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您的检索式：作者名="Aiqing Fan"
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| 1 | Achieving High-Performance Molecular Rectification through Fast Screening Alkanethiol Carboxylate- Metal Complexes Electroactive Units显示文摘Achieving high performance in molecular scale diode devices remains a formidable challenge due to the complexity of the charge transport process and the difficulty in device structure modulation.Herein,we demonstrated a low-cost and fast screening strategy to search for proper electroactive units and construct high performance self-assembled monolayer(SAM)-based molecular diodes.The strategy is based on off-the-shelf carboxylate-terminated alkane thiols and simple carboxylate-metal ion complexes,structures denoted as Au-S-(CH2)n-1COO−Mm+(Cn+Mm+),where n=11,12,13,14,16,18,and Mm+=Ca^(2+),Mn^(2+),Fe_(2)+,Fe3+,Co^(2+),Ni^(2+),Cu^(2+),and Zn^(2+),as the library of functional SAM layers on gold substrate.Combing the fast screening measurements using a eutectic indium-gallium alloy top contact(EGaIn),C18+Ca^(2+)and C18+Zn^(2+)structures were found to afford record high rectification ratio(RR)>700 at±1.5 V.Theoretical analysis based on a single level tunneling model shows that the C18+Ca^(2+)and C18+Zn^(2+)devices possessed an optimized combination of asymmetric voltage division,energy offset,and coupling of carboxylate-metal complexes with the electrode.This newly developed method represents a general strategy for fast,inexpensive,and effective exploration of the functional metal complex chemical space,and can largely accelerate the development of practical high performance molecular diode devices. | Lixian Tian Aiqing Fan Xi Yu Wenping Hu | 2023 | CCS Chemistry2023，5，4： | 0 |
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