Dr. Hae Jung Son’s team at KIST implemented high-efficiency solar cell technology on a large area through solution process method that utilizes spin coating.
CREDIT: Korea Institute of Science and Technology (KIST)
Researchers identify the principles necessary for designing the core material of large-area solution processable solar cells. Future application as plastic-based photovoltaic paint technology.
Researchers in Korea have successfully developed a high-efficiency large-area organic solution processable solar cell by controlling the speed at which the solution of raw materials for solar cells became solidified after being coated. The team led by Dr. Hae Jung Son from the Photo-electronic Hybrids Research Center of the Korea Institute of Science and Technology (KIST) announced that they have identified the difference in the mechanism of film formation between a small area and a large area of organic solar cells in a solution process and, by resolving the issue concerning the related process technology, developed a high-efficiency large-area organic photovoltaics.
If a photovoltaic material is made in the form of paint that can be applied to any surface, such as the exterior of a building or a car, it will be possible to achieve energy self-sufficiency and provide low-cost eco-friendly energy to those suffering from energy poverty. Not only that, it will be easy to utilize space for installation of photovoltaics even on urban buildings, and ideally, the photovoltaic panels will be maintained by re-applying the “paint.”
When it comes to solution processable solar cells, which work by coating the surface with the solar cell solution, the photoactive area that generates electricity still remain on a laboratory scale (less than 0.1?). When applied to a large area to produce sufficient electric power for it to be practical, there are issues related reduced performance and reproducibility due to material- and process-related limitations, and this has been an obstacle to commercialization.
Dr. Son’s team at KIST revealed that commercially available organic materials become easily crystallized, which makes them unsuitable for large-area solution processes. In the case of the large-area solution process for industrial uses, the process through which the solvent in which the solar cell material is dissolved evaporates to form a film occurs slowly, thereby resulting in agglomeration and other phenomena, and this in turn lowers the efficiency of the solar cell. As for the spin coating method, which is a small-area process employed in laboratory research, the substrated is rapidly rotated during the film formation process in order to speed up the solvent evaporation, and this makes it possible to form a film without the aforementioned problem concerning reduced efficiency.
Based on this information, KIST researchers developed high-performance large-area organic photovoltaics by controlling the solvent evaporation rate following the coating step in a large-area solution process as a way to form a film optimized for solar cell performance. As a result, high-efficiency large-area organic photovoltaics with 30% higher power conversion efficiency than existing photovoltaics were attained.
Dr. Son said, “The core design principles of solar cell materials capable of high-quality large-area using the solution will accelerate the development of solution processable solar cells in the future. [This study] has contributed to not only raising the efficiency of next-generation solution processable solar cells but also the development of core technology for manufacturing large-area solar cell materials required for commercialization.”
The Latest Updates from Bing News & Google News
Go deeper with Bing News on:
- Raw material R142b has skyrocketed by 12 times in the past year. Next year, the PVDF gap of lithium level may increase.
Under the continuous expansion of application demand in lithium battery manufacturing, photovoltaic backplane and energy storage, PVDF (polyvinylidene fluoride) has shown explosive growth. R142b, as ...
- Solar PV Modules Market Share 2021 SWOT Analysis, Latest Trends, Dynamics, Competitive Landscape, Growth Prospects and Forecast to 2026
Final Report will add the analysis of the impact of COVID-19 on this industry” Global “Solar PV Modules Market” ...
- Heating A Home With Sunlight… And Water
The sun is a tremendous source of energy, and while photovoltaic panels are an easy way to harvest some of that energy especially now that prices for them are incredibly low, there are plenty of ...
- Ametek acquires Atlas in measurement and testing M&A
The company's weather-testing services include photovoltaic and solar testing, with customers working in aerospace, paint, coating, plastics, pharmaceutical, LED, and automotive. Ametek described ...
- Sustainability Campus Tour
and universal waste items like batteries and paint on all campuses. Look for four-bin sorting systems in every building. 6. Solar Thermal and Photovoltaic (PV) Panels are mounted on C Building for ...
Go deeper with Google Headlines on:
Go deeper with Bing News on:
High-performance large-area organic photovoltaics
- Modeling Wing Nanostructures to Improve Solar Technologies
An example of the technologies associated with harvesting energy from solar light is by using Solar photovoltaic (Solar PV), which converts sunlight directly into electricity using solar PV cells. The ...
- Transition metal dichalcogenide solar cell with 5.1% efficiency
Transition metal dichalcogenides (TMDs) are two-dimensional materials with remarkable semiconducting properties and high ... told pv magazine. “The methods for scalable and large-area ...
- Printed Electronics in 2021: Emerging Applications Accelerate Towards Adoption
However, 2021 has been an exciting year for printed electronics, with multiple applications reaching commercial adoption and significant funds flowing into the sector. Even where technologies are not ...
- Isomer passivation for a 21.4% efficient perovskite module
and reach 21.4% conversion efficiency for a 26cm² active area, which they claim as a record for a perovskite device of this size. While the potential for perovskite solar cells to reach high ...
- The U.K. Pharmacovigilance Market Size is Expected to Reach USD 510.37 Million by 2028
Moreover, the introduction of technologically advanced and user-friendly software systems, such as cloud-based PV platforms ... technologies and COVID-19 high-performance computing consortium ...