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Report No.

Single-photon emitting diode in silicon carbide

Lohrmann, A.*; Iwamoto, Naoya*; Bodrog, Z.*; Castelletto, S.*; Oshima, Takeshi; Karle, T. J.*; Gali, A.*; Prawer, S.*; McCallum, J. C.*; Johnson, B. C.*

A new single photon source (SPS) was found in hexagonal silicon carbide (SiC), and the luminescence from the SPS could be controlled by the operation of the pn diode. The SPS showed electro-luminescence (EL) with spectra between 700 and 850 nm (zero phonon line: 745 nm) and the EL could be easily observed at even room temperature (RT). Also, the SPS has very high thermal stability and can be observed even after 1800 $$^{circ}$$C annealing. The luminescence from the SPS was also observed by photo-luminescence measurements at RT. From Ab initio calculation, it was proposed that the silicon antisite defects beneath cubic SiC inclusion are a reasonable structure for the SPS although the identification of the SPS has not yet done.



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Category:Multidisciplinary Sciences



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