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| Wang Ruixin1 Zhong Qing2, 3 Xiong Tao3 Lu Siyuan1 Zhou Min1 Li Xinping1 Zhang Zhao1, * |
| 投稿时间:2026-06-08 修订日期:2026-07-27 |
| DOI: |
| Key Words:Haze Regulation of High-Beating-Degree Pulp/TEMPO-Oxidized Cellulose Nanofiber Composite Transparent Paper and Preliminary Validation as an OLED Substrate |
| Fund Project:国家自然科学基金项目(22171170;21703131) |
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| 摘要点击次数: 34 |
| 全文下载次数: 0 |
| Abstract:To explore a paper-based flexible optoelectronic substrate combining light diffusion, surface smoothness, and water-vapor barrier performance, composite transparent paper was prepared from 90°SR high-beating-degree pulp and TEMPO-oxidized cellulose nanofibers (tCNF), followed by single- or double-sided epoxy-resin dip coating. The uncoated samples containing 90°SR pulp exhibited a haze of approximately 94.3%. The single-sided coated sample with a tCNF-to-pulp mass ratio of 1:1 showed a haze of 81.2% and a water-vapor transmission rate of 60.0 g·m?²·d?¹. The double-sided coated samples maintained a transmittance of 86.2%–89.3% and a maximum haze of 58.1%. The double-sided coated 1:1 sample exhibited a root-mean-square roughness of 2.5 nm and a water-vapor transmission rate below the instrumental detection limit (<0.5 g·m?²·d?¹). A representative OLED fabricated on this substrate could be operated and reached a maximum luminance of 15.3 cd·m?² at 18.0 V. The morphological and optical results suggest that microscale fibers, fiber bundles, and air/cellulose interfaces act as important scattering structures, whereas double-sided coating improves surface smoothness and barrier performance by sealing connected pores. This study provides a preliminary proof of concept for constructing a paper-based light-diffusing OLED substrate, while the independent effect of coating amount and device reproducibility require further evaluation. |
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