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A Universal In Situ Cross‐Linking Strategy Enables Orthogonal Processing of Full‐Color Organic Microlaser Arrays
Author(s) -
Fan Yuqing,
Zhang Chunhuan,
Du Yuxiang,
Qiao Chan,
Wang Kang,
Hou Yue,
Yao Jiannian,
Zhao Yong Sheng
Publication year - 2021
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202103031
Subject(s) - materials science , rgb color model , optoelectronics , laser , full color , optics , computer science , artificial intelligence , physics
Large‐scale red, green, and blue (RGB) microlaser arrays capable of exhibiting full‐color laser emissions are urgently desired for high‐performance flat‐panel laser displays. With excellent solution processability and optoelectronic properties, organic materials are promising candidates for full‐color microlasers; however, the heterogeneous integration of full‐color microlasers remains a challenge due to their poor solution stability to withstand multistage solution processing. Here, a robust in situ cross‐linking strategy is proposed to enable orthogonal processing of organic microlasers to heterogeneously integrate large‐scale full‐color organic microlaser arrays. The organic microlasers with controlled physical dimensions and spatial locations are fabricated with an electron beam (e‐beam) induced in situ polymerization reaction. Profiting from enhanced orthogonality of microlasers, large‐scale pixelated RGB microlaser arrays are monolithically integrated through successive e‐beam patterning processes. Laser emissions in the RGB microlaser pixels cover a color gamut 41% larger than the standard RGB space, with which flexible full‐color organic laser display patterns with a resolution of 254 dpi on a centimeter scale is obtained. The scalable heterogeneous integration platform reported in this work will pave a new avenue for the efficient construction of large‐scale high‐performance organic integrated optoelectronic devices.