Formation of bound excitons by photoexcited carriers in {ital p}-type GaAs revealed by picosecond luminescence spectroscopy
Journal Article
·
· Physical Review, B: Condensed Matter
- Tata Institute of Fundamental Research, Bombay 400005 (India)
- Scuola Normale Superiore and Istituto Nazionale per la Fisica della Materia, I-56126 Pisa (Italy)
We report on the time evolution of photoluminescence (PL) spectra in molecular-beam-epitaxy grown {ital p}-type GaAs ({ital p}=5{times}10{sup 16} cm{sup {minus}3}), following electron-hole pair excitation by picosecond laser pulses at densities of about 6{times}10{sup 16} cm{sup {minus}3}. We perform both upconversion (UC) and photoexcitation-correlation (PEC) PL measurements for delays up to 1 ns. The UC and PEC PL results imply significant formation of bound excitons by electron-hole pairs in less than 1 ns. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 404055
- Journal Information:
- Physical Review, B: Condensed Matter, Vol. 54, Issue 24; Other Information: PBD: Dec 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Response of excitonic absorption spectra to photoexcited carriers in GaAs quantum wells
Minority carrier lifetimes in molecular beam epitaxy grown Al[sub [ital x]]Ga[sub 1[minus][ital x]]As/GaAs double heterostructures doped with aluminum
Nonequilibrium Lattice Dynamics in Photoexcited 2D Perovskites
Journal Article
·
Sun Nov 15 00:00:00 EST 1992
· Physical Review, B: Condensed Matter; (United States)
·
OSTI ID:404055
+1 more
Minority carrier lifetimes in molecular beam epitaxy grown Al[sub [ital x]]Ga[sub 1[minus][ital x]]As/GaAs double heterostructures doped with aluminum
Journal Article
·
Thu Jul 01 00:00:00 EDT 1993
· Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States)
·
OSTI ID:404055
+1 more
Nonequilibrium Lattice Dynamics in Photoexcited 2D Perovskites
Journal Article
·
Mon Oct 03 00:00:00 EDT 2022
· Advanced Materials
·
OSTI ID:404055
+13 more