%0 Journal Article %1 li2018insitu %A Li, Xiaodong %A Zhang, Wenxiao %A Wang, Ying-Chiao %A Zhang, Wenjun %A Wang, Hai-Qiao %A Fang, Junfeng %D 2018 %J Nature Communications %K cross efficient linking perovskite stable strategy %N 1 %P 3806-- %R 10.1038/s41467-018-06204-2 %T In-situ cross-linking strategy for efficient and operationally stable methylammoniun lead iodide solar cells %U https://doi.org/10.1038/s41467-018-06204-2 %V 9 %X Long-term operational stability is the foremost issue delaying the commercialization of perovskite solar cells (PSCs). Here we demonstrate an in-situ cross-linking strategy for operationally stable inverted MAPbI3 PSCs through the incorporation of a cross-linkable organic small molecule additive trimethylolpropane triacrylate (TMTA) into perovskite films. TMTA can chemically anchor to grain boundaries and then in-situ cross-link to a robust continuous network polymer after thermal treatment, thus enhancing the thermal, water-resisting and light-resisting properties of organic/perovskite films. As a result, the cross-linked PSCs exhibit 590-fold improvement in operational stability, retaining nearly 80% of their initial efficiency after continuous power output for 400 h at maximum power point under full-sun AM 1.5 G illumination of Xenon lamp without any UV-filter. In addition, under moisture or thermal (85 °C) conditions, cross-linked TMTA-based PSCs also show excellent stability with over 90% of their initial or post burn-in efficiency after aging for over 1000 h.

@article{li2018insitu, abstract = {Long-term operational stability is the foremost issue delaying the commercialization of perovskite solar cells (PSCs). Here we demonstrate an in-situ cross-linking strategy for operationally stable inverted MAPbI3 PSCs through the incorporation of a cross-linkable organic small molecule additive trimethylolpropane triacrylate (TMTA) into perovskite films. TMTA can chemically anchor to grain boundaries and then in-situ cross-link to a robust continuous network polymer after thermal treatment, thus enhancing the thermal, water-resisting and light-resisting properties of organic/perovskite films. As a result, the cross-linked PSCs exhibit 590-fold improvement in operational stability, retaining nearly 80% of their initial efficiency after continuous power output for 400 h at maximum power point under full-sun AM 1.5 G illumination of Xenon lamp without any UV-filter. In addition, under moisture or thermal (85 °C) conditions, cross-linked TMTA-based PSCs also show excellent stability with over 90% of their initial or post burn-in efficiency after aging for over 1000 h.}, added-at = {2018-09-19T13:58:25.000+0200}, author = {Li, Xiaodong and Zhang, Wenxiao and Wang, Ying-Chiao and Zhang, Wenjun and Wang, Hai-Qiao and Fang, Junfeng}, biburl = {https://www.bibsonomy.org/bibtex/2bd91753415c1ffae143776ec5b2b8341/sere}, doi = {10.1038/s41467-018-06204-2}, interhash = {f13fff601e447968c1a099e93d40380a}, intrahash = {bd91753415c1ffae143776ec5b2b8341}, issn = {20411723}, journal = {Nature Communications}, keywords = {cross efficient linking perovskite stable strategy}, number = 1, pages = {3806--}, refid = {Li2018}, timestamp = {2018-09-19T13:58:25.000+0200}, title = {In-situ cross-linking strategy for efficient and operationally stable methylammoniun lead iodide solar cells}, url = {https://doi.org/10.1038/s41467-018-06204-2}, volume = 9, year = 2018 }