Solar cells and organic chemistry
1 · After the incorporation of NFA-5 into the binary bulk heterojunction D18:NFA-4, the ternary organic solar cells attained a power conversion efficiency of 18.05 %, which is higher than that for the binary counterparts and attributed to the increased values of short circuit current, fill factor, and open circuit voltage.
Chemistry – A European Journal
1 · After the incorporation of NFA-5 into the binary bulk heterojunction D18:NFA-4, the ternary organic solar cells attained a power conversion efficiency of 18.05 %, which is higher than that for the binary counterparts and attributed to the increased values of short circuit current, fill factor, and open circuit voltage.
Green solvent-processed organic solar cells based on a small …
Small-molecule octahedral cyclometalated Ir(III) complexes as photoactive materials have attracted specific attention in organic solar cells (OSCs) due to the potential utilization of triplet excitons.Different from previous work on the design of new Ir complexes, herein, we developed an effective device optimization strategy through the synergistic …
Advantages, challenges and molecular design of different ...
This Review summarizes the types of materials used in the photoactive layer of solution-processed organic solar cells, discusses the advantages and …
Symmetry-Induced Orderly Assembly Achieving …
Introduction. The field of nonfullerene organic solar cells (OSCs) has progressed rapidly due to the efforts devoted to developing nonfullerene acceptors, especially small-molecular acceptors (SMAs). 1, …
Photoinduced Charge Transfer and Recombination Dynamics in …
Nonfullerene acceptors (NFAs) are regarded as star candidates for efficient organic solar cells with power conversion efficiency (PCE) over 18%. In contrast to the rapid development of NFA materials, however, the underlying excited-state dynamics which fundamentally govern the device performance remains unclear. In this …
Progress in Organic Solar Cells: Materials, Physics and Device ...
Organic solar cells (OSCs) have been developed for few decades since the preparation of the first photovoltaic device, and the record power conversion efficiency …
Institute of Physical Chemistry and Linz Institute for Organic Solar Cells
Organic solar cells for a better future. The sun is the oldest deity worshipped by humans for good reason. "It is the best and cleanest source of energy we know," says physicist Niyazi Serdar Sariciftci.
Recent advances in organic solar cells: materials, design, and ...
Organic solar cells have emerged as promising alternatives to traditional inorganic solar cells due to their low cost, flexibility, and tunable properties. …
Organic photovoltaics: the path to lightweight, flexible …
Osaka''s lab at Hiroshima University works with so-called π-conjugated (pi-conjugated) polymers, which can be used to make solar cells that convert light into energy, similarly to traditional ...
Molecular Engineering of Quinoxaline-Based Organic Sensitizers …
A series of quinoxaline based metal-free organic sensitizers has been designed and synthesized for dye-sensitized solar cells (DSSCs). The absorption, electrochemical, and photovoltaic properties for all sensitizers have been systematically investigated. It is found that the incorporation of quinoxaline unit instead of thienopyrazine unit results in a …
Lattice Dynamics of Cu2ZnSn(Sx,Se1–x)4 Kesterite Thin-Film Solar Cells ...
1 · Phonons play a crucial role in thermalization and non-radiative recombination losses in semiconductors, impacting the power conversion efficiency of solar cells. To shed light on the lattice dynamics in Cu2ZnSn(Sx,Se1–x)4 (CZTSSe) thin-film solar cells and validate the extensive number of theoretical studies, we determine the 119Sn-partial phonon …
Molecular Understanding of Organic Solar Cells: The Challenges
First, we provide an overview of the optical and electronic processes that take place in a solid-state organic solar cell, which we define as a cell in which the …
All-Small-Molecule Nonfullerene Organic Solar Cells with High Fill ...
The all-small-molecule organic solar cell (SM-OSC) with SM1 as donor and a narrow bandgap n-OS IDIC as acceptor demonstrated a high power conversion efficiency ... Tuning the Solution Aggregate Structure of a PM7-Based Conjugated Polymer to Enable Green Solvent Processing of Organic Solar Cells. Chemistry of Materials …
Recent Advances of Computational Chemistry in Organic Solar Cells
The precise design of organic photovoltaic materials and the control of morphology in active layer are crucial for achieving high-performance organic solar cells (OSCs).
Silicon‐ and Germanium‐Functionalized Perylene ...
Organic solar cells. To evaluate their photovoltaic properties, the non-fullerene acceptors were applied in combination with the conjugated polymer PM6 (depicted in Figure 5) in bulk heterojunction organic solar cells. The solar cells were prepared using an inverted device structure with the layer sequence ITO/ZnO/active layer/MoO 3 /Ag …
Delicate chemical structure regulation of nonfullerene acceptor for ...
Besides, CH-Tz shows potential in fabricating multicomponent high-performance organic solar cells, where over 19% efficiency could be realized in the quaternary device. Our work advances the strong influence of electron-deficient central units on molecular photovoltaic properties and guides the design of acceptors for stable and …
Recent advances in PM6:Y6-based organic solar cells
The last two years have witnessed rapid progress in organic solar cells (OSCs), driven by the newly-developed nonfullerene acceptor (NFA) Y6, which contains an electron-deficient core-based central fused ring. Inspired by Y6, a lot of novel Y-series NFAs with A–DA′D–A structures and matched polymer donors ha 2021 Materials Chemistry …
Organic Solar Cells Based on Non‐Fullerene Low Molecular Weight Organic …
European Journal of Organic Chemistry; ChemistryOpen. Open access. ChemistrySelect ; Chemistry—Methods. Open access. Analysis & Sensing ; Analytical Science Advances. ... have been accomplished in all-small molecule organic solar cells using narrow bandgap non-fullerene small molecule acceptors along with small molecule …
Additive-assisted strategy for high-efficiency organic solar cells
Due to the unique properties of organic semiconductors, donor/acceptor materials in organic solar cells (OSCs) have to achieve nano-scale bicontinuous interpenetrating networks with a thickness of hundreds of nanometers to ensure efficient exciton dissociation and charge carrier transport simultaneously, thu Journal of Materials …
Molecular level changes translate to big efficiency gains for organic ...
Organic solar cells (OSCs)—promising alternatives to traditional inorganic solar cells—have many features that make them key players in a greener future. One of these features is tunable chemistry, which allows scientists to precisely adjust or modify the properties of chemical systems to achieve desired outcomes. Now, …
High-Efficiency and Low-Energy-Loss Organic Solar Cells ...
Introduction. Organic solar cells (OSCs) have attracted much attention from both academia and industry, owing to their potential as a next-generation photovoltaic technology. 1, 2 Decades of research efforts have provided a good understanding of molecular design principles and device engineering strategies, affording the state-of-the …
Faces of Chemistry – Organic solar cells | Resource | RSC Education
Explore the chemistry of organic photovoltaics (organic solar cells) as a scientist from BASF explains the technology used in the Smart Forvision car. Organic solar cells - video 1 (11+ years) A scientist from BASF explains why new organic solar cells could be a cost-effective, sustainable energy source for the future, e.g. in electric cars.
Open-Shell Donors and Closed-Shell Acceptors in …
The active materials of organic solar cells are recognized to show a singlet ground state, and their photo-excited states have been widely investigated in previous work. Herein, we disclose the inherent …
Photoinduced Charge Transfer and Recombination …
Nonfullerene acceptors (NFAs) are regarded as star candidates for efficient organic solar cells with power conversion efficiency (PCE) over 18%. In contrast to the rapid development of NFA materials, …
High-efficiency organic solar cells enabled by halogenation of polymers ...
With the rapid development of non-fullerene acceptors, polymer donor design is critical for the realization of significantly higher power conversion efficiencies in organic solar cells (OSCs). The donor–acceptor (D–A) alternating structure is an effective strategy for the design of polymers due to its advant