Low Voltage Operable Eco-Friendly Water-Induced LiOx Dielectric Based Organic Field Effect Transistor

被引：5
作者：
Kumar, Prashant [1 ]
Mishra, Vishwambahar Nath [1 ]
Prakash, Rajiv [2 ,3 ]
机构：
[1] Indian Inst Technol BHU Varanasi, Dept Elect Engn, Varanasi 221005, India
[2] IIT BHU, Sch Mat Sci & Technol, Varanasi 221005, India
[3] Indian Inst Technol Bhilai IIT Bhilai, Raipur 492015, India
来源：
IEEE ELECTRON DEVICE LETTERS | 2023年 / 44卷 / 04期
关键词：
Low voltage; organic field effect transistors; water-induced lithium oxide (LiOx) dielectric; THIN-FILM TRANSISTORS; GATE DIELECTRICS; NANO-HYBRID; STABILITY; EXPLORATION; FABRICATION; AMMONIA; DRIVEN;
D O I：
10.1109/LED.2023.3250821
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, we report water-induced Lithium oxide (LiOx) based Organic field effect transistors with operating voltage under -2 V which combine the advantages of the floating film transfer method by using water as a liquid substrate for a self-assembled poly [2,5-(2-octyldodecyl)-3,6-diketopyrrolopyrrole-alt-5,5-(2, 5di (thien-2-yl)thieno [3,2-b]-thiophene)] (DPP-DTT) semiconducting layer. The devices demonstrated maximum saturation mobility (mu(max)) of 0.184 cm(2) V(-1)sec(-1), average mobility (mu(avg)) of 0.14 (+/- 0.035) cm(2) V(-1)sec(-1), I-ON/I-OFF ratio of similar to 10(4), and threshold voltage (V-TH) of similar to 1.12 (+/- 0.3) V. The devices exhibited a subthreshold swing of 186 (+/- 15) mV/decade and a surface trap density (N-ss of 4.63 (+/- 0.42) x 10(12) cm(-2).eV(-1). Deionized water is used for making the precursor solution of lithium oxide from lithium nitrate without using any toxic additive, making it low cost and eco-friendly synthesis. LiOx based dielectric processed at 300 degrees C showed leakage current density of 1.6 x 10(-8) A/cm(2) at 1 MV/cm and capacitance of 380 (+/- 18) nF/cm(2).
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页码：638 / 641
页数：4
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