A Universal In Situ Cross‐Linking Strategy Enables Orthogonal Processing of Full‐Color Organic Microlaser Arrays

Abstract

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.

Differential Polymer Chain Scission Enables Free‐Standing Microcavity Laser Arrays

“…In particular, the suspended optical microcavities fabricated on polymer substrates might find many important applications in flexible optical interconnects, flexible laser display, and security tags. [29,[48][49][50] Since any material component places specific requirements upon its application scenario, the EOB technique with simplified material component exhibits wider application scope than the existing technology (Figure S21, Supporting Information).…”

Self‐Erase Force‐Induced Turn‐On Organic ASE Output Cryptographic Primitive for Advanced Multiple Information Encryption

“…[ 38 ] Superlinear relationship is found above threshold with p = 5.86, clearly showing an ASE process. [ 39–41 ] Above the lasing thresholds, the fwhm of the pressed G ‐form microcrystals dramatically narrowed down to 7 nm. The sharp contrast is extremely important for multiple information encryptions.…”

Organic composite materials: Understanding and manipulating excited states toward higher light‐emitting performance

“…In the doped structures, dopants can be either uniformly or nonuniformly distributed, leading to uniform and nonuniform luminescence, respectively. [65][66][67] In the epitaxial structures, both molecular components and component luminescence are separated spatially. [49][50][51][52] In the epitaxial structures, two material components interact only at the interfaces, which are more suitable for constructing photonic devices, such as tunable waveguides, optical routers, modulators, and sensors.…”