Three Gorges University professor developed a basic thickness of 16 microns thin crystalline silicon solar cells

"90% reduction in battery thickness, 90% reduction in material use, and 16.4% photoelectric conversion rate." Reporter learned from the Three Gorges University on the 29th, the school professor Tan Xinyu Karlsruhe Institute of Technology, Germany and Dr. Wen Wensheng successfully developed a substrate thickness of 16 microns ultra-thin crystalline silicon solar cells and successfully solve the ultra-thin crystalline silicon solar cells Low absorption, low efficiency problems.

It is understood that crystalline silicon solar cells occupy more than 90% of the PV market share, with absolute market advantage, but the current market typical crystalline silicon solar cell thickness of about 180 microns, the need for extensive use of silicon materials and lead to high production costs , Research and development of ultra-thin crystalline silicon cells become one of the major technology routes.

Professor Tan Xinyu cooperation design and manufacture of crystalline silicon solar cells to give up the thickness of the commonly used crystalline silicon cell substrate, the choice of ultra-thin crystalline silicon, the ultimate success of the ultra-thin crystalline silicon solar cells developed only one-tenth of the market thickness of the battery, the use of materials Reduced by 90%.

Professor Tan Xinyu introduced thin silicon solar cells can easily lead to reduced light absorption efficiency and reduce solar cell photoelectric conversion efficiency. In response to this problem, the subject group theory simulation and experimental preparation combined to find the sunlight trapped in the battery trap technology, the conversion rate of 16.4% obtained thin-film crystalline silicon solar cell devices in the conversion efficiency in this The field is in the world's leading level.

At present, the research results have been published in the form of papers in the world-renowned magazine "Optical Express" on. Due to the study of the trapping technology and the existing industrial preparation process to match, make it a substantial increase in the possibility of industrial mass production.

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