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作者：Vento-Tormo, Roser
作者单位：Wellcome Trust Sanger Institute; University of Cambridge
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作者：Obradovic, Aleksandar
作者单位：Columbia University; NewYork-Presbyterian Hospital
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作者：Peng, Wei; Mao, Kaitian; Cai, Fengchun; Meng, Hongguang; Zhu, Zhengjie; Li, Tieqiang; Yuan, Shaojie; Xu, Zijian; Feng, Xingyu; Xu, Jiahang; McGehee, Michael D.; Xu, Jixian
作者单位：Chinese Academy of Sciences; University of Science & Technology of China, CAS; University of Colorado System; University of Colorado Boulder
摘要：Inserting an ultrathin low-conductivity interlayer between the absorber and transport layer has emerged as an important strategy for reducing surface recombination in the best perovskite solar cells. However, a challenge with this approach is a trade-off between the open-circuit voltage (Voc) and the fill factor (FF). Here, we overcame this challenge by introducing a thick (about 100 nanometers) insulator layer with random nanoscale openings. We performed drift-diffusion simulations for cells ...
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作者：Berger, Shelley L.
作者单位：University of Pennsylvania; University of Pennsylvania; University of Pennsylvania; University of Pennsylvania; University of Pennsylvania
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作者：Krebs, Zachary J.; Behn, Wyatt A.; Li, Songci; Smith, Keenan J.; Watanabe, Kenji; Taniguchi, Takashi; Levchenko, Alex; Brar, Victor W.
作者单位：University of Wisconsin System; University of Wisconsin Madison; National Institute for Materials Science; National Institute for Materials Science
摘要：The charge carriers in a material can, under special circumstances, behave as a viscous fluid. In this work, we investigated such behavior by using scanning tunneling potentiometry to probe the nanometer-scale flow of electron fluids in graphene as they pass through channels defined by smooth and tunable in-plane p-n junction barriers. We observed that as the sample temperature and channel widths are increased, the electron fluid flow undergoes a Knudsen-to-Gurzhi transition from the ballistic...
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作者：Li, Chongwen; Wang, Xiaoming; Bi, Enbing; Jiang, Fangyuan; Park, So Min; Li, You; Chen, Lei; Wang, Zaiwei; Zeng, Lewei; Chen, Hao; Liu, Yanjiang; Grice, Corey R.; Abudulimu, Abasi; Chung, Jaehoon; Xian, Yeming; Zhu, Tao; Lai, Huagui; Chen, Bin; Ellingson, Randy J.; Fu, Fan; Ginger, David S.; Song, Zhaoning; Sargent, Edward H.; Yan, Yanfa
作者单位：University System of Ohio; University of Toledo; University System of Ohio; University of Toledo; University of Washington; University of Washington Seattle; University of Toronto; University System of Ohio; University of Toledo; Swiss Federal Institutes of Technology Domain; Swiss Federal Laboratories for Materials Science & Technology (EMPA); Northwestern University; Northwestern University
摘要：Lewis base molecules that bind undercoordinated lead atoms at interfaces and grain boundaries (GBs) are known to enhance the durability of metal halide perovskite solar cells (PSCs). Using density functional theory calculations, we found that phosphine-containing molecules have the strongest binding energy among members of a library of Lewis base molecules studied herein. Experimentally, we found that the best inverted PSC treated with 1,3-bis(diphenylphosphino)propane (DPPP), a diphosphine Le...
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作者：He, P. Cody; Wei, Jiangbo; Dou, Xiaoyang; Harada, Bryan T.; Zhang, Zijie; Ge, Ruiqi; Liu, Chang; Zhang, Li-Sheng; Yu, Xianbin; Wang, Shuai; Lyu, Ruitu; Zou, Zhongyu; Chen, Mengjie; He, Chuan
作者单位：University of Chicago; University of Chicago; University of Chicago; Howard Hughes Medical Institute; Yunnan University; University of Chicago; University of Chicago; University of Chicago; University of California System; University of California San Diego
摘要：N-6-methyladenosine (m6A) is the most abundant messenger RNA (mRNA) modification and plays crucial roles in diverse physiological processes. Using a massively parallel assay for m6A (MPm(6)A), we discover that m(6)A specificity is globally regulated by suppressors that prevent m6A deposition in unmethylated transcriptome regions. We identify exon junction complexes (EJCs) as m(6)A suppressors that protect exon junction-proximal RNA within coding sequences from methylation and regulate mRNA sta...
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作者：Voosen, Paul
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作者：Normile, Dennis
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作者：Service, Robert F.
