A comparative study of p-type diamond films using Raman and transport measurements

Temperature sensors based on synthetic diamond films

“…The samples which results were displayed in this figure were grown at the same conditions but at different doping levels. As already observed in the literature [6][7][8], one of the effects of Boron addition is promoting a decrease of the sp 2 bonding band as seen in the higher doped sample (Fig. 1).…”

“…[6]), the samples were characterized by Raman spectroscopy in order to confirm the formation of the diamond films. A sharp diamond peak at 1332 cm − 1 with little non-sp 3 background was observed in the Raman spectra of both samples as shown in Fig.…”

“…In a recent paper [6] we have shown a comparative study (using Raman spectroscopy) of CVD diamond films searching for growth parameters that could result in high quality doped films. The films thus grown are now used to study some transport properties and the results were applied to the development of a simple device which in turn, was used as a temperature sensor.…”

The synthesis of diamond films on adamantane-coated Si substrate at low temperature

“…The exceptional physical and chemical properties of diamond such as wide band gap, chemical inertness, high carrier mobility, excellent biological compatibility, high propagation speed of acoustic wave, good optical transparency, high thermal conductivity and the greatest hardness that make its use advantageous in a wide range of applications [5][6][7]. Several methods have been proposed for the synthesis of high crystalline diamond films by microwave plasma chemical vapor deposition (MPCVD) at high temperature and pressure [7][8][9][10][11][12][13]. However, to make commercially viable further investigations are still required in terms of yield, quality and uniformity of diamond.…”

Selected topics related to the transport and superconductivity in boron-doped diamond

“…Boron doped diamond (BDD), prepared either by high pressure high temperature technique (HPHT) [1,2], by plasma enhanced chemical vapour deposition (PECVD) [3][4][5] or by hot filament assisted CVD [6,7], is a unique material which provides the playground for various quantum transport phenomena, such as hopping, weak localization, ballistic transport, unconventional superconductivity and Josephson's effects [8][9][10][11][12]. The growth techniques mentioned above provide boron-doped diamond samples not essentially differing from one another.…”