High-performance Layer-by-Layer Processed Polymer Solar Cell <italic style="font-style: italic">via</italic> Solid Additive of Thermally-activated Delay Fluorescence

Meng-Ting Wang; Yi-Ming Wang; Fu-Gui Cai; Yi-Mei Zhang; Hong-Zheng Chen; Li-Jian Zuo

doi:10.1007/s10118-026-3653-2

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High-performance Layer-by-Layer Processed Polymer Solar Cell via Solid Additive of Thermally-activated Delay Fluorescence

RAPID COMMUNICATION | Updated：2026-07-27

- High-performance Layer-by-Layer Processed Polymer Solar Cell via Solid Additive of Thermally-activated Delay Fluorescence
- High-performance Layer-by-Layer Processed Polymer Solar Cell via Solid Additive of Thermally-activated Delay Fluorescence
- Chinese Journal of Polymer Science 2026年44卷第8期页码：2403-2411
- Affiliations：
  
  a.State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
  b.Zhejiang University-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 310014, China
- Author bio：
  
  zjuzlj@zju.edu.cn
- Funds：
  
  This work was financially supported by the National Key Research and Development Program of China (No. 2022YFB4200600), the National Natural Science Foundation of China (Nos. 52461160300, 52321165650 and 52127806), Zhejiang Provincial Natural Science Foundation of China (Nos. LR25E030003 and LD25E030001), Xiaoshan County Key Research and Development Plan (No. 2024104), “Pioneering” R&D Program of Zhejiang (No. 2025C01141) and the Fundamental Research Funds for the Central Universities (No. 226-2022-00209). L.Z. thanks the research start-up fund from Zhejiang University.;The authors declare no interest conflict.The data that support the findings of this study are available from the corresponding author upon reasonable request.
- DOI：10.1007/s10118-026-3653-2
  中图分类号：
- 收稿：2026-01-18，
  
  修回：2026-02-13，
  
  录用：2026-03-10，
  
  网络首发：2026-07-09，
  
  纸质出版：2026-08-15
- Accepted：
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Wang, M. T.; Wang, Y. M.; Cai, F. G.; Zhang, Y. M.; Chen, H. Z.; Zuo, L. J. High-performance layer-by-layer processed polymer solar cell via solid additive of thermally-activated delay fluorescence. Chinese J. Polym. Sci. 2026, 44, 2403–2411

Meng-Ting Wang, Yi-Ming Wang, Fu-Gui Cai, et al. High-performance Layer-by-Layer Processed Polymer Solar Cell via Solid Additive of Thermally-activated Delay Fluorescence[J]. Chinese Journal of Polymer Science, 2026, 44(8): 2403-2411. DOI: 10.1007/s10118-026-3653-2.
Wang, M. T.; Wang, Y. M.; Cai, F. G.; Zhang, Y. M.; Chen, H. Z.; Zuo, L. J. High-performance layer-by-layer processed polymer solar cell via solid additive of thermally-activated delay fluorescence. Chinese J. Polym. Sci. 2026, 44, 2403–2411 DOI： 10.1007/s10118-026-3653-2.

Meng-Ting Wang, Yi-Ming Wang, Fu-Gui Cai, et al. High-performance Layer-by-Layer Processed Polymer Solar Cell via Solid Additive of Thermally-activated Delay Fluorescence[J]. Chinese Journal of Polymer Science, 2026, 44(8): 2403-2411. DOI: 10.1007/s10118-026-3653-2. DOI：

摘要

Incorporating a thermally activated delayed fluorescence (TADF) additive into layer-by-layer fabrication synergistically optimizes the active layer morphology and suppresses non-radiative losses in polymer solar cells

enabling enhanced charge transport and exciton dynamics

as well as a power conversion efficiency of over 20%.

Abstract

Simultaneously optimizing the optoelectronic properties and the morphology of active layer is the key to high-performance polymer solar cells. Here

we present a novel materials-processing paradigm that incorporates a thermally activated delayed fluorescence (TADF) additive into the layer-by-layer (LBL) fabrication process to concurrently optimize nanoscale morphology and mitigate non-radiative recombination. We demonstrate that the TADF additive facilitates the formation of an ideal interpenetrating network during LBL film deposition

while its intrinsic TADF properties effectively reduce non-radiative voltage loss

enhance exciton lifetimes

and facilitate charge generation and transport. Devices fabricated with this synergistic strategy achieve both high short-circuit current density and open-circuit voltage

culminating in a remarkable power conversion efficiency exceeding 20%. This work not only provides an efficient and reproducible processing route for high-performance polymer solar cells (PSCs) but also opens a new avenue for addressing fundamental optoelectronic limitations through coordinated material design and processing innovation.

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High-performance Layer-by-Layer Processed Polymer Solar Cell via Solid Additive of Thermally-activated Delay Fluorescence

High-performance Layer-by-Layer Processed Polymer Solar Cell via Solid Additive of Thermally-activated Delay Fluorescence

DOI：10.1007/s10118-026-3653-2

摘要

Abstract

关键词

Keywords

references