Erbium Luminescence Centres in Single- and Nano-Crystalline Diamond—Effects of Ion Implantation Fluence and Thermal Annealing

Abstract

We present a fundamental study of the erbium luminescence centres in single- and nano-crystalline (NCD) diamonds. Both diamond forms were doped with Er using ion implantation with the energy of 190 keV at fluences up to 5 × 1015 ions·cm−2, followed by annealing at controllable temperature in Ar atmosphere or vacuum to enhance the near infrared photoluminescence. The Rutherford Backscattering Spectrometry showed that Er concentration maximum determined for NCD films is slightly shifted to the depth with respect to the Stopping and Range of Ions in Matter simulation. The number of the displaced atoms per depth slightly increased with the fluence, but in fact the maximum reached the fully disordered target even in the lowest ion fluence used. The post-implantation annealing at 800 °C in vacuum had a further beneficial effect on erbium luminescence intensity at around 1.5 μm, especially for the Er-doped NCD films, which contain a higher amount of grain boundaries than single-crystalline diamond.

Templated Synthesis of Diamond Nanopillar Arrays Using Porous Anodic Aluminium Oxide (AAO) Membranes

“…A dense and highly uniform NCD layer was obtained with a maximum grain size of about 100 nm. The Raman spectrum and its deconvolution results according to [54] are displayed in Figure 5c. A sharp and intense diamond peak is located at 1333.5 cm −1 , demonstrating good diamond quality.…”

Erbium ion implantation into LiNbO3, Al2O3, ZnO and diamond – measurement and modelling – an overview

“…The experimental research on Er-doped single-and nano-crystalline diamond was reported by our group in several publications. 60,95,99,100 4.4.1. Er-doped diamond -theoretical results.…”

Tailoring of Typical Color Centers in Diamond for Photonics

“…A number of other defects in diamond, such nickel‐related color center, [ 186–190 ] chromium‐related centers, [ 30,190 ] and rear‐earth elements [ 191 ] were also considered as candidates for single‐photonic emitters and for photonics in general. From this variety we will touch here only luminescent properties of GeV centers and rear‐earths in diamond.…”