Photoelectronic Porous Covalent Organic Materials: Research Progress and Perspective

Abstract

Porous covalent organic materials (COM) are a class of multi-dimensional and multi-functional porous materials, which are built via covalent bond of colorful organic building blocks. COM materials possess inherent optimized pore size allowing ion migration, and high specific surface area, providing the possibility of formation of an electrostatic charge-separation layer, a conjugated system resulting in light-harvesting properties and a highly ordered structure, enabling the formation of conductive paths. In this review, we summary the applications on semiconductor, photolysis of water, solar cell, oxygen reduction reaction in fuel cell, lithium-ion/sulfur battery basing on COM materials. Meanwhile, we also propose the design strategy for photoelectronic materials. Although the development of COMs as photoelectronic materials is still in its infancy, COM materials has being attracting ever-increasing attention and open a new window in this field.

Recent Advances in High-Mobility Polymeric Semiconductor Materials

“…2006 年, McCulloch 等 , 同时该器件还表现出优越的 空气稳定性和操作稳定性. 聚噻吩乙烯(PTV)是另一类经典的聚噻吩半导体材 料, 被广泛应用于有机光电子学领域中 [1][2][3][4] . 近年来, 双…”

Self N-Doped Porous Interconnected Carbon Nanosheets Material for Supercapacitors

“…近年来, 生物质碳材料由于低成本、环保 并具有天然分级结构引起了广泛的关注 [8,9] . 与此同时, 为了提高超级电容器的比电容, 杂原子掺杂 [10～12] , 如将 氮、硼、硫引入碳晶格中, 从而在碳材料没有明显破坏 的基础上改善其浸润性和导电性, 同时也能增加额外的 赝电容 [13] , 其中效果最明显的是氮原子掺杂, 能提高碳 材料的润湿性、导电性, 增加反应活性位点并形成电子 供体, 从而带来良好的循环稳定性 [14] . 然而, 碳材料掺 …”

Rationally Designed 2D Covalent Organic Framework with a Brick-Wall Topology

“…Unlike the main body of COF frameworks reported to-date, which consists of higher-symmetry 2D topologies, the unconventional layered brick-wall topology have only been proposed but never been realized experimentally. The brick-wall structure was characterized by powder X-ray diffraction analysis, FT-IR, solid state 13 C NMR spectroscopy, nitrogen and carbon oxide adsorption−desorption measurements as well as theoretical simulations. Our present work opens the door to the design of novel 2D COFs and will broaden the scope of emerging COF materials.…”

“…11g Unconventional 2D COF topologies, such as these low-symmetry herringbone (Scheme 1d) or brick-wall networks (Scheme 1e), in principle can be assembled from T-shaped building blocks 13 but have never been realized experimentally. The combination of a T-shaped building block with a linear linker may theoretically produce a variety of possible networks, among which brick-wall and herringbone 2D COFs are the two most plausible ones as such topological structures have been frequently observed in the crystal structures of metal organic frameworks (MOFs).…”