High mobility hydrogenated and oxygenated microcrystalline silicon as a photosensitive material in photovoltaic applications

1992 ◽  
Vol 60 (26) ◽  
pp. 3289-3291 ◽  
Author(s):  
M. Faraji ◽  
Sunil Gokhale ◽  
S. M. Choudhari ◽  
M. G. Takwale ◽  
S. V. Ghaisas
Keyword(s):  
High Mobility ◽  
Microcrystalline Silicon ◽  
Photosensitive Material ◽  
Photovoltaic Applications

A new 2D high-pressure phase of PdSe2 with high-mobility transport anisotropy for photovoltaic applications

2019 ◽  
Vol 7 (7) ◽  
pp. 2096-2105 ◽  
Author(s):  
Wen Lei ◽  
Shengli Zhang ◽  
Gunter Heymann ◽  
Xin Tang ◽  
Jianfeng Wen ◽  
...  
Keyword(s):  
High Pressure ◽  
High Mobility ◽  
Layered Structures ◽  
High Pressure Phase ◽  
Photovoltaic Applications ◽  
Pressure Phase

High-pressure is utilized to realize new 2D layered structures in PdSe2 with high-mobility transport anisotropy for photovoltaic applications.

Numerical Simulations for the Efficiency Improvement of Hybrid Dye-microcrystalline Silicon pin-solar cells

2011 ◽  
Vol 1322 ◽  
Author(s):  
Sven Burdorf ◽  
Gottfried H. Bauer ◽  
Rudolf Brüggemann
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Efficiency Improvement ◽  
Microcrystalline Silicon ◽  
Photovoltaic Applications ◽  
The Matrix ◽  
High Absorption Coefficient ◽  
Induced Defects ◽  
Defect Densities ◽  
High Absorption

ABSTRACTIn hybrid solar cells consisting of dye sensitizers incorporated in the i-layer of a microcrystalline silicon (μc-Si:H) pin solar cell the dye sensitizer molecules are embedded in the matrix and enhance the overall absorption of the dye-matrix system due to their high absorption coefficient in the spectral range interesting for photovoltaic applications. This contribution investigates the efficiency improvement of hybrid dye-μc-Si:H solar cells compared to pure μc-Si:H solar cells by simulation. The results indicate that, under optimum conditions, the efficiency can be improved by more than a factor of 1.2 compared to a pure μc-Si:H cell. The thickness reduction for the hybrid system can be as large as 50 % for the same efficiency. However, the efficiency improvement also depends on the amount of additionally induced defects in the matrix by the embedded dye molecules. Therefore, the simulations investigate the performance of the hybrid solar cell for different absorption enhancements and defect densities.

scholarly journals A High-Mobility Low-Bandgap Poly(2,7-carbazole) Derivative for Photovoltaic Applications

2009 ◽  
Vol 42 (8) ◽  
pp. 2891-2894 ◽  
Author(s):  
Yingping Zou ◽  
David Gendron ◽  
Réda Badrou-Aïch ◽  
Ahmed Najari ◽  
Ye Tao ◽  
...  
Keyword(s):  
High Mobility ◽  
Carbazole Derivative ◽  
Low Bandgap ◽  
Photovoltaic Applications

Influence of the Structural Properties of Microcrystalline Silicon on the Performance of High Mobility Thin-Film Transistors

2008 ◽  
Vol 1066 ◽  
Author(s):  
Kah Yoong Chan ◽  
Dietmar Knipp ◽  
Reinhard Carius ◽  
Helmut Stiebig
Keyword(s):  
Thin Film ◽  
Charge Carrier ◽  
Thin Film Transistors ◽  
Carrier Mobility ◽  
Volume Fraction ◽  
High Mobility ◽  
Charge Carrier Mobility ◽  
Electron Charge ◽  
Crystalline Volume Fraction ◽  
Microcrystalline Silicon

ABSTRACTThe influence of the crystalline volume fraction of hydrogenated microcrystalline silicon (mc-Si:H) on the performance of thin-film transistors (TFTs) processed at temperatures below 180 °C was investigated. TFTs employing mc-Si:H channel material prepared near the transition to amorphous growth exhibit the highest electron charge carrier mobilities exceeding 50 cm2/Vs. The influence of the crystalline volume fraction of the intrinsic mc-Si:H material on the transistor parameters like the charge carrier mobility and the contact resistance will be discussed.

ZnO:Al with tuned properties for photovoltaic applications: thin layers and high mobility material

2013 ◽  
Author(s):  
Florian Ruske ◽  
Robert Rößler ◽  
Mark Wimmer ◽  
Steffi Schönau ◽  
Stefan Kämpfer ◽  
...  
Keyword(s):  
High Mobility ◽  
Thin Layers ◽  
Photovoltaic Applications

Bandgap engineered high mobility indium oxide thin films for photovoltaic applications

2011 ◽  
Vol 1315 ◽  
Author(s):  
R.K. Gupta ◽  
K. Ghosh ◽  
P.K. Kahol
Keyword(s):  
Thin Films ◽  
Electrical Resistivity ◽  
Electrical Properties ◽  
Carrier Concentration ◽  
Indium Oxide ◽  
Growth Temperature ◽  
High Mobility ◽  
Optical Transparency ◽  
Metallic Behavior ◽  
Photovoltaic Applications

ABSTRACTMagnesium and titanium doped indium oxide (IMTO) thin films were grown using pulsed laser deposition technique. Magnesium was added to enhance the bandgap, whereas titanium was added to improve carrier concentrations and mobility of indium oxide films. The effect of growth temperature on structural, optical, and electrical properties were studied. It was observed that the optical transparency of the films strongly depends on growth temperature and increases with increase in growth temperature. The films grown at 600 °C showed optical transparency > 85%. We observed widening in bandgap of indium oxide by doping with magnesium and titanium. The bandgap of IMTO films increases with increase in growth temperature. The maximum bandgap of 3.9 eV was observed for film grown at 600 °C. It was observed that growth temperature strongly affects the electrical properties such as resistivity, carrier concentration, and mobility. The electrical resistivity and mobility of the films increases with increase in growth temperature. On the other hand, carrier concentration decreases with increase in growth temperature. Temperature dependence electrical resistivity measurements showed that films grown at low temperatures are semiconducting in nature, while films grown at high temperature showed transition from semiconducting to metallic behavior. These wide bandgap, highly transparent, and high mobility films could be used for photovoltaic applications.

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