title: An intense NIR emission from Ca14Al10Zn6O35:Mn(4+),Yb(3+)via energy transfer for solar spectral converters.
abstract: To date, most current reports on the development and optimization of solar spectral converters have described the utilization of energy transfer among rare-earth ions. Here, we introduce non-rare-earth ion Mn(4+) to transfer energy to Yb(3+), which can exhibit strong near-infrared luminescence. It can harvest UV-blue photons and exhibits intense NIR emission of Yb(3+) around 1000 nm, perfectly matching the maximum spectral response of Si solar cells. It demonstrates for the first time that efficient energy transfer occurs with a decrease in the excited state lifetime and red photoluminescence (PL) from Mn(4+) with increasing Yb(3+) concentration. These results demonstrate that the Mn(4+) ions can be an efficient and direct sensitizer harvesting UV-blue photons. It could provide new avenues for developing harvesting Si-based solar cells.
authors.affiliation: State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. hpyou@ciac.ac.cn wlv@ciac.ac.cn.
authors.forename: Wei
authors.initials: W
authors.lastname: Lü
authors.affiliation: State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. hpyou@ciac.ac.cn wlv@ciac.ac.cn and University of the Chinese Academy of Sciences, Beijing 100049, P. R. China.
authors.forename: Mengmeng
authors.initials: M
authors.lastname: Jiao
authors.affiliation: State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. hpyou@ciac.ac.cn wlv@ciac.ac.cn and University of the Chinese Academy of Sciences, Beijing 100049, P. R. China.
authors.forename: Baiqi
authors.initials: B
authors.lastname: Shao
authors.affiliation: State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. hpyou@ciac.ac.cn wlv@ciac.ac.cn and University of the Chinese Academy of Sciences, Beijing 100049, P. R. China.
authors.forename: Lingfei
authors.initials: L
authors.lastname: Zhao
authors.affiliation: State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. hpyou@ciac.ac.cn wlv@ciac.ac.cn and University of the Chinese Academy of Sciences, Beijing 100049, P. R. China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Feng
authors.affiliation: State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. hpyou@ciac.ac.cn wlv@ciac.ac.cn.
authors.forename: Hongpeng
authors.initials: H
authors.lastname: You