The efficiency of silicon (Si)-based solar cells has nearly reached its maximum capacity at approximately 25%. Conversely, III-V compound semiconductor-based solar cells have consistently exhibited enhancements in performance, increasing by approximately 1% annually. These solar cells recently accomplished a remarkable efficiency of 47.1%.
LONGi announced today that it has set a new world record of 27.09% for the efficiency of crystalline silicon heterojunction back-contact (HBC) solar cells. LONGi announced today that it has set a new world record of 33.9% for the efficiency of crystalline silicon-perovskite tandem solar cells.
Silicon solar cells have a limited ability to capture low-energy photons, which limits their efficiency, especially in low-light conditions. Moreover, the practical limits in obtaining maximum efficiency are restricted by many factors including different types of recombinations and losses (Shah et al., 2004).
Solar cells that combine traditional silicon with cutting-edge perovskites could push the efficiency of solar panels to new heights. Beyond Silicon, Caelux, First Solar, Hanwha Q Cells, Oxford PV, Swift Solar, Tandem PV 3 to 5 years In November 2023, a buzzy solar technology broke yet another world record for efficiency.
The efficiency of a-Si:H solar cells typically ranges from 7% to 10%, and they are distinguishable from conventional crystalline silicon solar cells by their disordered atomic arrangement, which has a single crystal structure (Idda et al., 2023). The highest efficiency of a-Si cell is found as 12.69%, which is provided in Table 2.
Here, we present the progresses in silicon heterojunction (SHJ) solar cell technology to attain a record efficiency of 26.6% for p-type silicon solar cells. Notably, these cells were manufactured on M6 wafers using a research and development (R&D) production process that aligns with mass production capabilities.