All Polymer Solar Cells: Challenges and Opportunities

Jiajun Jin

doi:10.54254/2755-2721/2026.KA30037

Applied and Computational EngineeringOpen access

All Polymer Solar Cells: Challenges and Opportunities

Research Article

Open Access

All Polymer Solar Cells: Challenges and Opportunities

Jiajun Jin ^1*

¹ Shanghai University of Engineering Science

^*Corresponding author: jiajun52870@gmail.com

Published on 26 November 2025

ACE Vol.209

ISSN (Print): 2755-273X

ISSN (Online): 2755-2721

ISBN (Print): 978-1-80590-561-5

ISBN (Online): 978-1-80590-562-2

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Abstract

All-polymer solar cells (all-PSCs) have emerged as a promising branch of organic photovoltaics, characterized by the use of both polymer donors and polymer acceptors in the active layer. This structure offers distinct advantages over conventional organic solar cells that incorporate small-molecule acceptors. Despite their potential, all-PSCs still face challenges in achieving high power conversion efficiency (PCE) and long-term stability compared to silicon-based solar cells. This review systematically examines the fundamental principles, material innovations, and morphological control strategies that are central to enhancing the performance of all-PSCs. It also addresses key technical barriers such as limited charge mobility, energy loss, and environmental stability, which currently hinder their commercialization. Recent developments in novel polymer acceptors, particularly Y6-derivatives and double-cable polymers, have led to significant improvements in PCE, with some devices reaching over 17%. Furthermore, the inherent flexibility and roll-to-roll processability of all-PSCs provide notable cost and adaptability benefits, making them suitable for applications in versatile and portable electronics. This study also evaluates the environmental impact of all-PSCs through life cycle assessment, highlighting their low energy payback time and potential for eco-friendly manufacturing, while acknowledging concerns regarding material sourcing and end-of-life management. In conclusion, although all-PSCs still lag behind silicon-based cells in efficiency, ongoing advances in material design and processing techniques are steadily narrowing this gap. With their unique combination of mechanical resilience, cost-effectiveness, and scalability, all-PSCs are positioned to become a viable and sustainable contributor to the future renewable energy landscape.

Keywords:

All Polymer Solar Cells, organic photovoltaics, morphological control strategies

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