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Perera, N. W. P. S.
- Enhance Photocurrent of Cu/n-Cu2O/p-CuI Solid State Solar Cell Using Bamboo Activated Carbon (BAC) as Upper-Electrode
Abstract Views :318 |
PDF Views:2
Authors
N. W. P. S. Perera
1,
R. D. A. A. Rajapaksha
1,
C. A. N. Fernando
1,
S. A. Ariadurai
2,
M. V. W. Samarakody
3
Affiliations
1 Nano-Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Kuliyapitiya, LK
2 Department of Textile and Apparel Technology, Open University of Sri Lanka, Nawala, Nugegoda, LK
3 Nano-Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Kuliyapitiya, IN
1 Nano-Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Kuliyapitiya, LK
2 Department of Textile and Apparel Technology, Open University of Sri Lanka, Nawala, Nugegoda, LK
3 Nano-Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Kuliyapitiya, IN
Source
Journal of Scientific and Technical Research (Sharda University, Noida), Vol 6, No 2 (2016), Pagination: 1-4Abstract
Bamboo is a natural vegetable fibre originated from the tropical and sub-tropical countries. In this research, alkaline-bio scoured raw bamboo fibre powder was subjected to alkaline one step pyrolysis activation by using KOH. The bamboo carbon powder was fed into a tube furnace with a ramping rate of 10°C min-1 until the temperature reached at 360°C and dwell time 15 min for N2 atmosphere. Subsequently they were cooled to room temperature. A thin film of n-Cu2O was fabricated by boiling a well cleaned Copper sheet in a 5x10-3M CuSO4 solution inside an ultrasonic bath at 60°C for 50 min. There after thin layer of colloidal CuI was deposited on the n-Cu2O layer. BAC was placed on n-Cu2O/p-CuI and ITO conductive glass plate was placed to fabricate Cu/ Cu2O/BAC/ITO solid state photovoltaic cell. BAC acts as an upper electrode; separate photo generated charge carriers and enhanced photocurrent. Mean Particle size distribution curves, Absorption spectra, Photocurrent action spectra and time development of photocurrent were used from this study.Keywords
Bamboo Activated Carbon (BAC), N-cu2o, P-CUI, Thin Film Solid State Solar Cell.
- Novel Solid State Solar Cell made from n-Cu2O Using One Step Pyrolysis Coconut Shell Powder Activated Carbon as Upper - Electrode
Abstract Views :278 |
PDF Views:4
Authors
Affiliations
1 Nano Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Kuliyapitiya, LK
1 Nano Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Kuliyapitiya, LK
Source
Journal of Scientific and Technical Research (Sharda University, Noida), Vol 7, No 1 (2017), Pagination: 10-13Abstract
Coconut trees are distributed throughout many parts of the world, normally in the Asia-Pacific and South Asian region. It grows primarily in tropical and coastal areas. Activated carbon was prepared by one step pyrolysis by treating with 0.1 M KOH of scoured coconut shell ball billed micro particles at 364 °C heat rate of 10 cm-1 in the nitrogen atmosphere for 0.15 h then washed with HCl. Iodine number was determined to all dried activated carbon samples. Powder activated carbon was characterized with SEM and proximate analysis. The copper plate was fabricated by using a thin film of Cu2O which is formed by boiling (510-3 M) solution of copper sulphate for 60 min. After a solid state photo-voltaic cell Cu/n-Cu2O/CAC/ITO were produced have CAC acts as the upper electrode of the solid state solar cells. It was formed that n-Cu2O/CAC contact forme schottky barrier junction to separate photo generated charge carriers, forming a solid state photovoltaic device. UV Absorption spectra, FTIR spectra. V-I characteristics and photo-current development with time were used to compare photo-voltaic characteristics of solid state thin film solar cell from this work.Keywords
Ball Mill, Coconut Shell, One Step Pyrolysis, Thin Film Solar Cell.References
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- Characterization of Supercapacitor Fabricated from Beli Fruit (Aegle Marmelos) Shell Activated Carbon for the First Time
Abstract Views :387 |
PDF Views:4
Authors
Affiliations
1 Nano Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Kuliyapitiya, LK
1 Nano Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Kuliyapitiya, LK
Source
Journal of Scientific and Technical Research (Sharda University, Noida), Vol 7, No 1 (2017), Pagination: 20-25Abstract
We developed activated carbon from the Aegle marmelos fruit shell also known as Beli. Firstly, its carbonaceous process is done by a typical process. H3PO4 treatment was used to activate the carbonaceous material. Activated material is characterized by using Scanning Electron Microscope and Brunauer-Emmett-Teller (BET) specific surface areas. Calculated BET surface area of the fabricated supercapacitor is 517 m2/g. Electrochemical characterization was carried out through cyclic voltammetry, charge/discharge and electrochemical impedance spectro-scopy. Highest specific capacitance of 59 F/g and energy density of 8.19 kW/h for highest specific capacitance was obtained from the charge discharge curve. Obtained equivalent serial resistance is 0.414 Ω from equivalent circuit.Keywords
Activated Carbon, Beli Fruit Shell, Specific Capacitance, Supercapacitors.References
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- Enhance the Photocurrent of Cu/n-Cu2O Solid State Solar Cell Using Coconut Shell Activated Carbon (CAC) as Upper - Electrode
Abstract Views :310 |
PDF Views:4
Authors
Affiliations
1 Nano Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Kuliyapitiya, LK
1 Nano Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Kuliyapitiya, LK
Source
Journal of Scientific and Technical Research (Sharda University, Noida), Vol 7, No 1 (2017), Pagination: 32-35Abstract
Coconut shells are used for production of activated carbon. In this research, alkaline-bio scoured coconut shell powder was subjected to one step pyrolysis activation by using Phosphoric acid. The acid treated coconut shell particles were fed into a tube furnace with a heating rate of 10 °C min-1 until the temperature reached at 360 °C and dwell time 15 min in N2 atmosphere. Next, they were cooled into room temperature. A thin film of n-Cu2O was fabricated by immersing a well cleaned copper sheet in a 10-3 M HCl solution for 60 h. CAC was placed on Cu/n-Cu2O substrate and ITO conductive glass plate was placed to fabricate Cu/n-Cu2O/CAC/ITO solid state photovoltaic cell. Here, CAC acts as an upper electrode, separate photo-generated charge carriers and enhance photocurrent. BET surface area analysis, diffuse reflectance spectra, photocurrent action spectra, time development of photocurrent and SEM morphology were used to analyse the prepared samples.Keywords
Activated Carbon, BET, Coconut Shell, n-Cu2O.References
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