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Laser direct writing derived robust carbon nitride films with efficient photon-to-electron conversion for multifunctional photoelectrical applications

查看全文 作　　者：Haotian [1]Tan;Wenping [1]Si;Wei [1]Peng;Yuqing [1]Wang;Daolan [2]Liu;Liqun [3]Wang;Chongyun [4]Jiang;Lu [5]Di;Ji [1]Liang;Feng [1]Hou 高影响力作者 机构地区：[1]Institute of Advanced Ceramics,Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education,School of Materials Science and Engineering,Tianjin University,Tianjin,China;[2]Institute for Superconducting&Electronic Materials,Australian Institute of Innovative Materials,University of Wollongong,North Wollongong,New South Wales,Australia;[3]Applied Physics Department,College of Physics and Materials Science,Tianjin Normal University,Tianjin,China;[4]Institute of Photoelectronic Thin Film Devices and Techology,College of Electronic Information and Optical Engineering,Nankai University,Tianjin,China;[5]School of Materials Science and Engineering,Nankai University,Tianjin,China高影响力机构 出　　处：《Carbon Energy》索引2022年第4卷第6期,共14页高影响力期刊 基　　金：Australian Research Council,Grant/Award Number:DP200100365;National Natural Science Foundation of China,Grant/Award Numbers:21905144,21905202,22002107,22179093;Qinghai Provincial Department of Science and Technology,Grant/Award Number:2021-zj-702;Tianjin University,Grant/Award Number:2021XZC-0052。 摘　　要：Carbon nitride,an emerging polymeric semiconductor,has attracted attention in research ranging from photocatalysis to photodetection due to its favorable visible light response and high physicochemical stability.For its practical device application,the fabrication of high-quality carbon nitride films on substrates is essential.However,conventional methodologies to achieve high polymerization of carbon nitride are often accompanied by its decomposition,significantly compromising the film quality.Herein,we report an ultrafast fabrication of carbon nitride film by laser direct writing(LDW).The instantaneous high temperature and pressure during LDW can efficiently boost the polymerization of carbon nitride and suppress its decomposition,resulting in high-quality carbon nitride film with excellent mechanical stability with the substrate.Due to the efficient photon-to-electron conversion,it exhibits an outstanding photoelectrochemical water splitting and optoelectronic detection capability,even under strong acid/alkaline conditions.This study thus offers a facile and efficient LDW strategy for the rapid fabrication of carbon nitride film photoelectrodes,demonstrating its great feasibility in multifunctional photoelectrical applications,including but not limited to photoelectrochemical water splitting and optoelectronic detection. 关 键 词：carbon nitride laser direct writing PHOTODETECTORS photoelectrochemical water splitting
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