Bright Photon Upconversion on Composite Organic Lanthanide Molecules through Localized Thermal Radiation,The Journal of Physical Chemistry Letters

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Bright Photon Upconversion on Composite Organic Lanthanide Molecules through Localized Thermal Radiation
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2017-11-09 00:00:00 , DOI: 10.1021/acs.jpclett.7b02513
Huanqing Ye ₁ , Viktor Bogdanov _{1,

2} , Sheng Liu ₁ , Saumitra Vajandar ₃ , Thomas Osipowicz ₃ , Ignacio Hernández _{4,

5} , Qihua Xiong _{1,

6,

7}

Affiliation

Converting low-energy photons via thermal radiation can be a potential approach for utilizing infrared (IR) photons to improve photovoltaic efficiency. Lanthanide-containing materials have achieved great progress in IR-to-visible photon upconversion (UC). Herein, we first report bright photon, tunable wavelength UC through localized thermal radiation at the molecular scale with low excitation power density (<10 W/cm²) realized on lanthanide complexes of perfluorinated organic ligands. This is enabled by engineering the pathways of nonradiative de-excitation and energy transfer in a composite of ytterbium and terbium perfluoroimidodiphosphinates. The IR-excited thermal UC and wavelength control is realized through the terbium activators sensitized by the ytterbium sensitizers having high luminescence efficiency. The metallic molecular composite thus can be a potential energy material in the use of the IR solar spectrum for thermal photovoltaic applications.

中文翻译：

通过局部热辐射对复合有机镧系分子进行明亮的光子上转换

通过热辐射转换低能光子可能是利用红外（IR）光子提高光伏效率的一种潜在方法。含镧系元素的材料在红外到可见光子的上转换（UC）中取得了很大的进步。在此，我们首先通过分子尺度上的局部热辐射通过低激发功率密度（<10 W / cm ^2）报告明亮的光子，可调谐波长UC。）在全氟化有机配体的镧系元素络合物上实现。通过设计per和and全氟亚胺基二亚膦酸酯复合材料中的非辐射去激发和能量转移途径，可以实现这一点。通过具有高发光效率的by敏化剂敏化的the活化剂来实现IR激发的热UC和波长控制。因此，在将IR太阳光谱用于热光伏应用中时，金属分子复合物可以是势能材料。

更新日期：2017-11-09

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