Current-voltage Characteristics of Water-adsorbed Imogolite Film

Bulletin of the Korean chemical society

Jin Wook Han¹  Whikun Yi¹  Sunyoung Chang¹  Jungwoo Lee¹  Jaehong Park¹  Taehee Park¹  Bongwoo Han¹ 

关键词: Imogolite;    Field effect transistor;    pH;    I-V character;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Electric current flow was observed through imogolite film when imogolite ((HO)3Al2O3SiOH) was exposed to water molecules and connected to external electrodes. Current flow was due to the bound water on the surface of imogolite. Current flow increased as the pH of the water decreased. The current-voltage (I-V) measurements from a field effective transistor (FET) using H2O/imogolite film revealed that the current carrier in H2O/ imogolite had p-type characteristics, i.e. the carrier was probably H+. The possible mechanism for current transportation in imogolite/water was also suggested in this paper.

【 授权许可】

Unknown