具有可控光吸收特性的有序多孔ATO/Fe_(2)O_(3)复合材料的研究  

On Ordered Porous ATO/Fe_(2)O_(3)Composites With Controlled Light Absorption Properties

作　　者：王文荣 吴词 刘子嫣 WANG Wenrong;WU Ci;LIU Ziyan(College of Materials and New Energy,Chongqing University of Science and Technology,Chongqing 401331,China)

机构地区：[1]重庆科技大学材料与新能源学院,重庆401331

出　　处：《重庆科技大学学报(自然科学版)》2025年第1期6-11,共6页Journal of Chongqing University of Science and Technology(Natural Sciences Edition)

基　　金：国家自然科学基金面上项目“‘金秋砂糖桔’幼苗光受体用无铅无机双钙钛矿纳米晶的光谱调制及其靶向补光作用解析”(1217041241);重庆科技大学硕士研究生创新计划项目“光子晶体效应对光电催化性能分波段调控的研究”(YKJCX2421617)。

摘　　要：采用原子层沉积技术制备了具备高光学品质的ATO/Fe_(2)O_(3)反蛋白石结构光阳极。研究发现,反蛋白石结构显著增强了ATO/Fe_(2)O_(3)光阳极的慢光效应,提升了其光电转换效率。通过精细调控ATO/Fe_(2)O_(3)的孔径尺寸,实现了光子禁带与Fe_(2)O_(3)带隙波长的精准匹配。相较于无序多孔与平面的ATO/Fe_(2)O_(3),有序多孔ATO/Fe_(2)O_(3)光阳极光电流密度显著增大,且在490~600 nm波长范围内实现了光电转换效率的显著提升。ATO/Fe_(2)O_(3)anti-opal structure photoanodes with high optical quality were prepared by atomic layer deposition(ALD)technique.This paper finds that the anti-opal structure significantly enhances the slow-light effect and improves the photoelectric conversion efficiency(IPCE).The precise matching of the photonic forbidden band with the wavelength of the Fe_(2)O_(3)bandgap can be achieved by finely tuning the pore size.Compared with the disordered porous and planar structure of ATO/Fe_(2)O_(3),the ordered porous structure of ATO/Fe_(2)O_(3)photoanode significantly increases the photocurrent density and achieves a significant enhancement of IPCE performance in the wavelength range of 490-600 nm,providing a new pathway to improve the ability of photoelectrocatalytic decomposition of water.

关 键 词：光子晶体 多孔结构 光电催化 光电流密度 

分 类 号：TB34[一般工业技术—材料科学与工程]