Temperature‐dependent current–voltage and admittance spectroscopy analysis on cesium‐treated Cu (In 1 − x ,Ga x )Se 2 solar cell before and after heat‐light soaking and subsequent heat‐soaking treatments

2020 ◽  
Vol 28 (11) ◽  
pp. 1158-1166
Author(s):  
Ishwor Khatri ◽  
Tzu‐Ying Lin ◽  
Takahiko Yashiro ◽  
Mutsumi Sugiyama
Keyword(s):  
Solar Cell ◽  
Admittance Spectroscopy ◽  
Temperature Dependent ◽  
Spectroscopy Analysis ◽  
Current Voltage ◽  
Before And After

Enhanced response in InAs quantum dots in an InGaAs quantum well solar cells by anti-reflection coatings

2013 ◽  
Vol 1551 ◽  
pp. 155-161
Author(s):  
Y. F. Makableh ◽  
R. Vasan ◽  
J. C. Sarker ◽  
S. Lee ◽  
M. A. Khan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solar Cell ◽  
Quantum Well ◽  
Spectral Response ◽  
Sol Gel ◽  
Absorption Enhancement ◽  
Inas Quantum Dots ◽  
Current Voltage ◽  
Before And After

ABSTRACTA study on light absorption enhancement of an InAs quantum dots embedded into InxGa1-xAs quantum well with GaAs as a barrier solar cells was carried out. Solar cell devices were fabricated from different structures, which were grown by using molecular beam epitaxy, with the In mole fraction (x) varied between 0 – 25 %. Poly-L-Lysine ligands and ZnO sol-gel was used to modify the surface of the solar cells and act as anti-reflection coatings. The anti-reflection characteristic of the ligands and the sol-gel were investigated by measuring the solar cell characteristics before and after the solar cells surface modifications. The current-voltage characteristics were measured of the fabricated solar cells before and after Poly-L-Lysine and ZnO coatings. A significant enhancement on the order of 40 % of the solar cells performance was observed. This type of enhancement was observed in the power conversion efficiency, spectral response measurements, and external quantum efficiency.

TiCl4 Treatment to the Substrate of Dye-Sensitized Solar Cell for the Applications on BIPV

2011 ◽  
Vol 415-417 ◽  
pp. 205-209
Author(s):  
Han Min Tian ◽  
Rui Xia Yang ◽  
Feng Lan Tian
Keyword(s):  
Solar Cell ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Current Voltage ◽  
Before And After ◽  
Voltage Performance ◽  
Photo Current

The process of TiCl4 treatment on the FTO substrate of DSSC were analyzed and the microstructures of substrates before and after treatment were observed. Further more, the influence of TiCl4 treatment on the substrate of Dye-sensitized solar cell to photo-current voltage performance was numerical analyzed.

scholarly journals Study and Assessment of Defect and Trap Effects on the Current Capabilities of a 4H-SiC-Based Power MOSFET

Electronics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 735
Author(s):  
Fortunato Pezzimenti ◽  
Hichem Bencherif ◽  
Giuseppe De Martino ◽  
Lakhdar Dehimi ◽  
Riccardo Carotenuto ◽  
...  
Keyword(s):  
Drain Current ◽  
Oxide Semiconductor ◽  
Temperature Dependent ◽  
Channel Mobility ◽  
Blocking Voltage ◽  
Current Voltage ◽  
Wide Range ◽  
Temperature Ranges ◽  
Joint Contribution ◽  
State Resistance

A numerical simulation study accounting for trap and defect effects on the current-voltage characteristics of a 4H-SiC-based power metal-oxide-semiconductor field effect transistor (MOSFET) is performed in a wide range of temperatures and bias conditions. In particular, the most penalizing native defects in the starting substrate (i.e., EH6/7 and Z1/2) as well as the fixed oxide trap concentration and the density of states (DoS) at the 4H-SiC/SiO2 interface are carefully taken into account. The temperature-dependent physics of the interface traps are considered in detail. Scattering phenomena related to the joint contribution of defects and traps shift the MOSFET threshold voltage, reduce the channel mobility, and penalize the device current capabilities. However, while the MOSFET on-state resistance (RON) tends to increase with scattering centers, the sensitivity of the drain current to the temperature decreases especially when the device is operating at a high gate voltage (VGS). Assuming the temperature ranges from 300 K to 573 K, RON is about 2.5 MΩ·µm2 for VGS > 16 V with a percentage variation ΔRON lower than 20%. The device is rated to perform a blocking voltage of 650 V.

Simulation and modeling of the influence of temperature on CdS/CdTe thin film solar cell

2019 ◽  
Vol 87 (3) ◽  
pp. 30101 ◽  
Author(s):  
Abdel-baset H. Mekky
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Influence Of Temperature ◽  
Cdte Solar Cell ◽  
Cell Parameters ◽  
Current Voltage ◽  
Capacitance Voltage ◽  
Influence Of Temperature On

Semiconductor materials cadmium sulfide (CdS) and cadmium telluride (CdTe) are employed in the fabrication of thin film solar cells of relatively excessive power conversion efficiency and low producing price. Simulations of thin film CdS/CdTe solar cell were carried out using SCAPS-1D. The influence of temperature field on the variation of CdTe solar cell parameters such as current–voltage, capacitance–voltage characteristics and the external quantum efficiency was investigated theoretically. For use temperatures, one obtains the external quantum efficiency has the same profiles. However, the effect of the temperature on the Mott-Schottky curves is slightly noted by variations on the characteristics. This conclusion can be used by solar cell manufacturers to improve the solar cell parameters with the biggest possible gain in device performance.

pH Influences on Optical Absorption of Anthocyanin from Black Rice as Sensitizer for Dye Sensitized Solar Cell TiO2 Nanoparticles

2016 ◽  
Vol 864 ◽  
pp. 154-158
Author(s):  
Mariya Al Qibtiya ◽  
Eka Cahya Prima ◽  
Brian Yuliarto ◽  
Suyatman
Keyword(s):  
Solar Cell ◽  
Optical Absorption ◽  
Dye Sensitized Solar Cell ◽  
Black Rice ◽  
X Ray ◽  
Dye Sensitized ◽  
Current Voltage ◽  
Average Grain Size ◽  
Uv Visible

Natural dyes extracted from black rice are used as sensitizer for dye sensitized solar cell. The anthocyanin extracted with various pH in acidic and neutral coditions. Preparation of fotolectrode TiO2 film using doctor blade method and resulting average grain size 33,9 nm using X-Ray Diffractometer. Characterization of morphology and cross-section film TiO2 is confirmed by Scanning Electron microscopy (SEM). Optical absorption using UV-Visible Spectroscopy to obtain spectrum absorbance of anthocyanin in various pH. The current-voltage (J-V) characterization shows the performance DSSC have a match relation to the optical absorption. The best absorption of anthocyanin obtained at pH 6 as well as conversion efficiency reaches 2.26% at this pH condition.

Identification of defect types in moderately Si-doped GaInNAsSb layer in p-GaAs/n- GaInNAsSb/n-GaAs solar cell structure using admittance spectroscopy

2012 ◽  
Vol 112 (11) ◽  
pp. 114910 ◽  
Author(s):  
Muhammad Monirul Islam ◽  
Naoya Miyashita ◽  
Nazmul Ahsan ◽  
Takeaki Sakurai ◽  
Katsuhiro Akimoto ◽  
...  
Keyword(s):  
Solar Cell ◽  
Cell Structure ◽  
Admittance Spectroscopy ◽  
Solar Cell Structure ◽  
Si Doped
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