Organosilica Nanodots Doped ZnO Cathode Interface Layer for Highly Efficient and Stable Inverted Polymer Solar Cells DOI

Luchan Huang,

Zhuangzhuang Chen,

Wenwen Chen

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 29, 2024

Interfacial engineering is essential to achieve optical efficiencies and facilitate the industrialization of organic solar cells (OSCs). By doping organosilica nanodots (OSiNDs) into zinc oxide (ZnO), we have developed a hybrid ZnO/OSiNDs (4 wt %) cathode interface layer (CIL) that significantly enhances overall performance inverted (i-OSCs). In PM6/BTP-eC9 active system, i-OSC devices with CIL exhibit superior power conversion efficiency (PCE) 17.49%, surpassing reference pure ZnO (15.88%). The OSiNDs not only modulate work function ZnO, thereby facilitating carrier transport between layer, but also enhance device stability. After exposure 1200 min 100 mW/cm

Language: Английский

Suppressed Degradation Process of PBDB-TF-T1:BTP-4F-12-Based Organic Solar Cells with Solid Additive Atums Green DOI Creative Commons
Zerui Li,

Sergei I. Vagin,

Jinsheng Zhang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 30, 2025

Solid additives have garnered significant attention due to their numerous advantages over liquid additives. This study explores the potential of green-fluorescent conjugated polymer denoted Atums Green as a solid additive in green-solvent-based PBDB-TF-T1:BTP-4F-12 solar cells. Even tiny amounts doping significantly improve device performance. For reference cell without any additive, we find that degradation is not caused by chemical redox reactions but changes crystallinity and microstructure evolution during aging air under illumination. Operando GIWAXS GISAXS are used investigate structure evolution. We discover four-stage process for cell. In general, lattice spacing crystallite coherence length decrease, while domain sizes increase, which causes loss shirt-circuit current JSC fill factor FF. Furthermore, decomposition component detected GISAXS, corresponding open-circuit voltage VOC. effectively suppresses well continuous decomposition, thereby enhancing stability illumination air. finding reveals kinetic organic cells, establishes correlation between morphological properties performance, further demonstrates promising

Language: Английский

Citations

0
1,4-Dimethoxynaphthalene as a Solid Additive for Improved Photovoltaic Performance in Organic Solar Cells DOI
Yuanyuan Liu, Shiqi Ye, Huiqiu Deng

et al.

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

Morphology optimization of blend films is an essential strategy to enhance the photovoltaic performance organic solar cells (OSCs). Additive engineering effective for fine-tuning active layer morphology. Given limited efforts and achievements in designing synthesizing liquid additives, new solid additives manipulate morphology layers have gained widespread attention. Herein, 1,4-dimethoxynaphthalene (DMNA), with merits simple structure, low cost, ecofriendliness, successfully incorporated as a novel additive optimize OSCs based on D18-Cl:N3. The relationship between different DMNA contents device has been investigated. It found that can be effectively regulated by DMNA, leading enhanced molecular packing films, which favors exciton dissociation, charge transfer, suppression recombination. As result, 18.61% power conversion efficiency (PCE) obtained D18-Cl:N3 binary devices better than 17.21% PCE control device. This primarily due simultaneous increase short-circuit current density fill factor. Furthermore, general applicability confirmed other systems. These results suggest presents potential prospects regulating bulk heterojunction toward high-performance high-stability OSCs.

Language: Английский

Citations

0
Coordination Cathode Interlayer Enhancing the Stability of Air-Processed Organic Photovoltaics DOI
Qinan Wang, Qianqing Jiang, Dianyi Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Moisture in the air can harm photovoltaic performance of organic (OPV) devices due to serious charge recombination induced by moisture. The interface between electron transport layer (ETL) and top electrode is easily invaded moisture since it outermost interlayer device. Here, we report an effective strategy enhance resistance device modifying ETL ZnO nanoparticles (ZnO NPs) with a coordination interlayer. This dramatically strengthens adhesion NPs Ag electrode, thereby reducing invasion at enhancing device's stability air. After introducing interlayer, power conversion efficiency (PCE) unencapsulated increased substantially from 0.1% 16.3% when measured under open-air conditions. Notably, retained 85% 56% initial PCE after 14 days 1 year storage air, respectively.

Language: Английский

Citations

0
Temperature-Dependent Thermal Behavior of BTP-4F-12-based Organic Solar Cells DOI Creative Commons
Zerui Li, Jinsheng Zhang, S.A. Wegener

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111043 - 111043

Published: April 1, 2025

Language: Английский

Citations

0
Unexpected MoO3/Al Interfacial Reaction Lowering the Performance of Organic Solar Cells upon Thermal Annealing and Methods for Suppression DOI

Xuelai Yu,

Xi Qian, Jian Qin

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Understanding the degradation mechanism and improving thermal stability of organic solar cells are essential for this new photovoltaic technology. In work, we found that high-performance polymer suffer from significant performance decay upon annealing at 150 °C owing to fast VOC FF. We demonstrated process leads a severe chemical reaction MoO3 with Al, forming an Al2O3 barrier layer MoO3/Al interface, which lowers built-in potential (Vbi) consequently reduces charge collection efficiency. Inserting thin C60 interlayer between slows ensures high Vbi efficiency annealed MoO3/C60/Al cells. Such protection effect in device against was also confirmed different photoactive layers metal electrodes, demonstrating generality interfacial layer. Finally, inverted C60-modified anode showed almost no high-temperature hot-press encapsulation, excellent heat tolerance structure.

Language: Английский

Citations

0
Fluorination Strategy for Benzimidazole Core Based Electron Acceptors Achieving over 19% Efficiency for Ternary Organic Solar Cells DOI

Yukun Xia,

Chao Wang, Er‐Jia Guo

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 6, 2024

The expansion of two-dimensional conjugated systems in nonfullerene electron acceptors (NFAs) has significantly advanced the molecular design and efficiency potential organic solar cells (OSCs). This study introduces a novel class NFAs featuring benzimidazole core with varying degrees peripheral fluorination, designated as YIS-4F, YIS-6F, YIS-8F, respectively. Through systematic modulation fluorine content, we observed that OSCs incorporating YIS-6F achieved highest power conversion (PCE) 17.28%, surpassing those YIS-4F YIS-8F. Notably, incorporation ternary blend D18/N3 yielded remarkable PCE 19.43%. enhanced performance YIS-6F-based devices is attributed to optimized energy level alignment crystallinity, which collectively facilitate efficient exciton dissociation, accelerated charge transport, minimized recombination, culminating an exceptional fill factor PCE. Our findings underscore pivotal role fluorination at central optimizing packing, consequently enhancing OSCs.

Language: Английский

Citations

1
Organosilica Nanodots Doped ZnO Cathode Interface Layer for Highly Efficient and Stable Inverted Polymer Solar Cells DOI

Luchan Huang,

Zhuangzhuang Chen,

Wenwen Chen

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 29, 2024

Interfacial engineering is essential to achieve optical efficiencies and facilitate the industrialization of organic solar cells (OSCs). By doping organosilica nanodots (OSiNDs) into zinc oxide (ZnO), we have developed a hybrid ZnO/OSiNDs (4 wt %) cathode interface layer (CIL) that significantly enhances overall performance inverted (i-OSCs). In PM6/BTP-eC9 active system, i-OSC devices with CIL exhibit superior power conversion efficiency (PCE) 17.49%, surpassing reference pure ZnO (15.88%). The OSiNDs not only modulate work function ZnO, thereby facilitating carrier transport between layer, but also enhance device stability. After exposure 1200 min 100 mW/cm

Language: Английский

Citations

0