scholarly journals Preparation of Polyaniline/TiO2 Photovoltaic Solar Cell

2021 ◽  
Vol 15 (2) ◽  
pp. 102-115
Author(s):  
Syed Lukhman ◽  
◽  
Nadiah Natar ◽  
Nureel Ghani ◽  
Amira Shukor ◽  
...  
Keyword(s):  
Solar Cell ◽  
Indium Tin Oxide ◽  
Photovoltaic Performance ◽  
Single Layer ◽  
Cell System ◽  
Photovoltaic System ◽  
Casting Method ◽  
Xrd Pattern ◽  
Photovoltaic Solar Cell ◽  
Ito Glass

Polyaniline (PANI) and Kronos C doped Titanium dioxide (TiO2) was fabricated as PANI/TiO2 solar cell and reported on its simple photovoltaic performance detected by using voltameter and tested for stability for 12 months. The PANI and TiO2 were coated onto different indium tin oxide (ITO) glass plates by using a drop-casting method and sandwich attached for simple solar cell preparation. PT4 sample was the optimum solar cell with 0.2: 0.2 g of PANI: TiO2 ratio under 2 cm2 surface area based on the highest voltage produces from 100 mW cm-1 of light intensity metal highlight lamp. No voltage was detected for PT7 where the single layer TiO2 coated without PANI attached for solar cell system using same fabrication. It shows that PANI has a significant role in functionalizing the photovoltaic system. The C-N stretching of aromatic amine and C-N stretching for the benzenoid at peaks of 1222 and 1166 cm-1 respectively in FTIR spectra has confirmed the PANI structure supported by an XRD pattern. TP4 has the highest photovoltaic performance compared to other types of TiO2 based on the electron lifetime (τe) and the voltage produced was sustained up to 12 months.

scholarly journals Oxide p-n Heterojunction of Cu2O/ZnO Nanowires and Their Photovoltaic Performance

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Seung Ki Baek ◽  
Ki Ryong Lee ◽  
Hyung Koun Cho
Keyword(s):  
Solar Cell ◽  
Photovoltaic Performance ◽  
Wavelength Region ◽  
Chemical Vapor ◽  
Zno Nanowires ◽  
Organic Chemical ◽  
Glass Substrates ◽  
Constant Ph ◽  
Ito Glass ◽  
P Type

Oxide p-n heterojunction devices consisting of p-Cu2O/n-ZnO nanowires were fabricated on ITO/glass substrates and their photovoltaic performances were investigated. The vertically arrayed ZnO nanowires were grown by metal organic chemical vapor deposition, which was followed by the electrodeposition of the p-type Cu2O layer. Prior to the fabrication of solar cells, the effect of bath pH on properties of the absorber layers was studied to determine the optimal condition of the Cu2O electrodeposition process. With the constant pH 11 solution, the Cu2O layer preferred the (111) orientation, which gave low electrical resistivity and high optical absorption. The Cu2O (pH 11)/ZnO nanowire-based solar cell exhibited a higher conversion efficiency of 0.27% than the planar structure solar cell (0.13%), because of the effective charge collection in the long wavelength region and because of the enhanced junction area.

Electrical Properties of Azo-Ferrocene as Organic Diode

2014 ◽  
Vol 895 ◽  
pp. 505-508
Author(s):  
Siti Athirah Mohamad Jamali ◽  
Hasiah Salleh ◽  
Tei Tagg
Keyword(s):  
Electrical Conductivity ◽  
Bias Voltage ◽  
Indium Tin Oxide ◽  
Single Layer ◽  
Potential Range ◽  
Voltage Measurement ◽  
Slow Increase ◽  
Current Voltage ◽  
Ito Glass ◽  
Single Layer Film

Ferrocene is a well-known electron donor due to its chemical stability and redox behaviour. By introducing azo dye as an acceptor in the system, the characteristics of azo-ferrocene (AF) compound as a semiconductor material have been investigated. A single layer film of AF compound was deposited on an indium tin oxide (ITO) glass substrate by electrochemical method in the potential range of 0.4 V to 0.8 V. Electrical conductivity of the thin film was investigated using a four-point probe and I-V characteristic of the diode was determined via a two-point probe method. AF material showed an average electrical conductivity of 0.246 ± 0.003 Scm-1. The forward current-voltage measurement demonstrated a bias voltage in the range of 0.87 V to 10.0 V, and the backward current-voltage measurement indicated a bias voltage in the range of-0.87 V to-7.0 V. In both forward and backward voltages, the current showed a slow increase beyond the readings of 10.0 V to-7.0 V.

Controlled Fabrication of the CdS Nanocrystals Films and its Application in Hybrid Solar Cells

2013 ◽  
Vol 742 ◽  
pp. 139-142
Author(s):  
Wei Wei He ◽  
Hui Min Jia ◽  
Yan Lei
Keyword(s):  
Indium Tin Oxide ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Glass Substrates ◽  
Cds Nanocrystals ◽  
Ito Glass ◽  
One Step ◽  
Cds Film

In this paper, we fabricated the CdS nanocrystals film on indium-tin oxide (ITO) glass substrates through one-step solvothermal treatment of cadmium nanocrystals layer and sulfur powder in the presence of absolute ethanol. And then we spin-coated a poly (3-hexylthiophene) (P3HT) layer in the CdS film, and finally evaporated an Au electrode through a shadow mask. The resulting products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and atomic force microscope (AFM). A photovoltaic performance measurement of the fabricated device (ITO/CdS:P3HT/Au) shows a short circuit current density (Jsc) of 0.82 mA cm2, and a power conversion efficiency (η) of 0.03% under an illumination of 100 mW/cm2.

Nano-Efficient Photoelectric Conversion-Based Solar Photovoltaic System and Its Usage in Green Buildings

2021 ◽  
Vol 16 (2) ◽  
pp. 264-272
Author(s):  
Yibing Xue ◽  
Ziye Song
Keyword(s):  
Solar Cell ◽  
Solar Energy ◽  
Dye Sensitized Solar Cells ◽  
Control Unit ◽  
Green Buildings ◽  
Photovoltaic System ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Photovoltaic Solar Cell ◽  
Photoelectric Properties

Solar energy is a world-recognized green and pollution-free energy source. Photovoltaic technology based on solar energy has become the focus of new energy development. On this basis, how to improve the energy efficiency of solar energy has become a research hotspot. In this study, the solution method was used, acety-lacetonate was used as the precursor, and the mixture of dodecyl mercaptan (DDT) and oleylamine (OLA) was used as the solvent to obtain CuInS2 nanocrystals with wurtzite structure. Then, the dispersion of organic synthesized CuInS2 nanocrystals was retained, and the organic macromolecules affecting electron transport in the nanocrystals were eliminated. This material was used for the counter electrode of dye-sensitized solar cells. While analyzing the photoelectric characteristics of the nanoelectronic material, the hardware of the photovoltaic solar cell prepared based on the material should be designed, including the selection of the main control unit, the design of the peripheral circuit, the design of the charging and discharging circuit, so as to realize the management of the photovoltaic solar cell. In the test, OLA had an impact on the crystal structure, size, and dispersion of CuInS2 nanocrystals, thereby changing the photoelectric properties of the nanoelectronic materials, which were applied in photovoltaic panels for green buildings. The photoelectric conversion efficiency of CuInS2 nanocrystals after phase exchange in the green build-photovoltaic system was much higher than that of CuInS2 nanocrystals before phase exchange, and even higher than that of CuInS2 nanocrystals calcined at high temperature before phase exchange in the green build-photovoltaic system.

Sun Intensity and Angle on Efficiency of Solar Cell System

2014 ◽  
Vol 627 ◽  
pp. 182-186
Author(s):  
Bo Wun Huang ◽  
Jung Ge Tseng ◽  
Der Ren Hsiao
Keyword(s):  
Solar Cell ◽  
Solar Energy ◽  
Photovoltaic Effect ◽  
Renewable Resource ◽  
Cell System ◽  
Photovoltaic System ◽  
Output Energy ◽  
Energy Output ◽  
Solar Module ◽  
Available Energy

Sun intensity and angle on efficiency of solar cell System is considered to study. Solar energy is a clean, non-polluting and renewable resource; it uses the photovoltaic effect to convert sunlight into a free and available energy source. However, solar energy output is highly affected by the temperature and intensity of sunlight. As the temperature of the solar module rises, energy output will decrease, if the intensity of sunlight is stronger, there will be more output energy. With adequate heat sink and proper ventilation, a module’s temperature will be decreased, and also increase output energy. This study uses 10 kilowatt grid-connected photovoltaic system and a solar tracker to measure the direction of the sun, to find out the relationship between solar intensity and angle effects on energy output.

scholarly journals Angular Dependence of Photonic Crystal Coupled to Photovoltaic Solar Cell

2020 ◽  
Vol 10 (5) ◽  
pp. 1574 ◽  
Author(s):  
J. M. Delgado-Sanchez ◽  
I. Lillo-Bravo
Keyword(s):  
Solar Cell ◽  
Photonic Crystal ◽  
Photonic Crystals ◽  
Angular Dependence ◽  
Bragg Peak ◽  
Photovoltaic Performance ◽  
Photovoltaic System ◽  
Design Stage ◽  
Early Design Stage ◽  
Research Article

Photonic crystals have the advantage of minimizing thermal losses from solar cells, reflecting the solar radiation that is not absorbed by the photovoltaic device. To optimize this optical response, photonic crystals are designed considering the relative position of the Bragg peak and the bandgap of the solar cell, under normal incident irradiation conditions. The aim of this research article was to determine experimentally the optical limits of a solar cell coupled to a photonic crystal acting as beam splitter. For that purpose, the photovoltaic system was characterized under indoor and outdoor conditions; angular dependence of the irradiation source was determined in each case, and both results were compared with good agreement. Moreover, other parameters such as irradiation spectrum and polarization of the light were investigated. The main conclusion is that photovoltaic performance is highly affected by the Bragg peak shifting and the profile is distorted, due to the angular dependence with the sun. These experimental limits must be considered at the early design stage to avoid performance losses.

scholarly journals Treatment Combination Menggunakan Double Layer, Teknik Kompresi dan Perendaman Ultrasonik Pada Pembuatan Photoelektroda Untuk Peningkatan Efesiensi DSSC

2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Hadi Santoso ◽  
Abdul Muis Prasetia
Keyword(s):  
Solar Cell ◽  
Double Layer ◽  
Single Layer ◽  
Electrical Energy ◽  
Base Layer ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitizer ◽  
Cell Efficiency ◽  
Dye Sensitized ◽  
Ito Glass

AbstrakTelah dibuat Dye Sensitized Solar Cell (DSSC) yang dapat mengkonversi cahaya menjadi energi listrik denan memanfaatkan Black Dye N-749 sebagai dye sensitizer dan bahan semikonduktor TiO2 sebagai penyusun photoelektroda yang terdeposisi pada kaca ITO dengan luasan 1 cm2. Variasi dilakukan pada proses pembuatan photoelektroda, dimana proses dimulai dari photoelektroda yang dibuat menjadi single/double layer TiO2 yang terdiri dari lapisan nanopartikel pada lapisan dasar, sedangkan lapisan atas tersusun atas partikel berukuran sub-mikro. Proses selanjutnya adalah kompresi mekanik pada lapisan semikonduktor dengan beban 25 kg/satuan luas. Proses diakhiri dengan perendaman photoelektroda dengan tujuan mengadsorpsi partikel dye pada lapisan TiO2. Perendaman dilakukan menggunakan proses ultrasonik dengan waktu 20 detik. Hasilnya menunjukan bahwa setelah dilakukan kombinasi dari ketiga treatment maka efesiensi DSSC mampu meningkat dari 0,028% menjadi 0,040%.Kata Kunci: Dye Sensitized Solar Cell (DSSC); Photoelektroda, Double Layer; Kompresi Mekanik;Perendapam Ultrasonik; Efesiensi Solar SellAbstractDye Sensitized Solar Cell (DSSC) which is able to convert light into electrical energy by using Black Dye N-749 as a dye sensitizer and TiO2 semiconductor material as a photoelectrode has been conducted on 1 cm2 ITO glass area. In the process, photoelectrodes made by variations of single layer and double layer TiO2 which nanoparticles TiO2 as main/base layer and top/second layer is sub-microparticles. In the next process, photoelectrodes was given mechanical compression with a load of 25 kg/unit area. The last process, photoelectrode was dipping in N-749 extracts with ultrasonic process for 20 seconds. The results show that combination of variation DSSC can increase produces efficiency from 0.028% to 0.040%.Keywords: Dye Sensitized Solar Cell (DSSC); Photoelectrode, Double Layer; Mechanical Compresion;Ultrasonic Dipping; Solar Cell efficiency

SIGNIFICANCE OF SUBSTRATE TEMPERATURE ON ELECTRICAL CONDUCTIVITY, HALL EFFECT, AND THICKNESS OF BILAYER HETEROJUCTION ORGANIC SOLAR CELL USING RHODOMYRTUS TOMENTOSA (AITON) HASSK AND IXORA COCCINEA L DYE

2016 ◽  
Vol 78 (3) ◽  
Author(s):  
A. R. N. Laily ◽  
S. Hasiah ◽  
N. A. Nik Aziz ◽  
A. N. Dagang ◽  
M. S. M. Ghazali
Keyword(s):  
Thin Film ◽  
Electrical Conductivity ◽  
Solar Cell ◽  
Hall Effect ◽  
Indium Tin Oxide ◽  
Natural Dye ◽  
Layer By Layer ◽  
Ito Glass ◽  
Ixora Coccinea ◽  
Rhodomyrtus Tomentosa

In this work, Indium Tin oxide (ITO) glass used was 27˚C to 200˚C as substrate. The polymer used was Poly (3-Dodecylthiophene) (P3DT) thin film, Ixora coccinea L dan Rhodomyrtus tomentosa (Aiton) Hassk. as natural dye. The P3DT films were prepared using electrochemistry method at room temperature. Then, the natural dye was prepared layer by layer via spin coating method. Influence of heat treatment on the electrical properties and the efficiency of the system were investigated by Four Point Probes (FPP) under different light radiation (range of 0 Wm-2 to 200Wm-2), Hall Effect and thicknesss measurement. The electrical conductivity of the solar cell system increased with the increment of light radiations and the temperature of substrates. From Hall Effect measurement, the type of sample, Hall mobility, and highest charge carrier in the sample obtained. The thin film thickness was determined. The results show that the sample is suitable for further solar cell fabrications.

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