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2篇 您的检索式:作者名="Aram Amassian"
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1Perovskite Solar Cells toward Eco-Friendly Printing显示文摘Eco-friendly printing is important for mass manufacturing of thin-film photovoltaic(PV)devices to preserve human safety and the environment and to reduce energy consumption and capital expense.However,it is challenging for perovskite PVs due to the lack of eco-friendly solvents for ambient fast printing.In this study,we demonstrate for the first time an eco-friendly printing concept for high-performance perovskite solar cells.Both the perovskite and charge transport layers were fabricated from eco-friendly solvents via scalable fast blade coating under ambient conditions.The perovskite dynamic crystallization during blade coating investigated using in situ grazing incidence wide-angle X-ray scattering(GIWAXS)reveals a long sol-gel window prior to phase transformation and a strong interaction between the precursors and the eco-friendly solvents.The insights enable the achievement of high quality coatings for both the perovskite and charge transport layers by controlling film formation during scalable coating.The excellent optoelectronic properties of these coatings translate to a power conversion efficiency of 18.26%for eco-friendly printed solar cells,which is on par with the conventional devices fabricated via spin coating from toxic solvents under inert atmosphere.The eco-friendly printing paradigm presented in this work paves the way for future green and highthroughput fabrication on an industrial scale for perovskite PVs.Xiaoming Chang Yuanyuan Fan Kui Zhao Junjie Fang Dongle Liu Ming-Chun Tang Dounya Barrit Detlef-MSmilgies Ruipeng Li Jing Lu Jianbo Li Tinghuan Yang Aram Amassian Zicheng Ding Yonghua Chen Shengzhong(Frank)Liu Wei Huang 2021Research2021,,1:1
2Impressive near-infrared brightness and singlet oxygen generation from strategic lanthanide-porphyrin double-decker complexes in aqueous solution显示文摘Although lanthanide double-decker complexes with hetero-macrocyclic ligands as functional luminescent and magnetic materials have promising properties,their inferior water solubility has negated their biomedical applications.Herein,four water-soluble homoleptic lanthanide(Ln=Gd,Er,Yb and La)sandwiches with diethylene-glycoldisubstituted porphyrins(DD)are reported,with their structures proven by both quantum chemical calculations and scanning tunneling microscopy.Our findings demonstrate that the near-infrared emission intensity and singlet oxygen(1O2)quantum yields of YbDD and GdDD in aqueous media are higher than those of the reported capped lanthanide monoporphyrinato analogues,YbN and GdN;the brightness and luminescence lifetime in water of YbDD are greater than those of YbN.This work provides a new dimension for the future design and development of molecular theranostics-based water-soluble double-decker lanthanide bisporphyrinates.Jing-Xiang Zhang Wai-Lun Chan Chen Xie Yan Zhou Ho-Fai Chau Partha Maity George T.Harrison Aram Amassian Omar F.Mohammed Peter A.Tanner Wai-Kwok Wong Ka-Leung Wong 2019Light(Science & Applications)2019,8,1:1
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