Since the triboelectric nanogenerator(TENG)was invented by Prof.Zhong Lin Wang’s group in 2012,triboelectric power has gradually attracted the attention of researchers as a new energy harvesting technology.So far,TEN...Since the triboelectric nanogenerator(TENG)was invented by Prof.Zhong Lin Wang’s group in 2012,triboelectric power has gradually attracted the attention of researchers as a new energy harvesting technology.So far,TENGs have entered many fields,and have made breakthrough progress in the applications.At present,Prof.Zhong Lin Wang has pointed out that the working nature of TENG is based on the combined effect of contact electrification and displacement current[1].When related to contact electrification,although several experimental results have provided clear evidence that electrons are dominant carriers in contact electrification between solids,there is still difficulty in illustrating the contact electrification between solid and liquid purely counting on electrons.展开更多
线性链状三碘化物的研究重点主要体现在两个方面:减小碘离子之间距离,有利于电子转移;提高碘离子排列线性度,可以实现强各向异性.本文采用了一种新策略,使用链状二胺(N,N'-二甲基乙二胺,DMEDA)阳离子与三碘化物离子配位,形成一维线...线性链状三碘化物的研究重点主要体现在两个方面:减小碘离子之间距离,有利于电子转移;提高碘离子排列线性度,可以实现强各向异性.本文采用了一种新策略,使用链状二胺(N,N'-二甲基乙二胺,DMEDA)阳离子与三碘化物离子配位,形成一维线性三碘化物DMEDA·I6.相较于之前报道的三碘化物,该三碘化物相邻I3^-离子之间的距离最短,具有较好的线性度;同时具有1.36 e V的电子带隙,具有半导体性能.理论模拟和实验表征都表明该化合物具有强的各向异性.模拟预测沿a轴和垂直于a轴的吸收差异以及电子和空穴有效质量的差异最多可达100倍.我们还基于DMEDA·I6构造了一个光电导探测器,并获得了低暗电流和各向异性的光响应.DMEDA·I6的强各向异性和半导体特性使其成为偏振探测相关应用的有利竞争者.展开更多
基金This work was supported by the National Key R&D Project from the Minister of Science and Technology,China(2016YFA0202703)the National Natural Science Foundation of China(51622205,61675027,51432005,61505010,and 51502018)+2 种基金the Beijing City Committee of Science and Technology(Z171100002017019 and Z181100004418004)the Natural Science Foundation of Beijing Municipality(4181004,4182080,4184110,2184131,and Z180011)the University of Chinese Academy of Sciences.
文摘Since the triboelectric nanogenerator(TENG)was invented by Prof.Zhong Lin Wang’s group in 2012,triboelectric power has gradually attracted the attention of researchers as a new energy harvesting technology.So far,TENGs have entered many fields,and have made breakthrough progress in the applications.At present,Prof.Zhong Lin Wang has pointed out that the working nature of TENG is based on the combined effect of contact electrification and displacement current[1].When related to contact electrification,although several experimental results have provided clear evidence that electrons are dominant carriers in contact electrification between solids,there is still difficulty in illustrating the contact electrification between solid and liquid purely counting on electrons.
基金financially supported by the National Natural Science Foundation of China(51761145048,61725401 and 61704097)the Innovation Fund of WNLO and the 62th China Postdoctoral Science Foundation(2017M622418)。
文摘线性链状三碘化物的研究重点主要体现在两个方面:减小碘离子之间距离,有利于电子转移;提高碘离子排列线性度,可以实现强各向异性.本文采用了一种新策略,使用链状二胺(N,N'-二甲基乙二胺,DMEDA)阳离子与三碘化物离子配位,形成一维线性三碘化物DMEDA·I6.相较于之前报道的三碘化物,该三碘化物相邻I3^-离子之间的距离最短,具有较好的线性度;同时具有1.36 e V的电子带隙,具有半导体性能.理论模拟和实验表征都表明该化合物具有强的各向异性.模拟预测沿a轴和垂直于a轴的吸收差异以及电子和空穴有效质量的差异最多可达100倍.我们还基于DMEDA·I6构造了一个光电导探测器,并获得了低暗电流和各向异性的光响应.DMEDA·I6的强各向异性和半导体特性使其成为偏振探测相关应用的有利竞争者.
基金This work was supported by the National Natural Science Foundation of China(21975280)Shenzhen Science and Technology Research Funding(JCYJ20180507182530279)+2 种基金the Frontier Science Key Programs of Chinese Academy of Sciences(QYZDB-SSWSLH034),Guangdong Special Support Program(2017TX04C096)the Leading Talents of Guangdong Province Program(00201520)the City University of Hong Kong Strategic Research Grants(SRG,7005105 and 7005264).
基金This work was supported by the National Key Research and Development Program on Nano Science and Technology of MOST(No.2016YFA0200602 and No.2018YFA0208702)the National Natural Science Foundation of China(No.21573211 and No.21633007)the Anhui Initiative in Quantum Information Technologies(AHY090200).