Abstract
To reduce energy losses by thermalization of charge carriers in a silicon solar cell, quantum-cutting luminescent materials are desired for the efficient downconversion of UV–visible radiation into near-IR radiation. In this Letter, quantum cutting involving emission of two near-IR photons for each UV-blue photon absorbed is demonstrated in nanocrystals embedded in transparent bulk-glass ceramics. Upon excitation of an ion with a UV-blue photon, ions emit two near-IR photons through an efficient two-step energy transfer from to with acting as the intermediate state.
© 2010 Optical Society of America
Full Article | PDF ArticleMore Like This
Daqin Chen, Yuansheng Wang, Yunlong Yu, Ping Huang, and Fangyi Weng
Opt. Lett. 33(16) 1884-1886 (2008)
Hang Lin, Daqin Chen, Yunlong Yu, Anping Yang, and Yuansheng Wang
Opt. Lett. 36(6) 876-878 (2011)
Wenli Zhou, Ye Li, Ronghuan Zhang, Jing Wang, Rui Zou, and Hongbin Liang
Opt. Lett. 37(21) 4437-4439 (2012)