[21p-H121-1~17] 15.4 III-V-group nitride crystals

△ [21p-H121-9] Enhanced radiative recombination processes in AlGaN quantum wires fabricated on sapphire (0001) vicinal substrates

〇Minehiro Hayakawa¹, Yuki Hayashi¹, Shuhei Ichikawa¹, Mitsuru Funato¹, Yoichi Kawakami¹ (1.Kyoto Univ.)

Keywords:AlGaN,Quantum wire,radiative recombination

We demonstrated by PL measurement that the thermal quenching of AlGaN quantum wires are much weaker than that of conventional quantum wells. This result strongly suggests that prolonging of radiative lifetime at higher temperature is remarkably suppressed, which is a specific property of quantum wire.