming capability, and resultant device performance were remarkably improved, with the device conversion efficiencies of 19.69% for BTTI-C6, 18.89% for BTTI-C8, and 17.49% for BTTI-C12. Meanwhile, compared to those made with the routine doped Spiro-OMeTAD, devices based on our dopant-free HTMs exhibited significantly improved stability. This work paves the way to the development of effective dopant-free HTMs for high-performance PSCs.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article
Texto completo
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PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article