Organic heterostructures(OHSs)consist of organic micro/nanocrystals are of essential importance for the construction of integrated optoelectronics in the future.However,the scarcity of materials and the problem of pha...Organic heterostructures(OHSs)consist of organic micro/nanocrystals are of essential importance for the construction of integrated optoelectronics in the future.However,the scarcity of materials and the problem of phase separation still hinder the fine synthesis of OHSs.Herein,based on theαphase one-dimensional(1D)microrods and theβphase 2D microplates of one organic compound 3,3′-((1 E,1′E)-anthracene-9,10-diylbis(ethane-2,1-diyl))dibenzonitril(m-B2BCB),we facilely synthesized the OHSs composed of these two polymorph phases,whose growth mechanism is attributed to the low lattice mismatch rate of5.8%between(001)plane ofαphase(trunk)and(010)crystal plane ofβphase(branch).Significantly,the multiport in/output channels can be achieved in the OHSs,which demonstrates the structure-dependent optical signals with the different output channels in the OHSs.Therefore,our experiment exhibits the great prospect of polymorphism in OHSs,which could provide further applications on multifunctional organic integrated photonics circuits.展开更多
The precise control of multicomponent complex topological configurations integrating more than one compound or one crystal phase with high spatial and angular precision is extremely challenging due to anisotropic nonc...The precise control of multicomponent complex topological configurations integrating more than one compound or one crystal phase with high spatial and angular precision is extremely challenging due to anisotropic noncovalent interaction and undesirable phase separation.Herein,we present a superstacking self-assembly approach via noncovalent interaction strength(|EBGP-TCNB(−3.14 kcal mol−1)|>|EBGP-TFP(−2.84 kcal mol−1)|>|EBGP-OFN(−2.15 kcal mol−1)|>|EBGP(−1.33 kcal mol−1)|)adjustment for the fine synthesis of molecular heterostructures with various photophysical properties and lowdimensional morphologies,as well as phase heterostructures with multifunctional optoelectrical characteristics and multidimensional morphologies.Notably,the anisotropic noncovalent interaction and lattice matching principle facilitate the sequential crystallization and horizontal/longitudinal growth in the crystal-puzzle process,respectively.This super-stacking self-assembly approach is amenable to precise design and fine synthesis of desirable organic multicomponent complex topological configurations for integrated optoelectronics.展开更多
基金supported by the National Natural Science Foundation of China(21703148,21971185)the Natural Science Foundation of Jiangsu Province(BK20170330)+2 种基金the Collaborative Innovation Center of Suzhou Nano Science and Technology(CIC-Nano)the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)the“111”Project of the State Administration of Foreign Experts Affairs of China。
文摘Organic heterostructures(OHSs)consist of organic micro/nanocrystals are of essential importance for the construction of integrated optoelectronics in the future.However,the scarcity of materials and the problem of phase separation still hinder the fine synthesis of OHSs.Herein,based on theαphase one-dimensional(1D)microrods and theβphase 2D microplates of one organic compound 3,3′-((1 E,1′E)-anthracene-9,10-diylbis(ethane-2,1-diyl))dibenzonitril(m-B2BCB),we facilely synthesized the OHSs composed of these two polymorph phases,whose growth mechanism is attributed to the low lattice mismatch rate of5.8%between(001)plane ofαphase(trunk)and(010)crystal plane ofβphase(branch).Significantly,the multiport in/output channels can be achieved in the OHSs,which demonstrates the structure-dependent optical signals with the different output channels in the OHSs.Therefore,our experiment exhibits the great prospect of polymorphism in OHSs,which could provide further applications on multifunctional organic integrated photonics circuits.
基金support from the National Natural Science Foundation of China(nos.21703148 and 21971185)the Natural Science Foundation of Jiangsu Province(BK20170330)+3 种基金the National Postdoctoral Program for Innovative Talents(no.BX20190228)this project is also funded by the Collaborative Innovation Center of Suzhou Nano Science and Technology(CIC-Nano)the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)by the“111”Project of The State Administration of Foreign Experts Affairs of China.
文摘The precise control of multicomponent complex topological configurations integrating more than one compound or one crystal phase with high spatial and angular precision is extremely challenging due to anisotropic noncovalent interaction and undesirable phase separation.Herein,we present a superstacking self-assembly approach via noncovalent interaction strength(|EBGP-TCNB(−3.14 kcal mol−1)|>|EBGP-TFP(−2.84 kcal mol−1)|>|EBGP-OFN(−2.15 kcal mol−1)|>|EBGP(−1.33 kcal mol−1)|)adjustment for the fine synthesis of molecular heterostructures with various photophysical properties and lowdimensional morphologies,as well as phase heterostructures with multifunctional optoelectrical characteristics and multidimensional morphologies.Notably,the anisotropic noncovalent interaction and lattice matching principle facilitate the sequential crystallization and horizontal/longitudinal growth in the crystal-puzzle process,respectively.This super-stacking self-assembly approach is amenable to precise design and fine synthesis of desirable organic multicomponent complex topological configurations for integrated optoelectronics.
