Ground Screw For Solar Power System Ground Screw for solar power system is applied in fixation of solar panel. Pole anchor and Earth Anchor are fit for outdoor as the spiral pile mounting system adopts special materials that can resist corrosion, like HDG (hot dip galvanizing) and anodized silver15μm, screw pole mount system is adaptable for different soils. Additionally, it is easy to install. After it is removed, the vegetation can soon recover to reduce harm to surroundings. Ground Screw For Solar Power System,Ground Mount Solar Foundations,Solar Ground Screws,Ground Screw Anchor Hebei Honde Plastic & Metal Co., Ltd. , https://www.foundation-system.com
Advantages:
1. Simple installation
There is no need to do welding or surface treatment, which saves time and cost. You just need to drill. Generally speaking, it just takes one day to install one screw pole mount system with 100-200 ground screws.
2. Large-scale application scope The screw pole mount system is suitable for different soils, like soft soil, bed rock, swamp and slope with more than 30°..
3. Spiral pile mounting system can work together with different support structures. The ground screw can be made according to client`s requirements.
4. Adaptable for different environment and environmental-friendly
There is no need to do much preparation for installation and there is no harm to environment during installation. Besides, ground screw can protect PV equipment and can be recycled.
5. Convenient transformation
Screw pole mount system can be transformed easily without damage to vegetations. Additionally, it is simple to reinstall.
the advantages of ground-screws for mounting solar photovoltaic systems
-Usually less invasive and landscape-altering than traditional mounting systems such as the half A-frames that are typically installed on cement slabs
-Screws can be easily adjusted to less serious gradients so mounting-frames are installed level: less complicated earthwork and engineering involved as compared to cement slabs
-More aesthetically pleasing than a cement mounting platform: shade-tolerant grasses and plants can easily grown beneath them
Research on flexible organic solar cells in Ningbo Materials has made progress
In recent years, the wearable electronics market has grown rapidly, driving increasing demands for efficient and reliable power solutions. Organic solar cells stand out as a promising option due to their lightweight nature, customizable designs, and ease of fabrication. While rigid organic solar cells have achieved efficiencies exceeding 19%, their flexible counterparts face challenges in both efficiency and durability. This has made the development of flexible organic solar cells with high performance and robust mechanical properties a significant challenge.
Recently, researchers from the Institute of Ningbo Materials Technology and Engineering at the Chinese Academy of Sciences proposed a novel approach by incorporating flexible oligomer acceptors as the third component in the active layer of organic solar cells. This innovative strategy aims to enhance both the photoelectric conversion efficiency and the mechanical stability of these cells, offering a straightforward pathway to fabricating advanced flexible organic solar cells. By experimenting with various flexible bridging segments, they developed a series of oligomeric acceptor materials—DOY-C2, DOY-C4, and TOY-C4—with differing bridging units and polymerization degrees. These materials demonstrated distinct mechanical properties and aggregation behaviors due to variations in polymerization levels and bridge unit flexibility. Compared to traditional small molecule acceptors like N3, these flexible oligomers showed superior mechanical resilience.
To evaluate the impact of the oligomer acceptors on cell efficiency, corresponding rigid solar devices were fabricated. Characterization tests revealed that the inclusion of oligomer receptors primarily reduced non-radiative energy losses, boosting the open-circuit voltage of the cells. Devices based on D18:N3:DOY-C4 achieved a remarkable rigid efficiency of 19.01% and a flexible efficiency of 17.91%, marking one of the highest flexible organic solar cell efficiencies reported to date.
Further analysis focused on the mechanical properties of the active layer materials through tensile testing. Mixed films doped with 15% DOY-C4 displayed a fracture elongation of nearly 12%, representing a 50% improvement over the 7.8% exhibited by the D18:N3 mixed film. The study highlighted that the flexible oligomer acceptors interact with polymer donors to create an entangled network, significantly enhancing the mechanical integrity of the films.
The research findings were published in *Advanced Materials* under the title *"Ductile Oligomeric Acceptor-Modified Flexible Organic Solar Cells Show Excellent Mechanical Robustness and Near 18% Efficiency."* The project received support from the National Natural Science Foundation of China, the National Outstanding Youth Science Foundation, Ningbo Key Science and Technology Projects, and the Zhejiang Provincial Natural Science Foundation.
*Figure 1: Structures of polymer donor D18, small molecule acceptor N3, and oligomer acceptor materials.*
*Figure 2: Photovoltaic conversion efficiency and related parameter characterization results.*
*Figure 3: Stress-strain curves of different films before and after stretching.*