Ionic Conductive Cellulose Mats by Solution Blow Spinning as Substrate and a Dielectric Interstrate Layer for Flexible Electronics

Author(s):Show less -

Claro, Pedro I. C. ^{[1, 2, 3]} ; Cunha, Ines ^{[1, 3]} ; Paschoalin, Rafaella T. ^[4] ; Gaspar, Diana ^{[1, 3]} ; Miranda, Kelvi ^[5] ; Oliveira Jr, Osvaldo N. ; Martins, Rodrigo ^{[1, 3]} ; Pereira, Luis ^{[1, 3]} ; Marconcini, Jose M. ^[6] ; Fortunato, Elvira ^{[1, 3]} ; Mattoso, Luiz H. C. ^[6]

Affiliation

^[1] CEMOP UNINOVA, P-2829516 Caparica - Portugal

^[2] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn PPG CEM, BR-13565905 Sao Carlos, SP - Brazil

^[3] Univ NOVA Lisboa, Fac Sci & Technol, Dept Mat Sci, I3N CENIMAT, P-2829516 Caparica - Portugal

^[4] Univ Sao Paulo, Sao Carlos Inst Phys, BR-13560970 Sao Carlos, SP - Brazil

^[5] Univ Fed Lavras, Grad Program Biomat Engn PPGBiomat, BR-37200000 Lavras, MG - Brazil

^[6] Embrapa Instrumentat, Natl Nanotechnol Lab Agribusiness LNNA, BR-13560970 Sao Carlos, SP - Brazil

• Document type: Journal article
• Source: ACS APPLIED MATERIALS & INTERFACES; v. 13, n. 22, p. 26237-26246, JUN 9 2021.
• Web of Science Citations: 1

Abstract

Renewable cellulose substrates with submicron- and nanoscale structures have revived interest in paper electronics. However, the processes behind their production are still complex and time- and energy-consuming. Besides, the weak electrolytic properties of cellulose with submicron- and nanoscale structures have hindered its application in transistors and integrated circuits with low-voltage operation. Here, we report a simple, low-cost approach to produce flexible ionic conductive cellulose mats using solution blow spinning, which are used both as dielectric interstrate and substrate in low-voltage devices. The electrochemical properties of the cellulose mats are tuned through infiltration with alkali hydroxides (LiOH, NaOH, or KOH), enabling their application as dielectric and substrate in flexible, low-voltage, oxide-based field-effect transistors and pencil-drawn resistor-loaded inverters. The transistors exhibit good transistor performances under operation voltage below 2.5 V, and their electrical performance is strictly related to the type of alkali ionic specie incorporated. Devices fabricated on K'-infiltrated cellulose mats present the best characteristics, indicating pure capacitive charging of the semiconductor. The pencil-drawn load resistor inverter presents good dynamic performance. These findings may pave the way for a new generation of low-power, wearable electronics, enabling concepts such as the ``Internet of Things{''}. (AU)

• FAPESP's process: 17/18725-2 - Hybrid core-shell and Janus nanofibers obtained by solution blow spinning
• Grantee: Rafaella Takehara Paschoalin
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/22214-6 - Towards a convergence of technologies: from sensing and biosensing to information visualization and machine learning for data analysis in clinical diagnosis
• Grantee: Osvaldo Novais de Oliveira Junior
• Support Opportunities: Research Projects - Thematic Grants