Wide-Humidity Range Applicable, Anti-Freezing, and Healable Zwitterionic Hydrogels for Ion-Leakage-Free Iontronic Sensors

Zhao，Yiqian1; Yang，Na1; Chu，Xu2; Sun，Fuchang1; Ali，Muhammad Umair1; Zhang，Yuan3; Yang，Biao1; Cai，Yulu1; Liu，Manyu1; Gasparini，Nicola4; Zheng，Jiaxin1; Zhang，Chaohong1; Guo，Chuanfei3; Meng，Hong1

2023

10.1002/adma.202211617

Advanced Materials   Impact Factor & Quartile

0935-9648

1521-4095

Hydrogels have entered the spotlight for applications in soft electronics. It is essential and challenging to obtain hydrogels that can function properly under varying environmental circumstances, that is, 30–90% relative humidity (RH) and −20 to 40 °C due to their intrinsic nature to lose and absorb water upon variations in humidity and temperature. In this work, a green solvent, solketal, is introduced into poly 3-dimethyl-2-(2-methylprop-2-enoyloxy)ethyl azaniumyl propane-1-sulfonate (poly(DMAPS)) zwitterionic hydrogels. Compared to glycerol, solketal endows hydrogels with greater possibility for further modification as well as improved water content and mechanical performance consistency over 30–90% RH. Encouragingly, the optimized hydrogel demonstrates its unique merits as a dielectric layer in iontronic sensors, featuring non-leaky ions, high sensitivity (1100 kPa), wide humidity, and temperature range applicability. A wide-humidity range healable and stretchable electrode is attained by combining the hydrogel substrate with Ag paste. A full-device healable and highly-sensitive sensor is developed. This study is a pioneering work that tackles the broad humidity range applicability issue of hydrogels, and demonstrates the ion-leakage-free ionic skins with zwitterionic dielectrics. The outcomes of the study will considerably promote advancements in the fields of hydrogel electronics and iontronic sensors.

e-skin ion-leakage-free self-healing solketal wide-humidity range applicable zwitterionic hydrogel

SCI

English

NI Journal Papers ; NI论文

Others

National Natural Science Foundation of China[52103249] ; Shenzhen Science and Technology Program[GJHZ20200731095400001] ; Guangdong Basic and Applied Basic Research Foundation[2020B1515120029]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000963421600001

WILEY-V C H VERLAG GMBH

MATERIALS SCIENCE

2-s2.0-85151641904

Scopus

1.School of Advanced Materials,Peking University Shenzhen Graduate School,Peking University,Shenzhen,518055,China
2.State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan,430072,China
3.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.Department of Chemistry and Centre for Processable Electronics,Imperial College London,London,W12 0BZ,United Kingdom

Zhao，Yiqian,Yang，Na,Chu，Xu,et al. Wide-Humidity Range Applicable, Anti-Freezing, and Healable Zwitterionic Hydrogels for Ion-Leakage-Free Iontronic Sensors[J]. Advanced Materials,2023,35(22).

Zhao，Yiqian.,Yang，Na.,Chu，Xu.,Sun，Fuchang.,Ali，Muhammad Umair.,...&Meng，Hong.(2023).Wide-Humidity Range Applicable, Anti-Freezing, and Healable Zwitterionic Hydrogels for Ion-Leakage-Free Iontronic Sensors.Advanced Materials,35(22).

Zhao，Yiqian,et al."Wide-Humidity Range Applicable, Anti-Freezing, and Healable Zwitterionic Hydrogels for Ion-Leakage-Free Iontronic Sensors".Advanced Materials 35.22(2023).