Recently, Huarou Optoelectronics Technology (Wenzhou) Co., Ltd., an incubator of Wenzhou National University Science Park, has received great news: its independently developed single-junction perovskite solar cell has been certified by the National Photovoltaic Industry Metrology and Testing Center (NPVM). Under standard sunlight, the photoelectric conversion efficiency reaches 27.98, breaking the world record for this technical route.
Perovskite solar cells are new photovoltaic devices that use perovskite materials with specific crystal structures to capture light sources and convert them into electrical energy. Compared with traditional crystalline silicon cells, it has the advantages of lower cost, more flexible preparation process and lighter weight, which not only breaks through the inherent limitations of crystalline silicon cells in form and weight, but also highlights its weak light power generation performance, effectively filling the gap of the sudden drop of power generation efficiency in the weak light scene of traditional crystalline silicon cells. It is expected to cover applications that are difficult to reach with traditional photovoltaics.
in view of this, huarou photoelectric came up with a clever way to design three layers of protection from inside to outside: to develop more stable formula and better packaging materials; The battery structure is designed with a multi-layer "protective shell" to block the entry of water vapor and oxygen. Actively participate in the formulation of industry testing standards and win the long-term trust of the market with solid and repeatable data. "
the key to this breakthrough is that we have achieved innovation in the crystal quality control and interface defect regulation of perovskite films. in layman's terms, it is to improve some internal 'small flakes' in the manufacture of this new material film, so that electric energy can run more smoothly in it, reduce waste, and thus emit more electricity." Guan Hao, R & D engineer of Huarou Optoelectronics, told reporters that at present, the company's batteries are at the international leading level in core parameters such as open circuit voltage and fill factor.
" We are not only working on hard roof batteries, but also developing flexible perovskite batteries that can bend, in the future, it can be applied to consumer electronics products, Internet of Things devices, wearable devices such as clothes, backpacks, etc., and specific products are being developed with partners." Guan Hao introduced. Relying on the unique advantages of materials, Huarou Optoelectronics is actively laying out flexible, laminated, translucent and color perovskite cells and other multi-product forms, focusing on consumer electronics, Internet of Things terminals, building photovoltaic integration (BIPV), transportation energy integration and space energy and other cutting-edge scenarios. At present, the efficiency of perovskite cells developed on lightweight flexible substrates has exceeded 25%.
it is reported that huarou photoelectric has been deeply cultivating flexible perovskite technology for more than 10 years and officially entered Wenzhou national university science park in September 2023. As an innovation consortium jointly built by Wenzhou municipal government, ouhai district government, CLP Haikang group and Wenzhou advanced manufacturing technology research institute of Huazhong university of science and technology, the company gives full play to the synergistic advantages of "government-enterprise-research", builds a full-chain industrial platform of "research and development-pilot test-mass production", and accelerates the transformation of laboratory results to large-scale application.