Recent Progress in 2D Inorganic/Organic Charge Transfer Heterojunction Photodetectors DOI
Jiayue Han,

Fakun Wang,

Song Han

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(34)

Published: June 23, 2022

Abstract 2D materials possess superior optoelectronic properties, such as ultrahigh mobility and broadband photoresponse, making them one of the most vital platforms for diversified photodetectors. However, atomic thickness usually suffer from intrinsic low absorption. To promote photodetector performance, a feasible method is to integrate with low‐cost, flexible, tunable organics that form charge transfer (CT) heterojunction. As results, in‐depth multifunctional CT 2D‐inorganic/organic detector exhibits extended functions low‐power consumption, in‐memory detection, optical‐bio synapse meet demand contemporary photonic cell. Particularly, progresses in wafer‐scale monocrystal both organic render vast potential applications operation frequencies ranging ultraviolet terahertz. Here, recent advances photodetectors are comprehensively reviewed by several classifications. Future developments optical biology, synapsis, machine vision also highlighted.

Language: Английский

Metalated covalent organic frameworks: from synthetic strategies to diverse applications DOI
Qun Guan, Lele Zhou, Yu‐Bin Dong

et al.

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(15), P. 6307 - 6416

Published: Jan. 1, 2022

This review highlights the recent advances of metalated covalent organic frameworks, including synthetic strategies and applications, discusses current challenges future directions.

Language: Английский

Citations

214
Recent advances in n-type and ambipolar organic semiconductors and their multi-functional applications DOI
Yihan Zhang,

Yongshuai Wang,

Can Gao

et al.

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(4), P. 1331 - 1381

Published: Jan. 1, 2023

A comprehensive summary and deep insights into the synthesis, characterization multi-functional device applications of n-type ambipolar organic semiconductors are provided in this study.

Language: Английский

Citations

155
Construction of Covalent Organic Frameworks via Multicomponent Reactions DOI
Qun Guan, Lele Zhou, Yu‐Bin Dong

et al.

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(3), P. 1475 - 1496

Published: Jan. 16, 2023

Multicomponent reactions (MCRs) combine at least three reactants to afford the desired product in a highly atom-economic way and are therefore viewed as efficient one-pot combinatorial synthesis tools allowing one significantly boost molecular complexity diversity. Nowadays, MCRs no longer confined organic have found applications materials chemistry. In particular, can be used prepare covalent frameworks (COFs), which crystalline porous assembled from monomers exhibit broad range of properties applications. This synthetic approach retains advantages small-molecule MCRs, not only strengthening skeletal robustness COFs, but also providing additional driving forces for their crystallization, has been series robust COFs with diverse The present perspective article provides general background discusses types employed COF date, addresses related critical challenges future perspectives inspire MCR-based design new promote further progress this emerging field.

Language: Английский

Citations

112
Porous crystalline materials for memories and neuromorphic computing systems DOI

Guanglong Ding,

Jiyu Zhao,

Kui Zhou

et al.

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(20), P. 7071 - 7136

Published: Jan. 1, 2023

This review highlights the film preparation methods and application advances in memory neuromorphic electronics of porous crystalline materials, involving MOFs, COFs, HOFs, zeolites.

Language: Английский

Citations

94
Construction of Crystalline Nitrone-Linked Covalent Organic Frameworks Via Kröhnke Oxidation DOI
Fangyuan Kang, Xin Wang, Cailing Chen

et al.

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(28), P. 15465 - 15472

Published: July 7, 2023

Developing diverse synthetic routes to prepare various crystalline covalent organic frameworks (COFs) and enrich the family of COFs is very important highly desirable. In this research, we demonstrate that Kröhnke oxidation (originally developed carbonyl compounds) can be employed as an efficient method construct two nitrone-linked (CityU-1 CityU-2) through ingenious design polynitroso-containing precursors well exquisite control polymerization conditions. The formation structure nitrone-based linkage units have been confirmed a mode reaction. as-obtained characterized by Fourier transform infrared X-ray photoelectron spectroscopy, powder diffraction patterns, scanning electron microscopy. Notably, CityU-1 exhibits BET specific surface area 497.9 m2g-1 with I2 capture capacity 3.0 g g-1 at 75 °C. Our research would provide more chances for applications.

Language: Английский

Citations

86
Enhanced CO2 Photoreduction through Spontaneous Charge Separation in End‐Capping Assembly of Heterostructured Covalent‐Organic Frameworks DOI

Huaxing Lin,

Yuan Liu, Zirui Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(50)

Published: Oct. 13, 2022

It is well known that charge separation crucial for efficient photocatalytic solar conversion. Although some covalent-organic frameworks (COFs) exhibit visible-light harvest, the large exciton binding energies reduce their efficiencies. Herein, we developed a novel method to post-treat olefin-linked COFs with end-capping polycyclic aromatic hydrocarbons (PAHs) spontaneous separation. Interestingly, type-II heterostructure constructed in our perylene-modified which displays drastically enhanced performance CO2 reduction, an efficiency of 8-fold higher than unmodified COF. A combination electrochemical, steady-state, and time-resolved spectroscopic measurements indicates such should be attributed photoinduced heterostructure. These results illustrate feasibility engineering charge-separation properties crystalline porous at molecular level artificial photosynthesis.

Language: Английский

Citations

84
Covalent Organic Frameworks as Model Materials for Fundamental and Mechanistic Understanding of Organic Battery Design Principles DOI Creative Commons
Sattwick Haldar, Andreas Schneemann, Stefan Kaskel

et al.

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(25), P. 13494 - 13513

Published: June 12, 2023

Redox-active covalent organic frameworks (COFs) have recently emerged as advanced electrodes in polymer batteries. COFs provide ideal molecular precision for understanding redox mechanisms and increasing the theoretical charge-storage capacities. Furthermore, functional groups on pore surface of highly ordered easily accessible interaction sites, which can be modeled to establish a synergy between ex situ/in situ mechanism studies computational methods, permitting creation predesigned structure–property relationships. This perspective integrates categorizes functionalities COFs, providing deeper mechanistic investigation guest ion interactions Additionally, it highlights tunable electronic structural properties that influence activation reactions this promising electrode material.

Language: Английский

Citations

77
Covalent Organic Frameworks: Their Composites and Derivatives for Rechargeable Metal-Ion Batteries DOI Creative Commons
Bowen Sun, Zixu Sun,

Yi Yang

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 18(1), P. 28 - 66

Published: Dec. 20, 2023

Covalent organic frameworks (COFs) have attracted considerable interest in the field of rechargeable batteries owing to their three-dimensional (3D) varied pore sizes, inerratic porous structures, abundant redox-active sites, and customizable structure-adjustable frameworks. In context metal-ion batteries, these materials play a vital role electrode materials, effectively addressing critical issues such as low ionic conductivity, limited specific capacity, unstable structural integrity. However, electrochemical characteristics developed COFs still fall short practical battery requirements due inherent electronic tradeoff between capacity redox potential, unfavorable micromorphology. This review provides comprehensive overview recent advancements application COFs, COF-based composites, derivatives including lithium-ion, lithium-sulfur, sodium-ion, sodium-sulfur, potassium-ion, zinc-ion, other multivalent batteries. The operational mechanisms are elucidated, along with strategies implemented enhance properties broaden range applications.

Language: Английский

Citations

72
Aminal‐Linked Porphyrinic Covalent Organic Framework for Rapid Photocatalytic Decontamination of Mustard‐Gas Simulant DOI
Qian‐You Wang, Jing Liu,

Man Cao

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(32)

Published: June 8, 2022

Covalent organic frameworks (COFs) are appealing photocatalysts for toxic chemical degradation. Great efforts have been devoted to regulate the photocatalytic performance of COFs by tuning their building blocks, but relationship between COF linkage and photochemical properties has rarely explored. Herein, we report synthesis characterisation a novel aminal-linked porphyrinic COF, namely Por-Aminal-COF. Por-Aminal-COF (0.25 mol %) showed excellent activity toward detoxification sulfur mustard simulant with half-life (t1/2 ) 5 min, which is far lower than that traditional imine-linked Por-COF =16 min). Transient absorption spectroscopy indicated aminal linkages facilitated intersystem crossing process. Thus, higher triplet-state generation efficiency compared Por-COF, consequently promoting activation oxygen molecular singlet oxygen.

Language: Английский

Citations

71
Construction of Thiadiazole-Bridged sp2-Carbon-Conjugated Covalent Organic Frameworks with Diminished Excitation Binding Energy Toward Superior Photocatalysis DOI
Guangen Fu,

Denghui Yang,

Shunqi Xu

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(2), P. 1318 - 1325

Published: Jan. 5, 2024

Sp2-carbon-conjugated covalent organic frameworks (sp2c-COFs) have emerged as promising platforms for phototo–chemical energy conversion due to their tailorable optoelectronic properties, in-plane π-conjugations, and robust structures. However, the development of sp2c-COFs in photocatalysis is still highly hindered by limited linkage chemistry. Herein, we report a novel thiadiazole-bridged sp2c-COF (sp2c-COF-ST) synthesized thiadiazole-mediated aldol-type polycondensation. The resultant sp2c-COF-ST demonstrates high chemical stability under strong acids bases (12 M HCl or 12 NaOH). electro-deficient thiadiazole together with fully conjugated planar skeleton endows superior photoelectrochemical performance charge-carrier separation migration ability. As result, when employed photocathode, exhibits significant photocurrent up ∼14.5 μA cm–2 at 0.3 V vs reversible hydrogen electrode (RHE) visible-light irradiation (>420 nm), which much higher than those analogous COFs partial imine linkages (mix-COF-SNT ∼ 9.5 cm–2) full (imi-COF-SNNT 4.9 cm–2), emphasizing importance structure–property relationships. Further temperature-dependent photoluminescence spectra density functional theory calculations demonstrate that has smaller exciton binding well effective mass comparison mix-COF-SNT imi-COF-SNNT, suggests sp2c-conjugated enhances dissociation carrier light irradiation. This work highlights design preparation photocatalytic performance.

Language: Английский

Citations

71