Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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Materials Map under construction

The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Umar, Ahmad

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Association de Recherche pour la Technologie et les Sciences

in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (9/9 displayed)

  • 2024Fabrication of Double Antireflection Layer of SiO<sub>2</sub>/SiN<sub>x</sub> via Spin Coating and Brush Painting for Enhanced Performance of Silicon Solar Cells2citations
  • 2024Synergistic performance of polyethersulfone membranes embedded with graphene oxide‐zinc oxide nanocomposites for efficient heavy metal and dye removal with strong antibacterial properties3citations
  • 2022Improving the performance of 2D perovskite solar cells by carrier trappings and minifying the grain boundaries19citations
  • 2020Reduced graphene/nanostructured cobalt oxide nanocomposite for enhanced electrochemical performance of supercapacitor applications102citations
  • 2020Surface Modification of Bentonite with Polymer Brushes and Its Application as an Efficient Adsorbent for the Removal of Hazardous Dye Orange I9citations
  • 2020Enhanced Photocatalytic Performance of Sn6SiO8 Nanoparticles and Their Reduced Graphene Oxide (rGO) Nanocomposite7citations
  • 2019Polydopamine-Based Surface Modification of ZnO Nanoparticles on Sericin/Polyvinyl Alcohol Composite Film for Antibacterial Application38citations
  • 2018Solar light driven photocatalytic degradation of levofloxacin using TiO2/carbon-dot nanocomposites106citations
  • 2017Application of pristine and doped SnO2 nanoparticles as a matrix for agro-hazardous material (organophosphate) detection23citations

Places of action

Chart of shared publication
Akhtar, M. Shaheer
2 / 3 shared
Choi, Jaeho
1 / 1 shared
Jung, In-Sung
1 / 1 shared
Fouad, Hassan
1 / 9 shared
Goyat, Rohit
1 / 1 shared
Singh, Joginder
1 / 2 shared
Saharan, Yajvinder
1 / 1 shared
Ibrahim, Ahmad A.
1 / 1 shared
Akbar, Sheikh
1 / 1 shared
Baskoutas, Sotirios
1 / 2 shared
Rubahn, Horst-Gunter
1 / 3 shared
Mishra, Yogendra Kumar
1 / 53 shared
Shkir, Mohd
1 / 1 shared
Kausik, Ajeet
1 / 1 shared
Ameen, Sadia
1 / 3 shared
Kim, Eun-Bi
1 / 3 shared
Marlinda, Ab Rahman
1 / 3 shared
Shahid, M. M.
1 / 2 shared
Fouad, H.
2 / 5 shared
Alothman, Othman Y.
1 / 4 shared
Johan, Mohd Rafie
1 / 5 shared
Khaled, Usama
1 / 3 shared
Sagadevan, Suresh
1 / 8 shared
Akhtar, M. S.
1 / 1 shared
Sharma, Shelja
1 / 2 shared
Mehta, Surinder Kumar
1 / 1 shared
Kansal, Sushil Kumar
1 / 1 shared
Ibhadon, Alex O.
1 / 2 shared
Ansari, Z. A.
1 / 1 shared
Athar, Taimur
1 / 1 shared
Ansari, S. G.
1 / 2 shared
Khan, Naushad
1 / 2 shared
Chart of publication period
2024
2022
2020
2019
2018
2017

Co-Authors (by relevance)

  • Akhtar, M. Shaheer
  • Choi, Jaeho
  • Jung, In-Sung
  • Fouad, Hassan
  • Goyat, Rohit
  • Singh, Joginder
  • Saharan, Yajvinder
  • Ibrahim, Ahmad A.
  • Akbar, Sheikh
  • Baskoutas, Sotirios
  • Rubahn, Horst-Gunter
  • Mishra, Yogendra Kumar
  • Shkir, Mohd
  • Kausik, Ajeet
  • Ameen, Sadia
  • Kim, Eun-Bi
  • Marlinda, Ab Rahman
  • Shahid, M. M.
  • Fouad, H.
  • Alothman, Othman Y.
  • Johan, Mohd Rafie
  • Khaled, Usama
  • Sagadevan, Suresh
  • Akhtar, M. S.
  • Sharma, Shelja
  • Mehta, Surinder Kumar
  • Kansal, Sushil Kumar
  • Ibhadon, Alex O.
  • Ansari, Z. A.
  • Athar, Taimur
  • Ansari, S. G.
  • Khan, Naushad
OrganizationsLocationPeople

article

Fabrication of Double Antireflection Layer of SiO<sub>2</sub>/SiN<sub>x</sub> via Spin Coating and Brush Painting for Enhanced Performance of Silicon Solar Cells

  • Umar, Ahmad
  • Akhtar, M. Shaheer
  • Choi, Jaeho
  • Jung, In-Sung
  • Fouad, Hassan
Abstract

This research investigates the optical, structural, and photovoltaic attributes of a dual antireflection (AR) layer deposition on crystalline silicon (c–Si) solar cells using second SiO2 layer on SiNx AR. The second SiO2 AR layer on a SiNx AR-based c–Si solar cell was fabricated utilizing both spin coating and brush painting techniques, resulting in a unique double (SiO2/SiNx) AR layer. The initial SiNx AR layer was deposited on the c–Si solar cell through plasma-enhanced chemical vapor deposition (PECVD), while the SiO2 layer was subsequently applied using two different methods such as spin coating at 5000 rpm for 20 s and brush painting, separately, on Si solar cell. The double (SiO2/SiNx) AR layer on the Si wafer exhibited a substantial reduction in average reflectance, approximately 6.02% through spin coating and 5.17% through brush painting, within the wavelength range of 400–1000 nm when compared to a textured silicon wafer. The fabricated solar cell featuring the double (SiO2/SiNx) AR layer, achieved a power conversion efficiency of 15.21% and 17.57% for spin coating and brush painting, respectively. The utilization of the double (SiO2/SiNx) AR layer through brush painting on the Si solar cell not only provided low reflectance but also demonstrated excellent surface properties, making it a promising candidate for the cost-effective fabrication of high-performance Si solar cells.

Topics
  • surface
  • Silicon
  • chemical vapor deposition
  • power conversion efficiency
  • spin coating