Vertically stacked all-organic active-matrix organic light-emitting diodes are promising candidates for high-quality skinlike displays due to their high aperture ratio,extreme mechanical flexibility,and low-temperatur...Vertically stacked all-organic active-matrix organic light-emitting diodes are promising candidates for high-quality skinlike displays due to their high aperture ratio,extreme mechanical flexibility,and low-temperature processing ability.However,these displays suffer from process interferences when interconnecting functional layers made of all-organic materials.To overcome this challenge,we present an innovative integration strategy called“discrete preparationmultilayer lamination”based on microelectronic processes.In this strategy,each functional layer was prepared separately on different substrates to avoid chemical and physical damage caused by process interferences.A single interconnect layer was introduced between each vertically stacked functional layer to ensure mechanical compatibility and interconnection.Compared to the previously reported layer-by-layer preparation method,the proposed method eliminates the need for tedious protection via barrier and pixel-defining layer processing steps.Additionally,based on active-matrix display,this strategy allows multiple pixels to collectively display a pattern of“1”with an aperture ratio of 83%.Moreover,the average mobility of full-photolithographic organic thin-film transistors was 1.04 cm2 V−1 s−1,ensuring stable and uniform displays.This strategy forms the basis for the construction of vertically stacked activematrix displays,which should facilitate the commercial development of skin-like displays in wearable electronics.展开更多
基金supported by the National Natural Science Foundation of China(grant Nos.NSFC62004182,62305128)the Sichuan Science and Technology Program(grant no.2022JDRC0021)+3 种基金the Career Development Grant of Institute of Chemical Materials(STB-2021-10)the International Cooperation and Exchange Project of Jilin Province(20210402079GH,20230402056GH)the 19th batch of innovative and entrepreneurial talent projects in Jilin Province(2023QN01)the Project of Science and Technology Development Plan of Jilin Province(Grant No.20220508037RC).
文摘Vertically stacked all-organic active-matrix organic light-emitting diodes are promising candidates for high-quality skinlike displays due to their high aperture ratio,extreme mechanical flexibility,and low-temperature processing ability.However,these displays suffer from process interferences when interconnecting functional layers made of all-organic materials.To overcome this challenge,we present an innovative integration strategy called“discrete preparationmultilayer lamination”based on microelectronic processes.In this strategy,each functional layer was prepared separately on different substrates to avoid chemical and physical damage caused by process interferences.A single interconnect layer was introduced between each vertically stacked functional layer to ensure mechanical compatibility and interconnection.Compared to the previously reported layer-by-layer preparation method,the proposed method eliminates the need for tedious protection via barrier and pixel-defining layer processing steps.Additionally,based on active-matrix display,this strategy allows multiple pixels to collectively display a pattern of“1”with an aperture ratio of 83%.Moreover,the average mobility of full-photolithographic organic thin-film transistors was 1.04 cm2 V−1 s−1,ensuring stable and uniform displays.This strategy forms the basis for the construction of vertically stacked activematrix displays,which should facilitate the commercial development of skin-like displays in wearable electronics.
