Room temperature 1.54 μm light emission of erbium doped Si Schottky diodes prepared by molecular beam epitaxy

1997 ◽  
Vol 71 (8) ◽  
pp. 1023-1025 ◽  
Author(s):  
Chun-Xia Du ◽  
Wei-Xin Ni ◽  
Kenneth B. Joelsson ◽  
Göran V. Hansson
Keyword(s):  
Molecular Beam Epitaxy ◽  
Room Temperature ◽  
Molecular Beam ◽  
Light Emission ◽  
Schottky Diodes ◽  
Erbium Doped

1.54 μm room‐temperature electroluminescence of erbium‐doped GaAs and GaAlAs grown by molecular beam epitaxy

1989 ◽  
Vol 55 (20) ◽  
pp. 2105-2107 ◽  
Author(s):  
P. Galtier ◽  
J. P. Pocholle ◽  
M. N. Charasse ◽  
B. de Cremoux ◽  
J. P. Hirtz ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Room Temperature ◽  
Molecular Beam ◽  
Erbium Doped

Erbium Doped Si/Sige Waveguide Diodes: Optical And Electrical Characterization

1998 ◽  
Vol 533 ◽  
Author(s):  
E. Neufeld ◽  
A. Luigart ◽  
A. Sticht ◽  
K. Brunner ◽  
G. Abstreiter
Keyword(s):  
Molecular Beam Epitaxy ◽  
Temperature Dependence ◽  
Room Temperature ◽  
Molecular Beam ◽  
Electrical Characterization ◽  
Confocal Microscope ◽  
Additional Annealing ◽  
Erbium Doped ◽  
Luminescence Characteristics ◽  
Narrow Emission

AbstractWe have fabricated erbium- and oxygen-doped Si/SiGe waveguide diodes showing the characteristic 1.54 µm electroluminescence (EL) from incorporated Er+3, ions. All samples were grown by molecular beam epitaxy (MBE). The EL from the polished end facet of the waveguide was measured with a confocal microscope revealing a spatially narrow emission. Additional annealing was not necessary to improve the luminescence characteristics. Only a weak temperature dependence is found for the EL intensity between 4K and room temperature.

Room-temperature ferromagnetism in (Mn, N)-codoped TiO2 films grown by plasma assisted molecular beam epitaxy

2008 ◽  
Vol 104 (9) ◽  
pp. 093914 ◽  
Author(s):  
X. Y. Li ◽  
S. X. Wu ◽  
L. M. Xu ◽  
Y. J. Liu ◽  
X. J. Xing ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Room Temperature ◽  
Molecular Beam ◽  
Room Temperature Ferromagnetism ◽  
Tio2 Films ◽  
Codoped Tio2

Increased effective barrier heights in Schottky diodes by molecular‐beam epitaxy of CoSi2and Ga‐doped Si on Si(111)

1988 ◽  
Vol 64 (8) ◽  
pp. 4082-4085 ◽  
Author(s):  
R. W. Fathauer ◽  
T. L. Lin ◽  
P. J. Grunthaner ◽  
P. O. Andersson ◽  
J. M. Iannelli ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Schottky Diodes ◽  
Barrier Heights ◽  
Effective Barrier

Room-Temperature Wafer Bonded Multi-Junction Solar Cell Grown by Solid State Molecular Beam Epitaxy

MRS Advances ◽  
2016 ◽  
Vol 1 (43) ◽  
pp. 2907-2916 ◽  
Author(s):  
Shulong Lu ◽  
Shiro Uchida
Keyword(s):  
Solar Cell ◽  
Molecular Beam Epitaxy ◽  
Wafer Bonding ◽  
Room Temperature ◽  
Molecular Beam ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Device Structure ◽  
Junction Solar Cell

ABSTRACTWe studied the InGaP/GaAs//InGaAsP/InGaAs four-junction solar cells grown by molecular beam epitaxy (MBE), which were fabricated by the novel wafer bonding. In order to reach a higher conversion efficiency at highly concentrated illumination, heat generation should be minimized. We have improved the device structure to reduce the thermal and electrical resistances. Especially, the bond resistance was reduced to be the lowest value of 2.5 × 10-5 Ohm cm2 ever reported for a GaAs/InP wafer bond, which was obtained by the specific combination of p+-GaAs/n-InP bonding and by using room-temperature wafer bonding. Furthermore, in order to increase the short circuit current density (Jsc) of 4-junction solar cell, we have developed the quality of InGaAsP material by increasing the growth temperature from 490 °C to 510 °C, which leads to a current matching. In a result, an efficiency of 42 % at 230 suns of the four-junction solar cell fabricated by room-temperature wafer bonding was achieved.

Comparison of the Optical Properties of Er3+ Doped Gallium Nitride Prepared by Metalorganic Molecular Beam Epitaxy (MOMBE) and Solid Source Molecular Beam Epitaxy (SSMBE)

1999 ◽  
Vol 595 ◽  
Author(s):  
U. Hömmerich ◽  
J. T. Seo ◽  
J. D. MacKenzie ◽  
C. R. Abernathy ◽  
R. Birkhahn ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Excited States ◽  
Room Temperature ◽  
Molecular Beam ◽  
Average Lifetime ◽  
Green Luminescence ◽  
Si Substrates ◽  
Lifetime Analysis ◽  
Metalorganic Molecular Beam Epitaxy ◽  
Er Doped

AbstractWe report on the luminescence properties of Er doped GaN grown prepared by metalorganic molecular beam epitaxy (MOMBE) and solid-source molecular beam epitaxy (SSMBE) on Si substrates. Both types of samples emitted characteristic 1.54 µm PL resulting from the intra-4f Er3+ transition 4I13/2→4I15/2. Under below-gap excitation the samples exhibited very similar 1.54 µm PL intensities. On the contrary, under above-gap excitation GaN: Er (SSMBE) showed ∼80 times more intense 1.54 µm PL than GaN: Er (MOMBE). In addition, GaN: Er (SSMBE) also emitted intense green luminescence at 537 nm and 558 nm, which was not observed from GaN: Er (MOMBE). The average lifetime of the green PL was determined to be 10.8 µs at 15 K and 5.5 µs at room temperature. A preliminary lifetime analysis suggests that the decrease in lifetime is mainly due to the strong thermalization between the 2H11/2 and 4S3/2 excited states. Nonradiative decay processes are expected to only weakly affect the green luminescence.

scholarly journals Aluminum nitride doped with transition metal group atoms as a material for spintronics

2020 ◽  
pp. 162-172
Author(s):  
S.S. Khludkov ◽  
◽  
I.A. Prudaev ◽  
L.O. Root ◽  
O.P. Tolbanov ◽  
...  
Keyword(s):  
Experimental Data ◽  
Magnetic Properties ◽  
Molecular Beam Epitaxy ◽  
Transition Metal ◽  
Aluminum Nitride ◽  
Room Temperature ◽  
Molecular Beam ◽  
Scientific Literature ◽  
Material Growth ◽  
Metal Group

Aluminum nitride doped with transition metal group atoms as a material for spintronics The overview of scientific literature on electric and magnetic properties of AlN doped with transition metal group atoms is presented. The review is based on literature sources published mainly in the last 10 years. The doping was carried out by different methods: during the material growth (molecular beam epitaxy, magnetron sputtering, discharge techniques) or by implantation into the material. The presented theoretical and experimental data show that AlN doped with transition metal group atoms has ferromagnetic properties at temperatures above room temperature and it is a promising material for spintronics.

scholarly journals Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy

10.3791/58113 ◽  
2018 ◽  
Author(s):  
Kai Ding ◽  
Vitaliy Avrutin ◽  
Natalia Izioumskaia ◽  
Md Barkat Ullah ◽  
Ümit Özgür ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Schottky Diodes
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