Inorganic Nanotube/Organic Nanoparticle Hybrids for Enhanced Photoelectrochemical Properties

作     者：Yingzhi Chen Aoxiang Li Ming Jin Lu-Ning Wang Zheng-Hong Huang Yingzhi Chen Aoxiang Li Ming Jin Lu-Ning Wang Zheng-Hong H uang

作者机构：Key Laboratory of Advanced Materials （MOE） School of Materials Science and Engineering Tsinghua University Beijing 100084 China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2017年第33卷第7期

页      面：728-733页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：the National Natural Science Foundation of China (Nos. 51503014 and 51501008) the Beijing Higher Education Young Elite Teacher Project (No. YETP0419) 

主　　题：Anodic TiO_2 nanotubes Porphyrin nanoparticles Inorganic/organic nanohybrid Photoelectrochemical water splitting 

摘      要：Inorganic/organic nanohybrids composed of arrayed TiO_2 nanotubes（Ti NTs）/porphyrin nanoparticles（NPs） have been fabricated via a wet chemical approach. The inorganic component, particularly the arrayed one-dimensional（1D） nanostructures, provides high charge-carrier mobility and rapid charge transport. The organic component exhibits extensive visible light absorption and good solution processability. Additionally, the geometric restraint by supramolecular assembly renders an improved photostability. A combination of these two components could thus allow for an efficient solar energy conversion. In this work, a colloid of porphyrin NPs prepared by a solvent exchange method is coated on anodic Ti NTs by means of a dip-coating treatment to form inorganic/organic hybrids. The hybrids exhibit an improvement on solar absorption and a significant enhancement on photocurrent generation at a small bias compared with individual component. Herein, the inorganic/organic nanohybrids are proved to be excellent photoanodes highly responsive to visible light and thus pave a way to discover new inorganic/organic assemblies for high-performance optoelectronic applications, as well as for device integration.