scholarly journals Exploring optical properties of solar cells by programming and modeling

2020 ◽  
Vol 5 (1) ◽  
pp. 032-038
Author(s):  
Jasurbek Gulomov ◽  
Rayimjon Aliev ◽  
Murodjon Abduvoxidov ◽  
Avazbek Mirzaalimov ◽  
Navruzbek Mirzaalimov
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Solar Cells ◽  
Solar Cell ◽  
Incident Light ◽  
C Programming Language ◽  
Reflective Layer ◽  
Reflected Light ◽  
C Programming ◽  
Main Factors

One of the main factors influencing the efficiency of solar cells is their optical properties. So, most light is reflecting back and transmit through solar cell. This leads to a decrease in the efficiency. We know that the refractive index of silicon is 3-4 depending on the wavelength of light, and the refractive index of air is about 1. This causes to reflect 34 percentages of the incident light. To reduce the amount of reflected light, the surface of the solar cell should be covered with an anti-reflection layer. It is important to determine the conditions of the types and thicknesses of the material covering the surface of the solar cell. Semiconductor devices modeling has become very popular. Because the results obtained through modeling are very close to the experimental results. In this study, we also modeled the solar cell with and without an anti-reflective layer using the Sentaurus TCAD software package and presented the results obtained. A new program was developed using the C # programming language, and a library was developed to help new researchers study the optical properties of solar cells directly for that program, and a number of results were obtained.

scholarly journals Ultrathin and compact electron transport layer made from novel water-dispersed Fe3O4 nanoparticles to accomplish UV-stable perovskite solar cells

2021 ◽  
Author(s):  
Song Fang ◽  
Bo Chen ◽  
Bangkai Gu ◽  
Linxing Meng ◽  
Hao Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Electron Transport ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Perovskite Material ◽  
Main Factors ◽  
Induced Decomposition

UV induced decomposition of perovskite material is one of main factors to severely destroy perovskite solar cells for instability. Here we report a UV stable perovskite solar cell with a...

Synergistic improvements in the performance and stability of inverted planar MAPbI3-based perovskite solar cells incorporating benzylammonium halide salt additives

2021 ◽  
Author(s):  
Hung-Cheng Chen ◽  
Jie-Min Lan ◽  
Hsiang-Lin Hsu ◽  
Chia-Wei Li ◽  
Tien-Shou Shieh ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Optical Properties ◽  
Solar Cells ◽  
Solar Cell ◽  
Surface Morphology ◽  
Perovskite Solar Cells ◽  
Cell Performance ◽  
Solar Cell Performance ◽  
Halide Salt

Three different benzylammonium halide (Cl, Br, and I) salts were investigated to elucidate their effects as additives on MAPbI3 perovskite surface morphology, crystal structure, optical properties, and solar cell performance and stability.

scholarly journals Analytical Study of the Electrical Output Characteristics of c-Si Solar Cells by Cut and Shading Phenomena

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3397 ◽  
Author(s):  
Jong Lim ◽  
Woo Shin ◽  
Hyemi Hwang ◽  
Young-Chul Ju ◽  
Suk Ko ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Crystalline Silicon ◽  
Short Circuit ◽  
Incident Light ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Si Solar Cell ◽  
Si Solar Cells ◽  
Electrical Output

Cut solar cells have received considerable attention recently as they can reduce electrical output degradation when the c-Si solar cells (crystalline-silicon solar cells) are shaded. Cut c-Si solar cells have a lower short-circuit current than normal solar cells and the decrease in short-circuit currents is similar to the shading effect of c-Si solar cells. However, the results of this study’s experiment show that the shadow effect of a c-Si solar cell reduces the V o c (open circuit voltage) in the c-Si solar cell but the V o c does not change when the c-Si solar cell is cut because the amount of incident light does not change. In this paper, the limitations of the electrical power analysis of the cut solar cells were identified when only photo current was considered and the analysis of the electric output of the cut c-Si solar cells was interpreted with a method different from that used in previous analyses. Electrical output was measured when the shaded and cut rates of c-Si solar cells were increased from 0% to 25, 50 and 75%, and a new theoretical model was compared with the experimental results using MATLAB.

Using phosphor to enhance the efficiency of commercial solar cells

2019 ◽  
Vol 33 (14n15) ◽  
pp. 1940041
Author(s):  
Zhan-Sheng Yuan ◽  
Chih-Cheng Chen ◽  
Yu-Ying Lie ◽  
Cheng-Fu Yang
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Thick Film ◽  
Light Source ◽  
Uv Light ◽  
Control Device ◽  
Bottom Surface ◽  
Phosphor Layer ◽  
Reflective Layer ◽  
Rare Earth Phosphor

The non-rare-earth phosphor Ca2ZnMoO6 has a luminescence of 375–655 nm and emits near-white light. This study investigated it as a down-shifting layer to improve the efficiency of commercial flexible solar cells. The first structure was a solar cell/thick-film Ca2ZnMoO6 phosphor layer (TLDU device); a controlled light source was shone on the top, and UV light was shone on the bottom. The second structure was a solar cell/thick-film Ca2ZnMoO6 phosphor layer with an Al reflective layer (TLDR device), and only a controlled light source was used. We compared the power output efficiencies of the two structures with the efficiency of a control device. When the [Formula: see text]–[Formula: see text] properties of the three different devices were measured, the [Formula: see text] value underwent no apparent change, but the [Formula: see text] increased in the TLDU and TLDR devices. These results suggest that if placed on the bottom surface of commercial solar cells, Ca2ZnMoO6 phosphor could improve their efficiency.

Effect of Chemical Treatment on the Optical Properties of a Cadmium Telluride Photovoltaic Device Investigated by Spectroscopic Ellipsometry

2009 ◽  
Vol 131 (2) ◽  
Author(s):  
Sandeep Kohli ◽  
Venkatesan Manivannan ◽  
James N. Hilfiker ◽  
Patrick R. McCurdy ◽  
Robert A. Enzenroth ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Solar Cell ◽  
Spectroscopic Ellipsometry ◽  
Cadmium Chloride ◽  
Cdte Layer ◽  
Photovoltaic Device ◽  
Band Gaps ◽  
Copper Treatment ◽  
Treated Layer

Spectroscopic ellipsometry has been successfully used to characterize the CdS/CdTe heterojunction solar cell deposited on TEC15 glass. The effects of copper treatment on the optical properties of a cadmium chloride treated photovoltaic device were investigated using ellipsometry. No changes in either the band gaps or critical points of CdTe layer were noticed as a result of copper treatment. The copper treated CdTe layer exhibited a higher refractive index in the visible and longer wavelengths (≤3 eV), as compared with the untreated layer. This was attributed to the increased disorder in the case of copper treated layer.

scholarly journals Multi-type quantum dots photo-induced doping enhanced graphene/semiconductor solar cell

RSC Advances ◽  
2017 ◽  
Vol 7 (53) ◽  
pp. 33413-33418 ◽  
Author(s):  
Jianghong Wu ◽  
Sirui Feng ◽  
Zhiqian Wu ◽  
Yanghua Lu ◽  
Shisheng Lin
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solar Cell ◽  
Incident Light

ZnO and InP QDs were applied to improve the performance of graphene (Gr)/semiconductor solar cells, which can effectively hop light-induced carriers into Gr by absorbing incident light at the surface; under such cooperative doping, final PCE was improved by 34.2%.

Structure stability and optical properties of Tin-based iodide Perovskite

2021 ◽  
Author(s):  
Atsuko Ide ◽  
Satoshi Iikubo ◽  
Kumiko Yamamoto ◽  
Qing Shen ◽  
Kenji YOSHINO ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Solar Cell ◽  
Absorption Coefficient ◽  
Formation Energy ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Vacancy Formation ◽  
Structure Stability ◽  
Experimental Values

Abstract In this study, we investigated the optical properties, band gap, dielectric function, and absorption coefficient of Sn-based perovskites, which are considered as potential candidates for Pb-free perovskite solar cells. In addition, the quantum efficiency of the perovskite solar cell was investigated, and the values were compared with the experimental values. Furthermore, as an element that suppresses Sn vacancy formation, we focused on the B site of MASnI3 and investigated the vacancy formation energy by substituting various elements. The absorption coefficient was calculated to investigate the effects of additive element, which suppresses Sn vacancies, on the optical characteristics.

Enhancement of solar cell using two nanoparticles (Ag–Au)

2019 ◽  
Vol 33 (24) ◽  
pp. 1950289 ◽  
Author(s):  
Khoulud Kh. AbuShaar ◽  
Mohammed M. Shabat ◽  
Dena M. El-Amassi ◽  
Daniel M. Schaadt
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Cell Model ◽  
Cell Structure ◽  
Incident Light ◽  
Physical Parameters ◽  
Structure Model ◽  
Metallic Nanoparticle ◽  
Solar Cell Structure ◽  
The Matrix

In this paper, photovoltaics (PV)- or solar cells based on two types of nanoparticles have been investigated. The suggested four-layer solar cell model consists of metallic nanoparticle (Ag–Au) layers that are Si-based and covered by SiN. The transmission and reflection of the incident light on the structure model have been computed for different physical parameters of the structure. Higher transmission and lower reflections have been obtained leading to higher efficiency of the solar cells. The matrix model is used, and the numerical results obtained by MAPLE Software Program. The obtained results confirm that the nanoparticle solar cell structure can effectively enhance the efficiency of such structure model.

Effect of Material Parameters on the Optical Properties of Dye-Sensitized Solar Cell Photoanode

2013 ◽  
Vol 771 ◽  
pp. 115-119
Author(s):  
Amrik Singh ◽  
Devendra Mohan ◽  
Dharamvir Singh Ahlawat ◽  
Divya Jyoti
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Solar Cell ◽  
Absorption Index ◽  
Dye Sensitized Solar Cell ◽  
Semiconductor Film ◽  
Dispersive Transport ◽  
Material Parameters ◽  
Dye Sensitized ◽  
Simulation Task

The presented theoretical analysis predicts the behaviour of optical properties of film with regards to materialistic parameters of the photoanode of dye-sensitized solar cell using the theory of dispersive transport. The porous nature of photoanode is considered for the simulation task. The variations in refractive index and absorption index of the semiconductor film with change in the values of thickness and porosity are studied by using finite element method. The theoretically demonstrates that refractive index increases with the increase in thickness and decreases with increase in porosity but absorption index shows a monotonic behaviour.

Sign in / Sign up

Export Citation Format

Share Document