Monday, June 24, 2024

Korean researchers construct vertical photo voltaic panels with low reflection losses – pv journal Worldwide


The modules are geared up with Maxeon photo voltaic cells and a microprism sheet that reportedly helps a transmittance of over 99%. The microprism array is printed on a PET sheet utilizing a roll-to-roll embossing method.

A gaggle of researchers from Korean conglomerate Hyundai Motor Group and Kyung Hee University have developed a brand new vertical photo voltaic module idea for functions in present out of doors or city buildings the place land is restricted.

“This idea is a know-how that will increase the quantity of daylight incident with out inner modification of the photo voltaic cell,” the lead creator of the analysis, Byunghong Lee, stated. pv journal. “The largest benefit of this know-how is that it’s cheap as a result of it may be used with industrial polyethylene terephthalate (PET) movies.”

The panels are geared up with microprism-imprinted polyethylene terephthalate (PET) sheets that reportedly scale back reflection loss whereas supporting a transmittance of over 99%. The microprism array is printed on a PET sheet utilizing a roll-to-roll embossing method.

“This methodology permits for the scalability of microprism sheets to bigger dimensions, even meters, whereas sustaining the precise copy of the microprism morphology,” defined the scientists, including that the sheet is then hooked up to the module by of an adhesive index-matching gel. .

The group constructed an experimental module with photo voltaic cells from Singapore-based producer Maxeon and simulated its efficiency in real-world situations in Uiwang, South Korea. The machine is uncovered to direct daylight, which follows a straight path from the solar to the cells, and diffuse daylight, which is scattered by atmospheric particles and clouds.

The evaluation reveals that the module can obtain the next degree of energy era in comparison with typical modules mounted vertically, which is attributed to the omnidirectional antireflection traits of the microprism sheet.

“The measured outcomes reveal a constant pattern of improved vitality era utilizing the microprism sheet in the course of the lengthy check interval,” the teachers stated. “The developed microprism sheet reveals promise for preserving pure PV efficiency towards the affect of weather-related components. During testing, we didn’t discover any pollution-related degradation.”

According to the analysis group, the microprism sheet has a reflectance under 0.01, indicating that it has higher omnidirectional antireflective properties in comparison with conventional single-layer and multilayer antireflective coatings. “Indoor and out of doors testing proves that the microprism sheet can contribute to the vitality harvesting of straight SPs in any set up location all year long,” it concluded.

The novel idea was launched within the paper “High-efficiency upright photo voltaic panels with antireflective microprism-imprinted sheets,” revealed in Cell Reports – Physical Science. “To additional confirm the impact, a long-term out of doors check is required in numerous areas at completely different latitudes,” stated the scientists, referring to the longer term work they need to do to enhance the proposed know-how.

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