Coldrick Kenneth, Newman Craig, Doran John, Amarandei George, Filatov Mikhail A
School of Physics, Clinical and Optometric Sciences, Technological University Dublin, City Campus, Grangegorman Lower, D07 ADY7 Dublin, Ireland.
The Group of Applied Physics, Technological University Dublin, City Campus, Grangegorman Lower, D07 ADY7Dublin, Ireland.
ACS Appl Opt Mater. 2024 Sep 4;2(9):1985-1998. doi: 10.1021/acsaom.4c00309. eCollection 2024 Sep 27.
A library of boron dipyrromethene (BODIPY) compounds was studied to assess their efficacy as components of a working liquid in hybrid photovoltaic-thermal (PVT) systems. Two series of BODIPY dyes were investigated: series I included alkylBODIPYs with varying substitution patterns, while series II included 1,3,5,7-tetramethyl-substituted BODIPYs featuring electron-rich aromatic groups in the position, such as naphthalene, anthracene, and carbazole. Series II dyes were designed to exhibit luminescence downshifting due to enhanced UV absorption (300-400 nm) and excited-state energy transfer, leading to visible-region fluorescence under UV excitation. Samples of PVT liquids based on decalin and containing each individual BODIPY dye were tested on a standard a-Si solar cell to evaluate their impact on solar energy conversion efficiency. The thermal behavior of the working liquid and the cell during the illumination cycle was monitored, alongside the cell's electrical characteristics. Energy conversion pathways and the overall effects of the dyes on the system performance were scrutinized. Results indicated that all BODIPY dyes enhanced both the electrical conversion efficiency (up to 2.41% increase) and thermal energy generation (up to 6.87%) compared to the solvent alone. These findings highlight the potential of BODIPY dyes to significantly improve the performance of PVT systems.
研究了一系列硼二吡咯亚甲基（BODIPY）化合物，以评估它们作为混合光伏-热（PVT）系统工作液体成分的效能。研究了两个系列的BODIPY染料：系列I包括具有不同取代模式的烷基BODIPY，而系列II包括在β位具有富电子芳香基团（如萘、蒽和咔唑）的1,3,5,7-四甲基取代的BODIPY。设计系列II染料以表现出由于增强的紫外线吸收（300 - 400 nm）和激发态能量转移导致的发光降频，从而在紫外线激发下产生可见光区域的荧光。基于十氢化萘并含有每种单独BODIPY染料的PVT液体样品在标准非晶硅太阳能电池上进行测试，以评估它们对太阳能转换效率的影响。监测了光照循环期间工作液体和电池的热行为以及电池的电学特性。仔细研究了能量转换途径以及染料对系统性能的总体影响。结果表明，与单独的溶剂相比，所有BODIPY染料都提高了电转换效率（提高了2.41%）和热能产生（提高了6.87%）。这些发现突出了BODIPY染料显著提高PVT系统性能的潜力。
