Infrared Multiphoton Quantum Cutting Phenomena of Rare Earth Materials
CHEN Xiao-bo1, YANG Guo-jian1, ZHANG Yun-zhi2, DENG Zhi-wei1, HU Li-li3, LI Song1, YU Chun-lei3, CHEN Zhi-jian4, 5, CUI Jian-sheng1, CHEN Xiao-duan1, ZHOU Hong-yu1, WU Zheng-long1
1. Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China 2. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China 3. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China 4. Physics School, Peking University, Beijing 100871, China 5. Chemistry and Molecular Engineering School, Peking University, Beijing 100871, China
Abstract：Infrared quantum cutting of rare earth ion is an international hot research field. It is significant for the enhancement of solar cell efficiency and for the reduction of solar cell price. The present paper summarizes the research significance of infrared quantum cutting of rare earth ion. Based on the summarization of general principle and loss mechanism of solar cell, the possible method to enhance the solar cell efficiency by infrared quantum cutting is analyzed. Meanwhile, the present paper summarizes the infrared quantum cutting phenomena of Er3+ ion single-doped material. There is intense 4I13/2→4I15/2 infrared quantum cutting luminescence of Er3+ ion when the 2H11/2 energy level is excited. The intense {2H11/2→4I9/2，4I15/2→4I13/2} cross energy transfer is the main reason for the result in the high quantum cutting efficiency when the 2H11/2 energy level is excited.
Key words：Solar cell;Infrared quantum cutting;Rare earth ion
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