Zhu, L. et al. Progress and prospects of the morphology of non-fullerene acceptor based high-efficiency organic solar cells. Energy Environ. Sci. 14, 4341–4357 (2021). Article Google Scholar ...
The surface properties of the substrate play a crucial role in regulating the morphology of active layers coated atop and the resulting photoelectronic properties in solution-processed organic photovoltaic (OPV) cells. However, current studies on the relationship between the surface free energy (γS) of the s
In the field of organic photovoltaics, the power conversion efficiency of single junction solar cells continues to improve. However, tandem organic solar cells are poised to push the efficiency limits even further and offer a promising avenue for improving the performance of organic photovoltaic devices.
In order to increase the PCE of organic solar cells and reduce energy losses , the construction of tandem organic solar cells is an effective strategy . In the tandem structure, there are two choices of active layer materials for the sub-cells.
19.9% efficiency is obtained in homojunction tandem organic solar cells, which is currently the highest reported. In the field of organic photovoltaics, the power conversion efficiency of single junction solar cells continues to improve.
Among our tested devices, the OPV cell prepared with toluene as the solvent and 1,8-diiodooctane (DIO) as the additive displayed the best performance, with a power conversion efficiency (15.8 ± 0.20%) comparable with that of the chloroform-derived OPV (16.2 ± 0.1%).
This study demonstrates that finely tuning the OPV materials to reduce the bandgap-voltage offset has great potential for boosting the efficiency. Halogenation has proved an effective strategy to improve the power conversion efficiencies of organic solar cells but it usually leads to lower open-circuit voltages.
Zhu, L. et al. Progress and prospects of the morphology of non-fullerene acceptor based high-efficiency organic solar cells. Energy Environ. Sci. 14, 4341–4357 (2021). Article Google Scholar ...
Due to the simultaneously improved short-circuit current density and open …
In this work, we report high-efficiency non-fullerene organic photovoltaic (OPV) cells with over 30% power conversion efficiency (PCE) in indoor conditions. Our results show that the choice of electron-transporting layer (ETL) is important to enable such performance. The use of an ETL (named PDI-NO) with a deep highest occupied molecular ...
The absence of near-infrared (NIR) solar cells with high open circuit voltage (Voc) and external quantum efficiency (EQE) has impeded progress toward achieving organic photovoltaic (OPV) power conversion efficiency PCE > 15%. Here we report a small energy gap (1.3 eV), chlorinated nonfullerene acceptor-based solar cell with PCE = 11.2 ± 0.4%, short …
The organic photovoltaic cell in the study achieved 17 % efficiency by optimizing non-fullerene electron acceptors, showing promise for high efficiency and scalable production, addressing current challenges in OPV technology.
In the field of organic photovoltaics, the power conversion efficiency of single junction solar cells continues to improve. However, tandem organic solar cells are poised to push the efficiency limits even further and offer a promising avenue for improving the performance of organic photovoltaic devices. This study reports the development of an ...
The OSCs based on multicomponent photoactive layer deliver a high power conversion efficiency of 11.8% and exhibit excellent device stability for over 1000 h (>80% of their initial efficiency ...
In this paper we describe high-performance PM6:BTP-eC9–based organic photovoltaic (OPV) cells prepared using non-halogen solvents, with the goal of minimizing any potential environmental pollution. We investigated three green solvents (toluene, o -xylene, and 1,2,4-trimethylbenzene) as replacements for the commonly used chloroform.
All-polymer organic photovoltaic (OPV) cells possessing high photovoltaic performance and mechanical robustness are promising candidates for flexible wearable devices. However, developing photoactive materials with good …
Attractively, the P3HT:ZY-4Cl blend film subject to thermal annealing for merely 30 seconds gave rise to a remarkable power conversion efficiency of ∼10.7%, which is the best efficiency of P3HT-based organic photovoltaic cells at present. The research shed light on the morphological optimization and cost-effective processing of polythiophene:nonfullerene blends for …
However, tandem organic solar cells are poised to push the efficiency limits even further and offer a promising avenue for improving the performance of organic photovoltaic devices. This study reports the development of an all-solution processed interconnecting layer (ICL) based on ZnO NPs:PEI/PEI/PEDOT:PSS/2PACz for tandem solar cells. The PM6 ...
Due to the simultaneously improved short-circuit current density and open-circuit voltage, a high efficiency of 16.5% is achieved. This study demonstrates that finely tuning the OPV materials...
The organic photovoltaic cell in the study achieved 17 % efficiency by optimizing non-fullerene …
Attractively, the P3HT:ZY-4Cl blend film subject to thermal annealing for merely 30 seconds gave rise to a remarkable power conversion efficiency of ∼10.7%, which is the best efficiency of P3HT-based organic photovoltaic cells at present. The research shed light on the morphological optimization and cost-effective processing of polythiophene ...
Obtaining controllable morphology in organic solar cells (OSCs) has long been sought to …
Obtaining controllable morphology in organic solar cells (OSCs) has long been sought to improve the photovoltaic efficiency and long-term stability for meaningful applications. Herein, we report a conceptual multiple acceptor OSC based on co-acceptor guests. Through monitoring the solution phase to solid-sta Solar energy showcase
Chen, Z. et al. Triplet exciton formation for non-radiative voltage loss in high-efficiency nonfullerene organic solar cells. Joule 5, 1832–1844 (2021). Article CAS Google Scholar
The nonradiative energy loss (∆Enr) is a critical factor to limit the efficiency of organic solar cells. Generally, strong electron-phonon coupling induced by molecular motion generates fast ...
3 · Organic solar cells (OSCs) have developed rapidly in recent years. However, the energy loss (Eloss) remains a major obstacle to further improving the photovoltaic performance. To address this issue, a ternary strategy has been employed to precisely tune the Eloss and boost the efficiency of OSCs. The B‒N-based polymer donor has been proved process high E(T1) …
Here, we demonstrate that the fine-modification of the flexible side chains of NFAs can yield 17% PCE for OPV cells. More crucially, as the optimal NFA has a suitable solubility and thus a desirable morphology, the high efficiencies of spin-coated devices can be maintained when using scalable blade-coating processing technology.
In this paper we describe high-performance PM6:BTP-eC9–based organic …
6 · Polythiophene donors offer scalable and cost-effective solutions for the organic …
Organic solar cells, also known as organic photovoltaics (OPVs), have become widely recognized for their many promising qualities, such as: Ease of solution processability Tuneable electronic properties Possibilities for low temperature manufacturing Cheap and light materials. Whilst several other photovoltaic technologies have higher efficiencies, OPVs remain advantageous …
6 · Polythiophene donors offer scalable and cost-effective solutions for the organic photovoltaic industry. A thorough understanding of the structure–property–performance relationship is essential for advancing polythiophene-based organic solar cells (PTOSCs) with high power conversion efficiencies (PCEs). Herein, we develop two polythiophene …
The surface properties of the substrate play a crucial role in regulating the …
The surface properties of the substrate play a crucial role in regulating the morphology of active layers coated atop and the resulting photoelectronic properties in solution-processed organic photovoltaic (OPV) cells. However, current studies on the relationship between the surface free energy (γS) of the s
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