@article{Wen_2022,
  abstract = {A new type of cathode interlayer composed of 2,6-di-tert-butyl-phenol-functionalized perylene bisimide (PBI-2P) is successfully applied as an electron transporting layer for fused-ring nonfullerene organic solar cells (OSCs). The stable contact between these novel electron transporting layers and the representative nonfullerene acceptor Y6 greatly enhances the device stability compared to conventional amine-group containing cathode interlayers. Moreover, the easily formed biradical species in the interlayers yields rather good thickness tolerance of the PBI-2P layer in photovoltaic devices. The OSCs based on the PBI-2P interlayer show a power conversion efficiency up to 17.20% and good stability compared to amino-group functionalized interlayers. The findings demonstrate a promising design principle for cathode interlayer engineering based on pigment chromophores equipped with the 2,6-di-tert-butylphenoxy groups that are prone to form the respective ultrastable butylphenoxy radicals for stable nonfullerene OSCs.},
  added-at = {2022-06-14T11:28:33.000+0200},
  author = {Wen, Xinbo and Zhang, Yu and Xie, Guojing and Rausch, Rodger and Tang, Ningning and Zheng, Nan and Liu, Linlin and Würthner, Frank and Xie, Zengqi},
  biburl = {https://www.bibsonomy.org/bibtex/280ba56cf9e992381ba9b8c27f7f7baf1/wuerthner_group},
  doi = {10.1002/adfm.202111706},
  interhash = {a565684dab13ea6ea6db09bef67d482d},
  intrahash = {80ba56cf9e992381ba9b8c27f7f7baf1},
  journal = {Adv. Funct. Mater.},
  keywords = {myown},
  month = {01},
  number = 17,
  pages = 2111706,
  publisher = {Wiley},
  timestamp = {2022-06-14T11:28:33.000+0200},
  title = {Phenol-Functionalized Perylene Bisimides as Amine-Free Electron Transporting Interlayers for Stable Nonfullerene Organic Solar Cells},
  url = {https://doi.org/10.1002%2Fadfm.202111706},
  volume = 32,
  year = 2022
}

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The OSCs based on the PBI-2P interlayer show a power conversion efficiency up to 17.20% and good stability compared to amino-group functionalized interlayers. The findings demonstrate a promising design principle for cathode interlayer engineering based on pigment chromophores equipped with the 2,6-di-tert-butylphenoxy groups that are prone to form the respective ultrastable butylphenoxy radicals for stable nonfullerene OSCs.","added-at":"2022-06-14T11:28:33.000+0200","author":[{"propositions":[],"lastnames":["Wen"],"firstnames":["Xinbo"],"suffixes":[]},{"propositions":[],"lastnames":["Zhang"],"firstnames":["Yu"],"suffixes":[]},{"propositions":[],"lastnames":["Xie"],"firstnames":["Guojing"],"suffixes":[]},{"propositions":[],"lastnames":["Rausch"],"firstnames":["Rodger"],"suffixes":[]},{"propositions":[],"lastnames":["Tang"],"firstnames":["Ningning"],"suffixes":[]},{"propositions":[],"lastnames":["Zheng"],"firstnames":["Nan"],"suffixes":[]},{"propositions":[],"lastnames":["Liu"],"firstnames":["Linlin"],"suffixes":[]},{"propositions":[],"lastnames":["Würthner"],"firstnames":["Frank"],"suffixes":[]},{"propositions":[],"lastnames":["Xie"],"firstnames":["Zengqi"],"suffixes":[]}],"biburl":"https://www.bibsonomy.org/bibtex/280ba56cf9e992381ba9b8c27f7f7baf1/wuerthner_group","doi":"10.1002/adfm.202111706","interhash":"a565684dab13ea6ea6db09bef67d482d","intrahash":"80ba56cf9e992381ba9b8c27f7f7baf1","journal":"Adv. Funct. Mater.","keywords":"myown","month":"01","number":"17","pages":"2111706","publisher":"Wiley","timestamp":"2022-06-14T11:28:33.000+0200","title":"Phenol-Functionalized Perylene Bisimides as Amine-Free Electron Transporting Interlayers for Stable Nonfullerene Organic Solar Cells","url":"https://doi.org/10.1002%2Fadfm.202111706","volume":"32","year":"2022","bibtex":"@article{Wen_2022,\n abstract = {A new type of cathode interlayer composed of 2,6-di-tert-butyl-phenol-functionalized perylene bisimide (PBI-2P) is successfully applied as an electron transporting layer for fused-ring nonfullerene organic solar cells (OSCs). The stable contact between these novel electron transporting layers and the representative nonfullerene acceptor Y6 greatly enhances the device stability compared to conventional amine-group containing cathode interlayers. Moreover, the easily formed biradical species in the interlayers yields rather good thickness tolerance of the PBI-2P layer in photovoltaic devices. The OSCs based on the PBI-2P interlayer show a power conversion efficiency up to 17.20% and good stability compared to amino-group functionalized interlayers. The findings demonstrate a promising design principle for cathode interlayer engineering based on pigment chromophores equipped with the 2,6-di-tert-butylphenoxy groups that are prone to form the respective ultrastable butylphenoxy radicals for stable nonfullerene OSCs.},\n added-at = {2022-06-14T11:28:33.000+0200},\n author = {Wen, Xinbo and Zhang, Yu and Xie, Guojing and Rausch, Rodger and Tang, Ningning and Zheng, Nan and Liu, Linlin and Würthner, Frank and Xie, Zengqi},\n biburl = {https://www.bibsonomy.org/bibtex/280ba56cf9e992381ba9b8c27f7f7baf1/wuerthner_group},\n doi = {10.1002/adfm.202111706},\n interhash = {a565684dab13ea6ea6db09bef67d482d},\n intrahash = {80ba56cf9e992381ba9b8c27f7f7baf1},\n journal = {Adv. Funct. 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