天朝币市看跌# Collectibles - 收藏
q*r
1 楼
We are seeking highly motivated individuals for two to three postdoc
positions available immediately in the research areas of i) fabrication and
testing for high- efficiency multi-junction solar cells, ii) device
processing for Si solar cells (or related Si devices), and iii) modeling,
growth, characterization for self- organized 3D quantum dots and 2D
heterostructures such as type-II superlattice. Applicants should have strong
background in one of the areas mentioned above. Application should be sent
directly to Rebecca Davis (r***********[email protected]).
Prof. Yong-Hang Zhang’s research group has an newly upgraded dual-chamber
MBE system equipped with Ga, Al, In, As, Sb, Bi, and P source cells and with
Si, Te, and Be doping cells on one chamber, while the other chamber has new
effusion cells (Cd, Zn, Be, and Mg), valved cells (Se and Te), and doping/
surfactant cells (Al, In, Ga, P, and Bi.). This dual-chamber system will
enable the MBE growth of (MgBeCdZn)(SeTe) and (AlGaIn)(PAsSbBi) materials
and devices with excellent control of the compositions for ternary/
quaternary alloys and various doping concentrations. The group has excellent
optical spectroscopic setups. The PL systems can cover the wavelength range
from 350 nm to 12 um for temperatures between 10K and 350K. A FTIR
spectrometer covers a wavelength range from UV to 25 um. The group also has
full access to many material characterization tools such as XRD, SEM/EDS,
AFM, and high resolution TEM. Prof. Zhang’s group also has a complete solar
cell spectral quantum efficiency system, a calibrated silicon solar cell, a
Class A 4”x4” beam solar simulator, and a smaller solar simulator. The
quantum efficiency test setup is equipped with bias lamps and LEDs to allow
multi- junction solar cell testing in a cryostat (10-400K) for temperature
dependent QE and I-V measurements. A probe station with TE cooling is
available for IV testing under the large Class A solar simulator. In
addition, the group has full access to a state-of-the-art 4000 ft2 in-house
Class-100 cleanroom facility. This facility has all the necessary tools to
fabricate optoelectronic and electronic devices.
positions available immediately in the research areas of i) fabrication and
testing for high- efficiency multi-junction solar cells, ii) device
processing for Si solar cells (or related Si devices), and iii) modeling,
growth, characterization for self- organized 3D quantum dots and 2D
heterostructures such as type-II superlattice. Applicants should have strong
background in one of the areas mentioned above. Application should be sent
directly to Rebecca Davis (r***********[email protected]).
Prof. Yong-Hang Zhang’s research group has an newly upgraded dual-chamber
MBE system equipped with Ga, Al, In, As, Sb, Bi, and P source cells and with
Si, Te, and Be doping cells on one chamber, while the other chamber has new
effusion cells (Cd, Zn, Be, and Mg), valved cells (Se and Te), and doping/
surfactant cells (Al, In, Ga, P, and Bi.). This dual-chamber system will
enable the MBE growth of (MgBeCdZn)(SeTe) and (AlGaIn)(PAsSbBi) materials
and devices with excellent control of the compositions for ternary/
quaternary alloys and various doping concentrations. The group has excellent
optical spectroscopic setups. The PL systems can cover the wavelength range
from 350 nm to 12 um for temperatures between 10K and 350K. A FTIR
spectrometer covers a wavelength range from UV to 25 um. The group also has
full access to many material characterization tools such as XRD, SEM/EDS,
AFM, and high resolution TEM. Prof. Zhang’s group also has a complete solar
cell spectral quantum efficiency system, a calibrated silicon solar cell, a
Class A 4”x4” beam solar simulator, and a smaller solar simulator. The
quantum efficiency test setup is equipped with bias lamps and LEDs to allow
multi- junction solar cell testing in a cryostat (10-400K) for temperature
dependent QE and I-V measurements. A probe station with TE cooling is
available for IV testing under the large Class A solar simulator. In
addition, the group has full access to a state-of-the-art 4000 ft2 in-house
Class-100 cleanroom facility. This facility has all the necessary tools to
fabricate optoelectronic and electronic devices.
