Title :
Biodegradable Junctionless Transistors With Extremely Simple Structure
Author :
Jie Guo ; Jingquan Liu ; Bin Yang ; Guanghui Zhan ; Longjun Tang ; Hongchang Tian ; Xiaoyang Kang ; Huiling Peng ; Xiang Chen ; Chunsheng Yang
Author_Institution :
Dept. of Micro/ Nanoelectron., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
Biodegradable junctionless transistors with extremely simple structure are fabricated at room temperature. The free-standing sodium alginate membrane is used as both a substrate and a dielectric layer for the transistors. The source/drain electrodes and the channel region are made of one single patterned Al:ZnO (AZO) thin film. The proposed transistors can be operated at a low voltage of 1 V. Dissolution tests of those transistors in deionized water demonstrate their completely physical transience within 60 min. The operation mode of such transistors can effectively be tuned from the depletion mode to the enhancement mode by varying the thickness of the AZO film. Moreover, a resistor-loaded invertor was demonstrated by connecting those transistors in series with a 3 MΩ resistor.
Keywords :
II-VI semiconductors; aluminium; dielectric materials; electrochemical electrodes; invertors; resistors; semiconductor thin films; thin film transistors; wide band gap semiconductors; zinc compounds; ZnO:Al; biodegradable junctionless transistors; channel region; deionized water; depletion mode; dielectric layer; dissolution tests; enhancement mode; extremely simple structure; free-standing sodium alginate membrane; one single patterned AZO thin film; resistance 3 Mohm; resistor-loaded invertor; source-drain electrodes; substrate; temperature 293 K to 298 K; Arrays; Biomembranes; Films; Logic gates; Substrates; Transistors; Junctionless transistors; biodegradable transistors; free-standing sodium alginate membrane;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2015.2451672
