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.
Progress of organic photovoltaics towards 20% efficiency
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 ...
Over 16% efficiency organic photovoltaic cells enabled by a
Due to the simultaneously improved short-circuit current density and open …
High-Efficiency Indoor Organic Photovoltaics with a Band …
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 ...
High Efficiency Near-Infrared and Semitransparent Non-Fullerene ...
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 …
Insight into organic photovoltaic cell: Prospect and challenges
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.
High efficiency homojunction tandem organic solar cells with all ...
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 ...
Efficient and stable organic solar cells enabled by ...
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 ...
High-efficiency organic photovoltaic cells processed using a …
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.
High‐Efficiency and Mechanically Robust All‐Polymer …
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 …
Delicate crystallinity control enables high-efficiency P3HT organic …
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 …
High efficiency homojunction tandem organic solar cells with all ...
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 ...
Over 16% efficiency organic photovoltaic cells enabled by a
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...
Insight into organic photovoltaic cell: Prospect and challenges
The organic photovoltaic cell in the study achieved 17 % efficiency by optimizing non-fullerene …
Delicate crystallinity control enables high-efficiency P3HT organic …
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 ...
A high-efficiency and stable organic solar cell with balanced ...
Obtaining controllable morphology in organic solar cells (OSCs) has long been sought to …
A high-efficiency and stable organic solar cell with balanced ...
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
Highly efficient organic solar cells enabled by suppressing triplet ...
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
Suppressing electron-phonon coupling in organic photovoltaics for high ...
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 ...
Efficient Ternary Organic Solar Cells with Suppressed …
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) …
Organic photovoltaic cell with 17% efficiency and superior ...
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.
High-efficiency organic photovoltaic cells processed using a non ...
In this paper we describe high-performance PM6:BTP-eC9–based organic …
Nanoscale Balance of Energy Loss and Quantum Efficiency for …
6 · Polythiophene donors offer scalable and cost-effective solutions for the organic …
Organic Solar Cells: An Introduction to Organic Photovoltaics
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 …
Nanoscale Balance of Energy Loss and Quantum Efficiency for High ...
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 …
Interlayer surface energy control for high-efficiency printed …
The surface properties of the substrate play a crucial role in regulating the …
Interlayer surface energy control for high-efficiency printed organic ...
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