Westerhausen Mika T, Trycz Aleksandra T, Stewart Connor, Nonahal Milad, Regan Blake, Kianinia Mehran, Aharonovich Igor
School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, New South Wales 2007, Australia.
ACS Appl Mater Interfaces. 2020 Jul 1;12(26):29700-29705. doi: 10.1021/acsami.0c07242. Epub 2020 Jun 16.
Group IV color centers in diamond (Si, Ge, Sn, and Pb) have recently emerged as promising candidates for realization of scalable quantum photonics. However, their synthesis in nanoscale diamond is still in its infancy. In this work we demonstrate controlled synthesis of selected group IV defects (Ge and Sn) into nanodiamonds and nanoscale single crystal diamond membranes by microwave plasma chemical vapor deposition. We take advantage of inorganic salts to prepare the chemical precursors that contain the required ions that are then incorporated into the growing diamond. Photoluminescence measurements confirm that the selected group IV emitters are present in the diamond without degrading its structural quality. Our results are important to expand the versatile synthesis of color centers in diamond.
金刚石中的IV族色心（硅、锗、锡和铅）最近已成为实现可扩展量子光子学的有前途的候选者。然而，它们在纳米级金刚石中的合成仍处于起步阶段。在这项工作中，我们展示了通过微波等离子体化学气相沉积法将选定的IV族缺陷（锗和锡）可控地合成到纳米金刚石和纳米级单晶金刚石膜中。我们利用无机盐制备含有所需离子的化学前驱体，然后将这些离子掺入生长的金刚石中。光致发光测量证实，选定的IV族发射体存在于金刚石中，而不会降低其结构质量。我们的结果对于扩展金刚石中色心的通用合成具有重要意义。
