Günther Axel, Deja Yves, Kilic Maximilian, Tran Kevin, Kotra Pavan, Renz Franz, Kowalsky Wolfgang, Roth Bernhard
Hannover Centre for Optical Technologies, Leibniz University of Hannover, 30167, Hannover, Germany.
Institute of High Frequency Technology, Technical University Braunschweig, 38106, Braunschweig, Germany.
Sci Rep. 2024 Mar 11;14(1):5897. doi: 10.1038/s41598-024-56427-1.
With the advent of the first laser sources and suitable detectors, optical sensor applications immediately also came into focus. During the last decades, a huge variety of optical sensor concepts were developed, yet the forecast for the future application potential appears even larger. In this context, the development of new sensor probes at different scales down to the atomic or molecular level open new avenues for research and development. We investigated an iron based triazole molecular spin-crossover complex changing its absorption characteristics significantly by varying environmental parameters such as humidity, temperature, magnetic or electric field, respectively, with respect to its suitability for a new class of versatile molecular sensor probes. Hereby, besides the investigation of synthesized pure bulk material using different analyzing methods, we also studied amorphous micro particles which were applied in or onto optical waveguide structures. We found that significant changes of the reflection spectra can also be obtained after combining the particles with different types of optical waveguides.The obtained results demonstrate the suitability of the material complex for a broad field of future sensor applications.
随着首批激光源和合适探测器的出现，光学传感器应用立刻也成为了焦点。在过去几十年里，人们开发出了各种各样的光学传感器概念，然而未来的应用潜力预测似乎更大。在这种背景下，开发不同尺度直至原子或分子水平的新型传感器探头为研发开辟了新途径。我们研究了一种基于铁的三唑分子自旋交叉配合物，该配合物会根据湿度、温度、磁场或电场等环境参数的变化而显著改变其吸收特性，以探究其作为新型多功能分子传感器探头的适用性。在此过程中，除了使用不同分析方法对合成的纯块状材料进行研究外，我们还研究了应用于光波导结构内部或表面的非晶态微粒。我们发现，将这些微粒与不同类型的光波导相结合后，反射光谱也会发生显著变化。所获得的结果表明该材料配合物适用于未来广泛的传感器应用领域。
