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Advances in Emerging Photovoltaic: From Materials and Devices to Modules

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: 30 September 2026 | Viewed by 862

Special Issue Editor


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Guest Editor
1. Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
2. Department of Physics, The Chinese University of Hong Kong, Hong Kong, China
Interests: design and synthesis of organic functional materials; organic solar cell materials and devices; perovskite solar cell materials and devices

Special Issue Information

Dear Colleagues,

This Special Issue aims to capture the latest groundbreaking research and comprehensive reviews in the rapidly evolving field of next-generation photovoltaics. While silicon-based technology continues to dominate the market, emerging photovoltaic technologies such as perovskite solar cells, organic photovoltaics, and quantum dot solar cells have demonstrated unprecedented progress in power conversion efficiencies, offering unique advantages like tunable bandgaps, flexibility, lightweight, and potential for low-cost production.

The scope of this Issue is intentionally broad to reflect the interdisciplinary nature of the field. We invite contributions that explore novel material design and synthesis, including but not limited to new perovskite compositions, non-fullerene acceptors for organic cells, and advanced quantum dot structures.

Furthermore, recognizing the critical pathway from laboratory-scale achievement to real-world application, this Issue particularly welcomes studies addressing the key challenges of scalability, long-term operational stability, and lifetime assessment. Topics of interest also include module fabrication and encapsulation techniques.

By bringing together contributions from leading scientists in materials science and chemistry, this Special Issue seeks to provide a valuable platform for sharing knowledge, stimulating discussion, and accelerating the development of efficient, stable, and commercially viable photovoltaic technologies for a sustainable energy future.

Dr. Guilong Cai
Guest Editor

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • design and synthesis of photovoltaic materials
  • perovskite photovoltaics
  • organic photovoltaics
  • quantum dot solar cells
  • scalability and stability

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Published Papers (1 paper)

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Research

12 pages, 2246 KB  
Article
Constructing High-Performance Solar Cells by Incorporating an A1-A2-Type Polymer Donor as a Guest Material
by Min Li, Guo Chen, Ai Lan, Sein Chung, Mingming Que, Yongjoon Cho and Bin Huang
Molecules 2025, 30(24), 4755; https://doi.org/10.3390/molecules30244755 - 12 Dec 2025
Cited by 2 | Viewed by 661
Abstract
Owing to the intramolecular push-pull electron effect between the electron donor (D) unit and electron acceptor (A) unit, the D-A type based polymer donors display outstanding device performance. However, the imperfect energy levels lead to the D-A-type-based polymer device exhibiting high voltage loss. [...] Read more.
Owing to the intramolecular push-pull electron effect between the electron donor (D) unit and electron acceptor (A) unit, the D-A type based polymer donors display outstanding device performance. However, the imperfect energy levels lead to the D-A-type-based polymer device exhibiting high voltage loss. In this study, an A1-A2-type copolymer M1 was developed with 1,3-bis(2-ethylhexyl)-5,7-di(thiophen-2-yl)benzo[1,2-c:4,5-c’]dithiophene-4,8-dione (BDD) as the A1 unit and dithieno[3′,2′:3,4;2″,3″:5,6]benzo[1,2-c][1,2,5]thiadiazole (DTBT) as the A2 unit. Compared with D-A-type-based polymer donor PM6, the A1-A2 type based M1 possesses lower energy levels, broader absorption, and stronger crystallinity. After introducing M1 to the PM6:L8-BO-based system as the guest material, the ternary blend films exhibited exceptional face-on molecular orientation and favorable active-layer morphology, which promotes exciton dissociation and suppresses charge recombination. Consequently, the PM6:M1(5%):L8-BO-based ternary device exhibited an impressive power conversion efficiency (PCE) of 19.70% with simultaneously enhanced photostability, which is superior to the PM6:L8-BO-based binary system. Our work offers an efficient approach to developing high-performance ternary devices by introducing a novel A1-A2 type polymer donors as the guest material. Full article
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