[16a-A25-1~16] 16.1 Fundamental properties, evaluation, process and devices in disordered materials

[16a-A25-4] Ultraviolet/visible emission from deep level defects in boron nitride

〇Emi Tsushima¹, Takashi Uchino¹ (1.Kobe Univ.)

Keywords:boron nitride

We investigate the deep-level photoluminescence (PL) properties of boron nitride (BN) particles with different crystalline structures. We found that the PL peak wavelength of turbostratic BN is located at longer wavelength regions than that of hexagonal BN, indicating that the energy levels of the deep-level emission centers depend on the surrounding crystalline matrix. We will also show the temperature dependent PL spectra along with the PL decay profiles for these BN samples.