A Kind of Effective Method to Improve the Conversion Efficiency of the Solar Cell

2015 ◽  
Vol 8 (1) ◽  
pp. 68-72 ◽  
Author(s):  
Xing-Fang Jiang ◽  
Xiang-Min Kong ◽  
Xin-Lu Li ◽  
Hong Jiang ◽  
Dong-Dong Chen
Keyword(s):  
Solar Cell ◽  
Silicon Wafer ◽  
Conversion Efficiency ◽  
Front Surface ◽  
Back Surface ◽  
Two Dimensional ◽  
Laser Array ◽  
Dimensional Array ◽  
Cell Conversion ◽  
Laser Perforation

For the bottleneck problem of the conversion efficiency in silicon-based solar cell, the Metallization Wrap– through (MWT) technology is one of the effective methods based on the analysis of factors affecting the solar cell conversion efficiency. The MWT technology is based on laser perforation and that the bus grid lines in the front surface of the solar cell are moved to the back surface. The effective area on the front surface increases and the conversion efficiency is improved. One of the most important processes in MWT technology is laser perforation and a new perforation scheme using two-dimensional laser array is designed. The high power laser is divided into a number of beams then those beams are arranged in a two-dimensional array. The silicon wafer is placed in a predetermined position by suction cup and is moved by stepper motor. The light barriers are opened by triggering switch and the silicon wafer is exposed. After a series of light, machine, and electric processes a rapid one-time two-dimensional array laser perforation on silicon wafer is formed. This patent is expected to be used in solar cell production department soon.

A review on two-dimensional (2D) perovskite material-based solar cells to enhance the power conversion efficiency

2022 ◽  
Author(s):  
Ehsan Elahi ◽  
Ghulam Dastgeer ◽  
Abdul Subhan Siddiqui ◽  
Supriya A. Patil ◽  
Muhammad Waqas Iqbal ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Two Dimensional ◽  
Rapid Progress ◽  
Perovskite Materials ◽  
Perovskite Material

With perovskite materials, rapid progress in power conversion efficiency (PCE) to reach 25% has gained a significant amount of attention from the solar cell industry.

scholarly journals Low-Frequency Noise and Microplasma Analysis for c-Si Solar Cell Characterization

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Jiří Vanek ◽  
Jan Dolensky ◽  
Zdenek Chobola ◽  
Mirek Luňák ◽  
Aleš Poruba
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Low Frequency ◽  
Low Noise ◽  
Frequency Noise ◽  
Noise Spectral Density ◽  
Selective Emitter ◽  
Noise Spectroscopy ◽  
Cell Conversion

This paper brings the comparison of solar cell conversion efficiency and results from a noise spectroscopy and microplasma presence to evaluate the solar cell technology. Three sets of monocrystalline silicon solar cells (c-Si) varying in front side phosphorus doped emitters were produced by standard screen-printing technique. From the measurements it follows that the noise spectral density related to defects is of 1/ftype and its magnitude. It has been established that samples showing low noise feature high-conversion efficiency. The best results were reached for a group solar cells with selective emitter structure prepared by double-phosphorus diffusion process.

Efficiency Enhancement of Photovoltaic/Thermal Module Using Front Surface Cooling Technique in Winter and Summer Seasons: An Experimental Investigation

2019 ◽  
Vol 141 (9) ◽  
Author(s):  
Himanshu Sainthiya ◽  
Narendra S. Beniwal
Keyword(s):  
Solar Cell ◽  
Surface Water ◽  
Surface Temperature ◽  
Front Surface ◽  
Climatic Conditions ◽  
Back Surface ◽  
Water Cooling ◽  
Performance Parameters ◽  
Surface Cooling ◽  
Overall Efficiency

This paper presents the effect of the front surface water cooling on performance parameters (solar cell temperature, back surface temperature, outlet water temperature, electrical efficiency, overall efficiency, etc.) of photovoltaic/thermal (PV/T) module in both winter and summer seasons in Indian climatic conditions. A mathematical model of PV/T module considering energy balance equations has also been presented. A comparative analysis of performance parameters obtained analytically and experimentally has also been presented. A fair agreement has also been found between analytical and experimental results which is supported by correlation coefficient of approximately unity and root mean square error of 10–14%. By front surface water cooling, solar cell and back surface temperature of PV/T module have been found to decrease considerably which in turn resulted in enhanced electrical and overall efficiency of module in winter and summer seasons.

Polarization dependent solar cell conversion efficiency at oblique incident angles and the corresponding improvement using surface nanoparticle coating

2011 ◽  
Vol 22 (48) ◽  
pp. 485202 ◽  
Author(s):  
Yen-Jen Hung ◽  
Shao-Sun Hsu ◽  
Yu-Ting Wang ◽  
Chun-Hsiang Chang ◽  
Liang-Yi Chen ◽  
...  
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
Nanoparticle Coating ◽  
Cell Conversion

ELECTRICAL CHARACTERIZATION OF P3HT/PCBM BULK HETEROJUNCTION ORGANIC SOLAR CELL

2012 ◽  
Vol 01 (01) ◽  
pp. 1250004 ◽  
Author(s):  
ENG KOK CHIEW ◽  
MUHAMMAD YAHAYA ◽  
AHMAD PUAAD OTHMAN
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
Organic Solar Cell ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Effective Medium ◽  
Semiconductor Layer ◽  
Effective Medium Model ◽  
Medium Model ◽  
Cell Conversion

Photovoltaic performance of bulk heterojunction organic solar cell based on poly (3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) were investigated. The active layer is a spin coated organic blend of a p material (P3HT) and an n-material from the fullerene derivative PCBM; it is sandwiched between electrodes ITO-PEDOT/PSS and Al/LiF as back-contact. Modeling of organic bulk heterojunction solar cells is complicated because of various internal mechanisms involved. Two models have been suggested, namely an effective medium model and a network model. We applied an effective medium model where the main assumption is the p–n nanostructure is treated as one single effective semiconductor layer, and parameters in this configuration are fed into a standard solar cell device simulator, called SCAPS. In this model, other non-carrier related properties, such as the refractive index n, the dielectric constant ε and the absorption constant α are influenced by both p–n materials and used as input parameters. The power conversion efficiency of 3.88% with short circuit current density of 20.61 mA/cm2, open circuit voltage of 0.39 V and fill factor of 48% were obtained. Finally, factors which could limit cell conversion efficiency are discussed.

scholarly journals Surface Passivation Studies on n+pp+ Bifacial Solar Cell

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Suhaila Sepeai ◽  
M. Y. Sulaiman ◽  
Kamaruzzaman Sopian ◽  
Saleem H. Zaidi
Keyword(s):  
Solar Cell ◽  
Screen Printing ◽  
Surface Passivation ◽  
Chemical Vapor ◽  
Front Surface ◽  
Back Surface ◽  
Antireflective Coatings ◽  
Solar Cell Performance ◽  
Sandwiched Structure ◽  
Bifacial Solar Cell

Bifacial solar cell is a specially designed solar cell for the production of electricity from both sides of the solar cell. It is an active field of research to make photovoltaics (PV) more competitive by increasing its efficiency and lowering its costs. We developed an n+pp+ structure for the bifacial solar cell. The fabrication used phosphorus-oxy-trichloride (POCl3) diffusion to form the emitter and Al diffusion using conventional screen printing to produce the back surface field (BSF). The n+pp+ bifacial solar cell was a sandwiched structure of antireflective coatings on both sides, Argentum (Ag) as a front contact and Argentum/Aluminum (Ag/Al) as a back contact. This paper reports the solar cell performance with different surface passivation or antireflecting coatings (ARC). Silicon nitride (SiN) deposited by Plasma-Enhanced Chemical Vapor Deposition (PECVD), thermally grown silicon dioxide (SiO2), PECVD-SiO2, and SiO2/SiN stack were used as ARC. The efficiency obtained for the best bifacial solar cell having SiN as the ARC is 8.32% for front surface illumination and 3.21% for back surface illumination.

scholarly journals Mathematical Modelling of Bifacial Dual SIS Solar Cell and Optimization of Tilt Angle

2021 ◽  
Author(s):  
Kaustuv Dasgupta ◽  
Anup Mondal ◽  
Utpal Gangopadhyay
Keyword(s):  
Solar Cell ◽  
Mathematical Modelling ◽  
Indian Subcontinent ◽  
Front Surface ◽  
Back Surface ◽  
Tropical Region ◽  
Solar Panels ◽  
Sis Junction ◽  
Optimum Cost ◽  
P Type

Abstract The major challenge of PV cell design and installation has always been to find the optimum cost per energy and area of installation of solar panels. In densely populated and high-yielding agricultural country like India land acquisition is becoming an issue. Moreover the consisting demand to deduce the cost per energy indulges the worldwide scientists to design more efficient solar cells with low production cost. In developing countries scientists and engineers are trying to find an amicable solution to meet up these problems. In this paper the mathematical modelling of a dual SIS bifacial vertically mounted solar panel has been proposed to mitigate the energy and land area crisis in countries of Indian subcontinent, south Asia and elsewhere. The SIS (Semiconductor-Insulator-Semiconductor) technology was chosen for its extremely low thermal budget and less complicated production procedure. A bifacial solar cell with SIS junction in both sides was modelled. The front surface SIS junction was considered ZnO-SiO2-Si(p-type) while the back surface junction was considered Si(p type)-Al2O3-SnO. The efficiency for front and back surface was calculated as 5.64% and 5.58% respectively. We have further considered the effect of albedo from two different surfaces (soil and concrete) and the efficiencies of front and back surface for these albedo radiations. The angle of installation was optimized for both these effects. Considering both direct and albedo the all-day efficiency was calculated as 22.47% for a sunny day tropical region.

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