Band alignment engineering of p-Ge/n-Si heterojunction for low cost tandem solar cell applications

H Waheed, K Javaid, A Ali, K Mahmood, MI Arshad… - Optical Materials, 2024 - Elsevier
The current research work deals with synthesis and optimization of polycrystalline
germanium thin films to develop Ge/Si heterojunction with appropriate band alignment for …

In situ low temperature growth of poly-crystalline germanium thin film on glass by RF magnetron sputtering

CY Tsao, JW Weber, P Campbell, G Conibeer… - Solar energy materials …, 2010 - Elsevier
Structural and optical properties of germanium thin films deposited on silicon nitride coated
glass are investigated with the aim to develop a material for the bottom cells of low cost …

In situ growth of Ge-rich poly-SiGe: H thin films on glass by RF magnetron sputtering for photovoltaic applications

CY Tsao, Z Liu, X Hao, MA Green - Applied Surface Science, 2011 - Elsevier
Hydrogenated polycrystalline SixGe1− x films, with a varying silicon fraction x≤ 0.246, were
in situ deposited in an argon and hydrogen mixture at 500° C using radio frequency …

Influence of hydrogen on structural and optical properties of low temperature polycrystalline Ge films deposited by RF magnetron sputtering

CY Tsao, P Campbell, D Song, MA Green - Journal of crystal growth, 2010 - Elsevier
To improve the properties of polycrystalline Ge thin films, which are a candidate material for
the bottom cells of low cost monolithic tandem solar cells,∼ 300nm in situ hydrogenated Ge …

XPS study of annealing induced effects on surface and interface electronic properties of Si/Ge nanostructures

S Tripathi, A Sharma, T Shripathi - Applied surface science, 2009 - Elsevier
The present study is focused on the influence of vacuum thermal treatment on
surface/interface electronic properties of Si/Ge multilayer structures (MLS) characterized …

Thickness dependent structural, electronic, and optical properties of Ge nanostructures

S Tripathi, R Brajpuriya, A Sharma… - … of Nanoscience and …, 2008 - ingentaconnect.com
In the present paper, we have investigated structural, optical as well as electronic properties
of electron beam evaporated Ge thin films having layer thicknesses ranging from ultra-thin (5 …

Effect of spacer layer thickness on optical properties of [SnO2/Mn] n and [SnO2/Co] n discontinuous multilayers

S Saipriya, R Singh - Materials Letters, 2012 - Elsevier
Multilayers (ML) of [SnO2/Mn] n and [SnO2/Co] n were fabricated by rf sputtering. The effect
of spacer layer (SnO2) thickness, x on the optical properties of these ML was studied. The …

Effect of composition modulation on the structural and optical properties of Si/Ge bilayers

S Tripathi, A Sharma, SM Chaudhari… - Solid state …, 2009 - Elsevier
We report structural as well as optical studies on Si/Ge bilayer structures having different
individual layer thicknesses. The Raman spectrum of [Ge (5 nm)/Si (5 nm)] bilayer structure …

Optical band gap tuning of discontinuous [SnO2/Mn] n multilayers

S Saipriya, R Singh - Journal of alloys and compounds, 2011 - Elsevier
Multilayers (ML) of [SnO2/Mn] n were deposited by RF-magnetron sputtering on quartz
substrates at room temperature using metal targets. The XRD pattern and the XRR show …

Energy and angle dependent photoemission study on Si/Ge multilayers using synchrotron radiation

S Tripathi, A Sharma, T Shripathi - Vacuum, 2013 - Elsevier
The present report adds to the ongoing research on Si/Ge nanostructures by discussing the
results obtained utilizing unique features of Synchrotron radiation (SR). Based on the …