TY - GEN
T1 - Growth and characterisation of InAs/GaAs quantum dots grown by MOCVD
AU - Sears, Kallista
AU - Wong-Leung, Jenny
AU - Buda, Manuela
AU - Tan, H. H.
AU - Jagadish, C.
PY - 2005
Y1 - 2005
N2 - InAs/GaAs quantum dots (QDs) were grown by low pressure Metal-Organic Chemical Vapour Deposition in the Stranski-Krastanow growth mode. We describe the influence of growth parameters such as coverage, the V/III ratio, growth temperature and growth interrupts on the QD nucleation and the importance of avoiding formation of larger islands which are particularly susceptible to dislocations. After an extensive study of these growth parameters we are now able to achieve device quality InAs/GaAs QDs with a density of 3×10 10cm-2. Three layers of these QDs have been incorporated into a thin p-clad laser structure which lases from an excited state due to high absorption loss and insufficient ground state gain.
AB - InAs/GaAs quantum dots (QDs) were grown by low pressure Metal-Organic Chemical Vapour Deposition in the Stranski-Krastanow growth mode. We describe the influence of growth parameters such as coverage, the V/III ratio, growth temperature and growth interrupts on the QD nucleation and the importance of avoiding formation of larger islands which are particularly susceptible to dislocations. After an extensive study of these growth parameters we are now able to achieve device quality InAs/GaAs QDs with a density of 3×10 10cm-2. Three layers of these QDs have been incorporated into a thin p-clad laser structure which lases from an excited state due to high absorption loss and insufficient ground state gain.
UR - http://www.scopus.com/inward/record.url?scp=46149087059&partnerID=8YFLogxK
U2 - 10.1109/COMMAD.2004.1577477
DO - 10.1109/COMMAD.2004.1577477
M3 - Conference contribution
SN - 0780388208
SN - 9780780388208
T3 - Conference on Optoelectronic and Microelectronic Materials and Devices, Proceedings, COMMAD
SP - 1
EP - 4
BT - COMMAD04 - 2004 Conference on Optoelectronic and Microelectronic Materials and Devices -Proceedings
T2 - COMMAD04 - 2004 Conference on Optoelectronic and Microelectronic Materials and Devices
Y2 - 8 December 2004 through 10 December 2004
ER -