TY - JOUR
T1 - New method to isolate and distribute photoluminescence emissions from InAs quantum dots over a wide-wavelength range
AU - Ohkouchi, S.
AU - Kumagai, N.
AU - Shirane, M.
AU - Igarashi, Y.
AU - Nomura, M.
AU - Ota, Y.
AU - Yorozu, S.
AU - Iwamoto, S.
AU - Arakawa, Y.
PY - 2011/5/15
Y1 - 2011/5/15
N2 - We propose a new method to isolate and distribute the photoluminescence emission wavelengths of InAs quantum dots (QDs) over a wide-wavelength range by the growth of the partial GaAs capping layer at low temperature and annealing processes. When the partial capping layer was grown at 485°C, the emission wavelengths of the QDs were distributed within a small range around the mean wavelength. On the other hand, when the partial capping layer was grown at a lower temperature of 423°C, the emission wavelengths of the individual QDs were isolated and distributed over a wide range. Thus fabricated QDs are effective for the QD based devices such as single photon sources.
AB - We propose a new method to isolate and distribute the photoluminescence emission wavelengths of InAs quantum dots (QDs) over a wide-wavelength range by the growth of the partial GaAs capping layer at low temperature and annealing processes. When the partial capping layer was grown at 485°C, the emission wavelengths of the QDs were distributed within a small range around the mean wavelength. On the other hand, when the partial capping layer was grown at a lower temperature of 423°C, the emission wavelengths of the individual QDs were isolated and distributed over a wide range. Thus fabricated QDs are effective for the QD based devices such as single photon sources.
KW - GaAs
KW - InAs
KW - Molecular beam epitaxy
KW - Nanostructures
KW - Quantum dot
UR - http://www.scopus.com/inward/record.url?scp=79957976132&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79957976132&partnerID=8YFLogxK
U2 - 10.1016/j.jcrysgro.2010.12.026
DO - 10.1016/j.jcrysgro.2010.12.026
M3 - Article
AN - SCOPUS:79957976132
VL - 323
SP - 250
EP - 253
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
SN - 0022-0248
IS - 1
ER -