化学
异烟酸
链条(单位)
维数之咒
结晶学
立体化学
纳米技术
有机化学
材料科学
酰肼
物理
天文
机器学习
计算机科学
作者
Zhaofeng Wu,Chuanzhe Wang,Xing-Wu Liu,Kui Tan,Zhaoming Fu,Simon J. Teat,Ziwei Li,Xiuze Hei,Xiao‐Ying Huang,Gang Xu,Jing Li
摘要
Herein, we present a new series of CuI-based hybrid materials with tunable structures and semiconducting properties. The CuI inorganic modules can be tailored into a one-dimensional (1D) chain and two-dimensional (2D) layer and confined/stabilized in coordination frameworks of potassium isonicotinic acid (HINA) and its derivatives (HINA-R, R = OH, NO2, and COOH). The resulting CuI-based hybrid materials exhibit interesting semiconducting behaviors associated with the dimensionality of the inorganic module; for instance, the structures containing the 2D-CuI module demonstrate significantly enhanced photoconductivity with a maximum increase of five orders of magnitude compared to that of the structures containing the 1D-CuI module. They also represent the first CuI-bearing hybrid chemiresistive gas sensors for NO2 with boosted sensing performance and sensitivity at multiple orders of magnitude over that of the pristine CuI. Particularly, the sensing ability of CuI-K-INA containing both 1D- and 2D-CuI modules is comparable to those of the best NO2 chemiresistors reported thus far.
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