Optical, Morphological and Electrical Properties of Silver and Aluminium Metallization Contacts for Solar Cells

Fekkai, Zakia; Mustapha, Nazir; Hennache, Ali

doi:10.11648/j.ajmp.20140302.13

Cited by 19 publications

(4 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Aluminium films used as metallization contacts have low specific resistivity, good thermal stability, high uniformity across the flat substrate, low particle contamination, and good adherence to substrate. These properties have led aluminium to be irreplaceable and its demand is on increase in many areas of today's rapidly developing technology especially optical industries [16]. Highly specular aluminium films made in an ultrahigh vacuum deposition process have a solar reflectance of 92%.…”

Section: Materials Processingmentioning

confidence: 99%

The Effect of Thickness of Aluminium Films on Optical Reflectance

Lugolole

Obwoya

2015

Journal of Ceramics

View full text Add to dashboard Cite

In Uganda and Africa at large, up to 90% of the total energy used for food preparation and water pasteurization is from fossil fuels particularly firewood and kerosene which pollute the environment, yet there is abundant solar energy throughout the year, which could also be used. Uganda is abundantly rich in clay minerals such as ball clay, kaolin, feldspar, and quartz from which ceramic substrates were developed. Aluminium films of different thicknesses were deposited on different substrates in the diffusion pump microprocessor vacuum coater (Edwards AUTO 306). The optical reflectance of the aluminium films was obtained using a spectrophotometer (SolidSpec-3700/DUV-UV-VIS-NIR) at various wave lengths. The analysis of the results of the study revealed that the optical reflectance of the aluminium films was above 50% and increased with increasing film thickness and wavelength. Thus, this method can be used to produce reflector systems in the technology of solar cooking and other appliances which use solar energy.

show abstract

Section: Materials Processingmentioning

confidence: 99%

The Effect of Thickness of Aluminium Films on Optical Reflectance

Lugolole

Obwoya

2015

Journal of Ceramics

View full text Add to dashboard Cite

show abstract

“…It has been reported that the surface roughness and work function of Ag metal films are very important to increase the stability and efficiency of electrical contacts of solar cell. The optical properties of Ag metal films are decreased and their surface roughness and adhesion to substrates are increased by heat treatment in air [22]. Also the heterojunction response to light is improved and stabilised upon annealing in air [23].…”

Section: Preparation Of Thin-film Solar Cell With P-n Heterojunctionmentioning

confidence: 99%

Synthesis and characterization of nanoparticles of semiconducting metal suplhide and their application

Darekar¹,

Praveen²

2022

Phys. Scr.

View full text Add to dashboard Cite

Cadmium Sulphide (CdS) [II-VI group n-type semiconductor] and Copper Sulphide (Cu2S) [I-VI group p-type semiconductor] have large commercial applications like solar cell, gas sensor etc. Wide band gap CdS semiconductor was used as the transparent window material together with narrow band gap Cu2S semiconductor used as the absorber layer. Thioglycerol capped CdS and Cu2S nanoparticles were synthesized by using the non-aqueous chemical method at room temperature. CdS and Cu2S films were prepared on fluorine doped tin oxide (FTO) glass substrates by using the simple dip coating method at different dip times and heat treated in air. CdS and Cu2S nanoparticles were analysed by Ultraviolet-Visible absorption spectroscopy, photoluminescence (PL) and transmission electron microscopy (TEM). CdS and Cu2S films were investigated by scanning electron microscopy (SEM), energy dispersive analysis by X-rays (EDAX), mapping and atomic force microscopy (AFM). Thicknesses of films were determined using laser profilometer. Previously, preparation of solar cells using CdS and Cu2S films deposited by dip coating method has not been reported. In this study, thin-film solar cells with p-n heterojunction having enhanced conductivity, excellent solar energy conversion efficiency, enhanced fill factor, low cost and easy fabrication were prepared to increase the quality of solar cells.

show abstract

“…The ITO has dual property in nature i.e., allow incident light to the photoactive layer in the visible spectrum range due to high work function and also collect carrier when used as an electrode [16]. On the other hand, Al has high reflectance at room temperature, low manufacturing cost, excellent thermal stability, low specific resistivity, acceptable adherence and uniformity along flat substrate [17]. Zinc oxide (ZnO) and titanium dioxide (TiO 2 ) materials, which have low resistivity, are used as window layer and electron transport layer (ETL) for better light transmission, high electron mobility and also act as hole blocking layer (HBL) to reduce the recombination losses.…”

Section: Device Modelingmentioning

confidence: 99%

Thin-Film Tandem Organic Solar Cells With Improved Efficiency

Farooq

Khan

et al. 2020

IEEE Access

View full text Add to dashboard Cite

Seeking high power conversion efficiency is always a striving pathway for many researchers to commercialize organic solar cells (OSCs). Thus, it is essential to achieve high conversion efficiency to make solar oriented devices as truly green energy resource. In this paper, we report novel tandem structures based on organic materials in which homo and hybrid schemes are utilized. The homo tandem structures involve the well-known organic materials such as P3HT: PCBM and PTB7: PCBM as top and bottom absorber layers, while the hybrid tandem structure is made by the combination of P3HT: PCBM and PTB7: PCBM, respectively. Due to different absorption coefficients, simulation results indicate that the hybrid tandem structure exhibit large values for current density J sc = 22.60mA/cm 2 , open circuit voltage V oc = 0.85V , fill factor FF = 68.21%, and efficiency η = 13.96%, compared to homo tandem cell and proves to be more efficient and highly stable towards high temperatures, which indicates that the proposed structure is more suitable for practical applications. INDEX TERMS Organic solar cell, tandem, homo, hybrid, efficiency.

show abstract

Optical, Morphological and Electrical Properties of Silver and Aluminium Metallization Contacts for Solar Cells

Cited by 19 publications

References 22 publications

The Effect of Thickness of Aluminium Films on Optical Reflectance

The Effect of Thickness of Aluminium Films on Optical Reflectance

Synthesis and characterization of nanoparticles of semiconducting metal suplhide and their application

Thin-Film Tandem Organic Solar Cells With Improved Efficiency

Contact Info

Product

Resources

About