Interface preassembly oriented growth strategy towards flexible crystalline covalent organic framework films for OLEDs

Abstract The synthesis of flexible crystalline films for optoelectronic applications remains a significant chemical challenge due to the inherent contradiction between flexibility and crystallinity. The delicate balance between flexibility and crystallinity has long constituted a barrier to the deve...

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Main Authors: Xiang-Chun Li, Hao Sun, Zuqiang Wang, Weijie Yang, Qiaoyu Wang, Chuanrui Wu, Jiajun Chen, Qinchen Jiang, Ling-Jun He, Qian Xue, Wei Huang, Wen-Yong Lai
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-025-58534-7
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author Xiang-Chun Li
Hao Sun
Zuqiang Wang
Weijie Yang
Qiaoyu Wang
Chuanrui Wu
Jiajun Chen
Qinchen Jiang
Ling-Jun He
Qian Xue
Wei Huang
Wen-Yong Lai
author_facet Xiang-Chun Li
Hao Sun
Zuqiang Wang
Weijie Yang
Qiaoyu Wang
Chuanrui Wu
Jiajun Chen
Qinchen Jiang
Ling-Jun He
Qian Xue
Wei Huang
Wen-Yong Lai
author_sort Xiang-Chun Li
collection DOAJ
description Abstract The synthesis of flexible crystalline films for optoelectronic applications remains a significant chemical challenge due to the inherent contradiction between flexibility and crystallinity. The delicate balance between flexibility and crystallinity has long constituted a barrier to the development of high-performance optoelectronic materials. Herein, an interface preassembly oriented growth (IPOG) strategy has been explored to fabricate flexible crystalline covalent organic framework (COF) films with controllable thickness. By synergistically modulating hydrophilic and hydrophobic interactions along with interfacial confinement, a set of uniform and flexible crystalline COF films were successfully synthesized. This achievement unlocks the potential of COFs for device applications in organic light-emitting diodes, leading to unprecedented high-efficiency electroluminescence from COFs. This groundbreaking advancement not only lays the foundation for the progress of COF-based OLEDs but also signifies the advent of an era in the synthesis of flexible crystalline materials, wherein exceptional mechanical properties are seamlessly integrated with superior electronic performance, thus heralding a transformative impact on the landscape of flexible electronics.
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issn 2041-1723
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publisher Nature Portfolio
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series Nature Communications
spelling doaj-art-b75a99fbfee1486686f663c23c3d1a412025-08-20T02:17:10ZengNature PortfolioNature Communications2041-17232025-04-011611810.1038/s41467-025-58534-7Interface preassembly oriented growth strategy towards flexible crystalline covalent organic framework films for OLEDsXiang-Chun Li0Hao Sun1Zuqiang Wang2Weijie Yang3Qiaoyu Wang4Chuanrui Wu5Jiajun Chen6Qinchen Jiang7Ling-Jun He8Qian Xue9Wei Huang10Wen-Yong Lai11State Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsState Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsState Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsState Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsState Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsState Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsState Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsState Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsState Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsState Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsState Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsState Key Laboratory of Flexible Electronics (LoFE), Institute of Advanced Materials (IAM), School of Chemistry and Life Sciences, Nanjing University of Posts & TelecommunicationsAbstract The synthesis of flexible crystalline films for optoelectronic applications remains a significant chemical challenge due to the inherent contradiction between flexibility and crystallinity. The delicate balance between flexibility and crystallinity has long constituted a barrier to the development of high-performance optoelectronic materials. Herein, an interface preassembly oriented growth (IPOG) strategy has been explored to fabricate flexible crystalline covalent organic framework (COF) films with controllable thickness. By synergistically modulating hydrophilic and hydrophobic interactions along with interfacial confinement, a set of uniform and flexible crystalline COF films were successfully synthesized. This achievement unlocks the potential of COFs for device applications in organic light-emitting diodes, leading to unprecedented high-efficiency electroluminescence from COFs. This groundbreaking advancement not only lays the foundation for the progress of COF-based OLEDs but also signifies the advent of an era in the synthesis of flexible crystalline materials, wherein exceptional mechanical properties are seamlessly integrated with superior electronic performance, thus heralding a transformative impact on the landscape of flexible electronics.https://doi.org/10.1038/s41467-025-58534-7
spellingShingle Xiang-Chun Li
Hao Sun
Zuqiang Wang
Weijie Yang
Qiaoyu Wang
Chuanrui Wu
Jiajun Chen
Qinchen Jiang
Ling-Jun He
Qian Xue
Wei Huang
Wen-Yong Lai
Interface preassembly oriented growth strategy towards flexible crystalline covalent organic framework films for OLEDs
Nature Communications
title Interface preassembly oriented growth strategy towards flexible crystalline covalent organic framework films for OLEDs
title_full Interface preassembly oriented growth strategy towards flexible crystalline covalent organic framework films for OLEDs
title_fullStr Interface preassembly oriented growth strategy towards flexible crystalline covalent organic framework films for OLEDs
title_full_unstemmed Interface preassembly oriented growth strategy towards flexible crystalline covalent organic framework films for OLEDs
title_short Interface preassembly oriented growth strategy towards flexible crystalline covalent organic framework films for OLEDs
title_sort interface preassembly oriented growth strategy towards flexible crystalline covalent organic framework films for oleds
url https://doi.org/10.1038/s41467-025-58534-7
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