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Published on: September 12, 2014
Single-photon upconversion in 6-pentaceneone crystal from bulk to ultrathin flakes
Yue-E Huang1, Xing-Zhi Wang2, Peng Hu3
1College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, China. sherrywu@fjnu.edu.cn duke@fjnu.edu.cn.
Abstract:
Phonon-assisted single-photon upconversion, which was not previously reported in organic materials, has been demonstrated in the 6-pentaceneone crystal through the linear pumping power dependent anti-Stokes photoluminescence (ASPL), nanoseconds PL lifetime and quenched ASPL at low temperature. Furthermore, the 6-pentaceneone crystal can be mechanically exfoliated to ultrathin flakes and it exhibits thickness-dependent photoluminescence.

