Tuning Compatibility and Optoelectronic Properties of Polyfluorene/Polydimethylsiloxane Composite Semiconductor Films

Qi-xin Du; Xiao-qi Guo; Tian-ci Wang; Jian Tao; Ya-min Han; Lu-bing Bai; Jin-yi Lin

doi:10.11777/j.issn1000-3304.2026.26039

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Tuning Compatibility and Optoelectronic Properties of Polyfluorene/Polydimethylsiloxane Composite Semiconductor Films

Research Article | 更新时间：2026-06-02

- Tuning Compatibility and Optoelectronic Properties of Polyfluorene/Polydimethylsiloxane Composite Semiconductor Films
- Acta Polymerica Sinica Vol. 57, Issue 6, Pages: 1421-1432(2026)
- 作者机构：
  
  南京工业大学柔性电子（未来技术）学院柔性电子全国重点实验室南京 211816
- 作者简介：
  
  Ya-min Han, E-mail: iamymhan@njtech.edu.cn
  Lu-bing Bai, E-mail: iamlbbai@njtech.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2026.26039
  CLC：
- CSTR：32057.14.GFZXB.2026.7587
- Received：05 February 2026，
  
  Accepted：19 March 2026，
  
  Online First：18 May 2026，
  
  Published：20 June 2026
- 稿件说明：
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杜齐心, 郭晓琪, 王天赐, 陶健, 韩亚敏, 白鲁冰, 林进义. 聚芴/聚二甲基硅氧烷复合半导体薄膜的相容性调控与光电性能. 高分子学报, 2026, 57(6), 1421-1432.

Du, Q. X.; Guo, X. Q.; Wang, T. C.; Tao, J.; Han, Y. M.; Bai, L. B.; Lin, J. Y. Tuning compatibility and optoelectronic properties of polyfluorene/polydimethylsiloxane composite semiconductor films. Acta Polymerica Sinica (in Chinese), 2026, 57(6), 1421-1432.
杜齐心, 郭晓琪, 王天赐, 陶健, 韩亚敏, 白鲁冰, 林进义. 聚芴/聚二甲基硅氧烷复合半导体薄膜的相容性调控与光电性能. 高分子学报, 2026, 57(6), 1421-1432. DOI： 10.11777/j.issn1000-3304.2026.26039. CSTR： 32057.14.GFZXB.2026.7587.

Du, Q. X.; Guo, X. Q.; Wang, T. C.; Tao, J.; Han, Y. M.; Bai, L. B.; Lin, J. Y. Tuning compatibility and optoelectronic properties of polyfluorene/polydimethylsiloxane composite semiconductor films. Acta Polymerica Sinica (in Chinese), 2026, 57(6), 1421-1432. DOI： 10.11777/j.issn1000-3304.2026.26039. CSTR： 32057.14.GFZXB.2026.7587.

摘要

针对柔性显示器件对可拉伸性与环保型溶液加工的需求，本研究设计并合成了一种含杂化硅氧烷侧链的聚芴高分子，并将其与聚二甲基硅氧烷(PDMS)弹性体共混构筑复合半导体薄膜. 研究发现，硅氧烷侧链能有效调控复合薄膜的相容性，显著抑制相分离，在70%的弹性体比例下薄膜仍保持均匀形貌. 此外，该聚合物薄膜呈现优异的深蓝光发射，荧光量子产率(PLQY)可达50.7%，并在多种绿色溶剂中具有良好的溶解性，且光电性能与使用传统甲苯溶剂时相当，为实现可拉伸显示器件的环保加工提供了可能. 基于纯聚合物薄膜和复合薄膜制备的聚合物发光二极管(PLED)均展现出较好的深蓝电致发光性能，且复合薄膜器件在PDMS比例增加时表现出相对缓慢的性能衰减. 本研究为开发兼具可拉伸性、绿色加工性与高性能的柔性光电材料提供了可行的分子设计策略.

Abstract

In response to the need for stretchability and environmentally friendly processing in flexible displays

we designed and synthesized a polyfluorene derivative

PDBF

SiO

by incorporating hybrid siloxane side chains. Composite semiconductor films were constructed by blending the polymer with polydimethylsiloxane (PDMS) elastomers

and we found that the siloxane side chains effectively regulate the compatibility of the composite films

significantly suppressing phase separation and maintaining uniform morphology even at a PDMS content of 70%. This polymer exhibited blue emission with a thin-film photoluminescence quantum yield (PLQY) of 50.7%

along with good solubility in various green solvents while maintaining op

tical properties comparable to those in conventional toluene. This enabled the potential for eco‑friendly fabrication of stretchable displays. Polymer light‑emitting diodes (PLED) fabricated from both pristine and composite films showed promising deep‑blue electroluminescence. This study provides a viable molecular design strategy for developing flexible optoelectronic materials that combine stretchability

green processability

and high performance.

关键词

Keywords

references

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