Time-resolved spectroscopy of biexciton luminescence in wide-bandgap II-VI quantum wells

✍ Scribed by Yoichi Yamada; Tomobumi Mishina; Yasuaki Masumoto; Yoichi Kawakami; Shigeo Yamaguchi; Kunio Ichino; Shizuo Fujita; Shigeo Fujita; Tsunemasa Tagucbi

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 174 KB
• Volume: 15
• Category: Article
• ISSN: 0749-6036
• DOI: 10.1006/spmi.1994.1007

✦ Synopsis

The temporal behaviour of biexcitons in (\mathrm{ZnCdSe}-\mathrm{ZnSSe}) multiple quantum wells has been studied by means of time-resolved luminescence spectroscopy. It is shown that the biexciton luminescence decays double-exponentially under high-density excitation. This can be explained by considering that the decay-time constant of the faster-decay component in the double-exponential decay corresponds to the radiative lifetime of biexcitons, and that the slower-decay component reflects a recurring process between excitons and biexcitons.