A kind of pollution known as electromagnetic interference(EMI),which results from ubiquitous usage of various electronic communication and military radar equipment,has been receiving increasing attention recently.Howe...A kind of pollution known as electromagnetic interference(EMI),which results from ubiquitous usage of various electronic communication and military radar equipment,has been receiving increasing attention recently.However,large-area EMI shielding on transparent and/or curved surfaces,including building windows,curved glass wall,and special requirements spaces(SRSs),remains hard to achieve.In this paper,a silver nanofiber(AgNF)based flexible and transparent EMI shielding film was successfully assembled via a room-temperature roll-to-roll production method.For transparent application scenario,AgNF with 89%transmittance in visible range and 1μm thickness shows~20 dB shielding efficiency(EMI SE).On the other hand,total shielding(>50 dB)is obtained when the thickness of AgNF increases to 10μm,while its transmittance in visible range remains higher than 75%.Considering the facile and scale-free production technology,this material can be readily applied in large-scale,transparent,and/or SRSs EMI shielding.展开更多
Ultrathin,patterned,conducting metallic fibers have been extensively studied as building blocks in flexible electronics.However,their scalable processing and attainment of patterns at room temperature is challenging.I...Ultrathin,patterned,conducting metallic fibers have been extensively studied as building blocks in flexible electronics.However,their scalable processing and attainment of patterns at room temperature is challenging.In this paper,we report on the patterning of ultra-long silver submicron fibers as woven mesh through the process of continuous draw spinning in the presence of ultraviolet(UV)treatment.The silver fibers can be directly intertwined on flexible substrates,such as polyethylene terephthalate(PET)and polyimide(PI).The as obtained silver submicron fiber mesh present excellent photoelectric properties(T=90%,R=9Ωsq^(−1))and outstanding flexibility and can be easily transferred on other surfaces.To demonstrate its application,flexible electrochromic smart window and infrared stealth film have been prepared.展开更多
基金This study was supported by the National Basic Research of China(Grants 2015CB932500)National Natural Science Foundations of China(Grant 51661135025 and 51522207)+1 种基金BUPT Excellent Ph.D.Students Foundation(Grant GX2017205)State Key Laboratory of Information Photonics and Optical Communications(Beijing University of Posts and Telecommunications).
文摘A kind of pollution known as electromagnetic interference(EMI),which results from ubiquitous usage of various electronic communication and military radar equipment,has been receiving increasing attention recently.However,large-area EMI shielding on transparent and/or curved surfaces,including building windows,curved glass wall,and special requirements spaces(SRSs),remains hard to achieve.In this paper,a silver nanofiber(AgNF)based flexible and transparent EMI shielding film was successfully assembled via a room-temperature roll-to-roll production method.For transparent application scenario,AgNF with 89%transmittance in visible range and 1μm thickness shows~20 dB shielding efficiency(EMI SE).On the other hand,total shielding(>50 dB)is obtained when the thickness of AgNF increases to 10μm,while its transmittance in visible range remains higher than 75%.Considering the facile and scale-free production technology,this material can be readily applied in large-scale,transparent,and/or SRSs EMI shielding.
基金This study was supported by the National Basic Research of China(Grants 2015CB932500)National Natural Science Foundations of China(Grant 51661135025 and 51522207).
文摘Ultrathin,patterned,conducting metallic fibers have been extensively studied as building blocks in flexible electronics.However,their scalable processing and attainment of patterns at room temperature is challenging.In this paper,we report on the patterning of ultra-long silver submicron fibers as woven mesh through the process of continuous draw spinning in the presence of ultraviolet(UV)treatment.The silver fibers can be directly intertwined on flexible substrates,such as polyethylene terephthalate(PET)and polyimide(PI).The as obtained silver submicron fiber mesh present excellent photoelectric properties(T=90%,R=9Ωsq^(−1))and outstanding flexibility and can be easily transferred on other surfaces.To demonstrate its application,flexible electrochromic smart window and infrared stealth film have been prepared.
