The set of four ternary coordination compounds of terbium were prepared with diketone 1,1,1-trifluoro-5,5-dimethyl-2,4-hexanedione (TFDH) and four different neutral ligands (L) having formula [Tb(TFDH)L]. Resulting compounds were characterized using different techniques including NUV absorption studies, photoluminescence (PL) spectroscopy, electrochemical and thermal analyses. PL spectra confirmed the green luminescence of synthesized complexes by exhibiting characteristic dominant D → F peak around 545 nm. Electronic and optical energy gap values lying at ∼3.5 eV reveals their potential to use in semiconductor materials. All the spectral results are in good agreement with each other and highlight their utility in lighting, biomedical imaging and sensors etc.

中文翻译：

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铽三-1,1,1-三氟-5,5-二甲基-2,4-己二酮配合物的光致发光调谐：合成、光谱、热和电化学分析

铽的四种三元配位化合物是用二酮 1,1,1-三氟-5,5-二甲基-2,4-己二酮 (TFDH) 和四种不同的中性配体 (L) 制备的，其结构式为 [Tb(TFDH) L]。使用不同的技术对所得化合物进行了表征，包括 NUV 吸收研究、光致发光 (PL) 光谱、电化学和热分析。 PL 光谱通过在 545 nm 附近显示特征主 D → F 峰证实了合成复合物的绿色发光。电子和光学能隙值约为 3.5 eV，揭示了它们在半导体材料中的应用潜力。所有光谱结果彼此吻合，突出了它们在照明、生物医学成像和传感器等方面的实用性。