Organic electrochemical transistors(OECTs)have emerged as versatile platforms for broad applications spanning from flexible and wearable integrated circuits to biomedical monitoring to neuromorphic computing.A variety of materials and tailored micro/nanostructures have recently been developed to realized stretchable OECTs,however,a solid-state OECT with high elasticity has not been demonstrated to date.Herein,we present a general platform developed for the facile generation of highly elastic all-polymer OECTs with high transconductance(up to 12.7 mS),long-term mechanical and environ-mental durability,and sustainability.Rapid prototyping of these devices was achieved simply by transfer printing lithium bis(trifluoromethane)sulfonimide doped poly(3,4-ethylenedioxy thiophene):poly(styrene sul-fonate)(PEDOT:PSS/LiTFSI)microstructures onto a resilient gelatin-based gel electrolyte,in which both depletion-mode and enhancement-mode OECTs were produced using various active channels.Remark-ably,the elaborate 3D architectures of the PEDOT:PSS were engineered,and an imprinted 3D-microstructured channel/electrolyte interface combined with wrinkled electrodes provided performance that was retained(＞70％)through biaxial stretching of 100％strain and after 1000 repeated cycles of 80％strain.Furthermore,the anti-drying and degradable gelatin and the self-crosslinked PEDOT:PSS/LiTFSI jointly enabled stability during＞4 months of storage and on-demand disposal and recycling.This work thus represents a straightforward approach towards high-performance stretchable organic electronics for wearable/implantable/neuromorphic/sustainable applications.

Wenjin Wang;Zhaoxian Li;Mancheng Li;Lvye Fang;Fubin Chen;Songjia Han;Liuyuan Lan;Junxin Chen;Qize Chen;Hongshang Wang;Chuan Liu;Yabin Yang;Wan Yue;Zhuang Xie

School of Materials Science and Engineering,Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices and Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education,Sun Yat-Sen University,Guangzhou 510275,People's Republic of China;State Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology,School of Electronics and Information Technology,Sun Yat-Sen University,Guangzhou 510275,People's Republic of China

纳微快报（英文）

[1]Wenjin Wang;Zhaoxian Li;Mancheng Li;Lvye Fang;Fubin Chen;Songjia Han;Liuyuan Lan;Junxin Chen;Qize Chen;Hongshang Wang;Chuan Liu;Yabin Yang;Wan Yue;Zhuang Xie-.High-Transconductance,Highly Elastic,Durable and Recyclable All-Polymer Electrochemical Transistors with 3D Micro-Engineered Interfaces)[J].纳微快报（英文）,2022(11):237-255

Transconductance,OECTs,trifluoromethane,sulfonimide,ethylenedioxy,fonate,Remark

Highly,Elastic,Durable,Recyclable,All,Polymer,Electrochemical,Transistors,Micro,Engineered,Interfaces,Organic,electrochemical,transistors,have,emerged,versatile,platforms,broad,applications,spanning,from,flexible,wearable,integrated,circuits,biomedical,monitoring,neuromorphic,computing,variety,materials,tailored,nanostructures,recently,been,developed,realized,stretchable,however,solid,state,elasticity,has,not,demonstrated,date,Herein,general,facile,generation,highly,all,polymer,transconductance,up,mS,long,term,mechanical,environ,mental,durability,sustainability,Rapid,prototyping,these,devices,was,achieved,simply,by,transfer,printing,lithium,bis,doped,thiophene,styrene,PEDOT,PSS,LiTFSI,microstructures,onto,resilient,gelatin,electrolyte,which,both,depletion,mode,enhancement,were,produced,using,various,active,channels,ably,elaborate,architectures,engineered,imprinted,microstructured,interface,combined,wrinkled,electrodes,provided,performance,that,retained,through,biaxial,stretching,strain,after,repeated,cycles,Furthermore,anti,drying,degradable,self,crosslinked,jointly,enabled,stability,during,months,storage,demand,disposal,recycling,This,work,thus,represents,straightforward,approach,towards,organic,electronics,implantable,sustainable

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