In the present work luminescent metal–organic frameworks consisting of terbium ions as the metallic center and 1,4 benzene-dicarboxylic acid (BDC), benzene-tricarboxylic (BTC) acid and 1,3 thiophane-dicarboxylic acid (TDC), as the organic ligands, are synthesized by the microwave assisted solvothermal method at a relatively short time. The samples are studied before and after a thermal annealing process at 400°C. The structural and chemical analysis indicate the formation of nanocrystals of about 8.8 nm, 5.0 nm and 127 nm for BDC, BTC and TDC samples, respectively. All the samples show carbon and oxygen in excess attributed probably to remnants of the N,N-Dimetilformamide used as solvent during the synthesis or to diffused particles from the atmosphere. The luminescent analysis shows a high quantum yield value for the BDC framework, 99.6%, after the annealing process, attributed to an antenna effect; whereas both the BTC and TDC samples show a higher quantum yield before annealing; 64.1% and 13.3%, respectively. The luminescence decay time is also computed in the samples resulting between 1 and 1.5 ms for both BDC and BTC samples, whereas for the TDC sample the decay time was about 0.2 ms. A noticeable daylight visible PL emission is observed in all samples.

在目前的工作中，发光金属-有机骨架由ter离子作为金属中心，而1,4苯二甲酸（BDC），苯三羧酸（BTC）酸和1,3硫烷二羧酸（TDC）组成。通过微波辅助溶剂热法在相对较短的时间内合成了有机配体。在400°C的热退火过程之前和之后研究样品。结构和化学分析表明，分别对BDC，BTC和TDC样品形成了约8.8 nm，5.0 nm和127 nm的纳米晶体。所有样品均显示过量的碳和氧，这可能归因于在合成过程中用作溶剂的N，N-二甲基甲酰胺的残留物或从大气中扩散出来的颗粒。发光分析表明，BDC框架的量子产率很高，为99.6％，退火后，归因于天线效应；而BTC和TDC样品在退火前均显示出更高的量子产率。分别为64.1％和13.3％。对于BDC和BTC样本，还计算了样品的发光衰减时间，结果在1到1.5 ms之间，而对于TDC样本，发光时间约为0.2 ms。在所有样品中均观察到明显的日光可见PL发射。