312 Effect of Crystal Grain Size on Output Power of Cu_2O/Cu Solar Cell

2013 ◽  
Vol 2013.49 (0) ◽  
pp. 93-94
Author(s):  
Kenta HASUDA ◽  
Hitoshi SOYAMA
Keyword(s):  
Grain Size ◽  
Solar Cell ◽  
Output Power

scholarly journals Model for Predicting the Operating Temperature of Stratospheric Airship Solar Cells with a Support Vector Machine

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1228
Author(s):  
Xuwei Wang ◽  
Zhaojie Li ◽  
Yanlei Zhang
Keyword(s):  
Support Vector Machine ◽  
Solar Cell ◽  
Energy Balance ◽  
Output Power ◽  
Operating Temperature ◽  
Support Vector ◽  
Power Calculation ◽  
Pv System ◽  
Stratospheric Airship ◽  
Cell Modules

The stratospheric airship is a kind of aircraft that completely relies on the cycle of photovoltaic energy systems to achieve long duration flight. The accurate estimation of the operating temperature of solar cell modules on stratospheric airship is extremely important for the design of photovoltaics system (PV system), the output power calculation of PV system, and the calculation of energy balance. However, the related study has been rarely reported. A support vector machine prediction method based on particle swarm optimization algorithm (PSO-SVM) was established to predict the operating temperature of solar cell modules on stratospheric airship. The PSO algorithm was used to dynamically optimize the SVM’s parameters between the operating temperature of the solar cell modules and the measured data such as atmospheric pressure, solar radiation intensity, flight speed, and ambient temperature. The operating temperature data of the two sets of solar cell modules measured in the flight test were used to verify the accuracy of the temperature prediction model, and the prediction results were compared with a back propagation neural network (BPNN) method and the simulation results calculated by COMSOL Multiphysics of COMSOL, Inc., Columbus, MA, USA. The results shown that the PSO-SVM model realized the accurate prediction of the operating temperature of solar cell modules on stratospheric airship, which can guide the design of PV system, the output power calculation of PV system, and the calculation of energy balance.

The Improvement of Solar Cell Output Power Using Cooling and Reflection from Mirror

2017 ◽  
Vol 8 (3) ◽  
pp. 1320
Author(s):  
Budiyanto Budiyanto ◽  
Fadliondi Fadliondi
Keyword(s):  
Experimental Investigation ◽  
Solar Cell ◽  
Output Power ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Maximum Power ◽  
Light Reflection

This paper explains the experimental investigation to improve the output power of solar cell using cooling and light reflection from mirrors. The results show that by adding mirror, the current and output power of solar cell increase but the open circuit voltage and maximum power voltage decrease due to heat. By adding cooling, the open circuit voltage and the maximum power voltage are improved, so the output power also increases.

Analysis of Output Power Degradation for Tunnel Metal–Insulator–Semiconductor Solar Cell

2003 ◽  
Vol 42 (Part 1, No. 10) ◽  
pp. 6339-6345 ◽  
Author(s):  
Koji Yano ◽  
Azuma Shimizu ◽  
Shigeru Shinoda ◽  
Masanobu Kasuga
Keyword(s):  
Solar Cell ◽  
Output Power ◽  
Metal Insulator ◽  
Metal Insulator Semiconductor

The Fabrication and Photoelectric Properties of the Nanopillar Arrays for Solar Cell

2011 ◽  
Vol 694 ◽  
pp. 375-379 ◽  
Author(s):  
Jing Liu ◽  
Yuan Xun Liao ◽  
Bo Wang ◽  
Fu Ting Yi
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Output Power ◽  
Inductively Coupled Plasma ◽  
Incident Angle ◽  
Electric Energy ◽  
Average Diameter ◽  
Light Spectrum ◽  
Aspect Ratios ◽  
Photoelectric Properties

a method combining Csesium Chloride (CsCl) self-assembly and inductively coupled plasma (ICP) etching has been used to fabricate nanopillars with high aspect ratio structures on sillicon wafer. The silicon surface with nanopillars of average diameter 350nm and aspect ratios 4, like black wafer, has very low reflectivity at a width of light spectrum. After diffusion of phosphorus (P) and passivation of SiO2 layer on the pillars surface, the reflectivity has been reduced more to below 3% for wavelength from 400nm to 800nm, which could meet the requirement of antireflection for solar cells. What’s more, the reflectivity of nanopillar surface could not obey the formula of reflection to increase with the incident angle of light like planar, and has almost unchanged small values at incident angle of 10°-50°. The solar cell with nanopillars has been fabricated with thermal diffusion of P, chemical deposion of Cu electrode with UV lithography. Its I×V output power of photoelectric property has been measured with sunlight at different time in one day corresponding to different incident angle, and measure of common solar cell is done at the same time for comparation. In order to select the inflection factor of incident angle, the data of output power have been united by dividing max value for nanopillar and common solar cells individually. The united curve of nanopillars cell shows obviously larger value than that of common cell at above incident angle of about 15°, which means nanopillars cell could have the potential ability to offer more electric energy production daily than that of common solar cell.

scholarly journals Effect of treatment condition on perovskite film for perovskite solar cell application

2021 ◽  
pp. 81-86
Author(s):  
Ho Phuong
Keyword(s):  
Grain Size ◽  
Solar Cell ◽  
Treatment Condition ◽  
Suitable Condition ◽  
Perovskite Solar Cell ◽  
Solution Deposition ◽  
Solar Cell Application ◽  
Perovskite Material ◽  
Prepared Material ◽  
Effect Of Treatment

In this study, the Perovskite material CH3NH3PbI3 was prepared using two-step sequential solution deposition technique. The treatment condition for Perovskite film including dipping duration, reaction temperature and annealing temperature was studied. Crystal structure, grain size, and purity of the prepared material were examined using XRD and SEM methods. The results indicate that controlling treatment condition has a significant effect on the crystallinity and purity of Perovskite film. Under suitable condition, the obtained Perovskite material has a tetragonal structure and grain size ranges from 200 to 400 nm. The Perovskite film was then applied as a light-harvesting material in Perovskite solar cell. The device exhibits a power conversion efficiency of 5.18% with JSC of 13.6 mA cm-2, VOC of 0.83 V, and fill factor of 45.9%.

scholarly journals The use of convex lens as primary concentrator for multi-junction solar cells

2018 ◽  
Vol 2 ◽  
pp. 5
Author(s):  
Juan Paolo Lorenzo Gerardo Barrios ◽  
John Raffy Cortez ◽  
Gene Michael Herman ◽  
Aris Larroder ◽  
Bernice Mae Yu Jeco ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Output Power ◽  
Fresnel Lens ◽  
Lens System ◽  
Junction Solar Cell ◽  
Convex Lens

A concentrator lens system was designed for a multi-junction solar cell, CDO-100-C3MJ, with an added feature − a convex lens was added above the Fresnel lens in order to improve the output power of the setup and reduce the need for the use of solar trackers. The convex lens setup was tested with the Fresnel lens setup over a 3-day photoperiod by measuring the voltage, current, irradiance, and temperature at every hour. The results showed that the convex lens setup produced 1.94% more power, but only at around midday. The increase in power is due to the convex lens that focuses a greater amount of irradiance on the solar cell over the course of the day.

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