极地的
荧光
光热治疗
材料科学
能量转换效率
光学
光电子学
纳米技术
物理
天文
作者
Hao‐Kai Peng,Xiao‐Feng Wu,Hongyan Zhao,Xiao‐Meng Wang,Tingting Li,Ching‐Wen Lou,Jia‐Horng Lin
摘要
Abstract The crucial point of solar thermal utilization makes solar heat collector gathering much attention. In this study, imitating polar bears' fur structure, fluorescent materials are modified into a solar heat collector, and the photothermal conversion is evaluated to examine the influence of polyvinyl alcohol concentration, fluorescent luminescence type and fluorescence concentration. The test results indicate that fluorescent materials that has a greater Stokes shift show the greater photothermal effect. Moreover, when composed of a PVA concentration being 5.0% and a fluorescent concentration being 0.50%, the composites exhibit the maximal photothermal conversion temperature (99.4°C) that is 17.9% higher than that of the solar heat collectors without fluorescent materials. This study proposes creating solar heat collector with modified fluorescent materials, and the new perspective of which demonstrates that the composites have a great potential and application prospect in the solar photothermal field.
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