Growth of Diamond Thin Film and Creation of NV Centers

Abstract

Nitrogen-vacancy (NV) center is one type of special defects in diamonds. NV center not only can be used as sensors for temperature, stress detection, magnetic field, etc., but also has potential applications for quantum computing due to its unique physical properties. Therefore, the growth of diamond and creation of NV centers are significant for the future technologies. In this chapter, some methods for growing diamond thin film are introduced first, including traditional high-pressure-high-temperature (HPHT) and chemical vapor deposition (CVD) methods. The second part will focus on the current commonly used approaches to create NV centers. Inter-growth and post-growth processes are mainly utilized for the creation of NV centers during and after the growth of thin film, respectively.

Recent Progress in Solar-Blind Photodetectors Based on Ultrawide Bandgap Semiconductors

“…Renown for its high carrier mobility, exceptional thermal conductivity, low thermal coefficient of expansion, an ultrawide bandgap, and chemical inertness, diamond boasts numerous applications at the forefront of technology, particularly in quantum sensing, solar-blind photodetection, DUV light-emitting diodes (LEDs), and power electronics . The diamond bulk crystals are commonly grown by high-pressure-high-temperature method (HPHT) while chemical vapor deposition (CVD) methods are typically utilized for the deposition of diamond thin films …”

“… 11 The diamond bulk crystals are commonly grown by high-pressure-high-temperature method (HPHT) while chemical vapor deposition (CVD) methods are typically utilized for the deposition of diamond thin films. 12 …”

Detecting Single Microwave Photons with NV Centers in Diamond

“…Nitrogen-vacancy (NV) centers are point defects in diamond crystal lattice, which occur when a nitrogen atom substitutes for a carbon atom and the neighboring site is left empty. They can be realized either during the crystal growth process by introducing nitrogen gas into the chamber or through post-growth methods, such as ion implantation and electron-beam irradiation [20]. There are two charge states of NV centers, neutral (NV 0 ) and negative (NV − ), where the latter exhibits unique spin-dependent photodynamics and will be referred to simply as the NV center in this paper.…”