Refine your search
Collections
Co-Authors
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
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 :225 |
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 :195 |
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
- J. R. Faleiro, “A review of the issues and management of the red palm weevil Rhynchophorus ferrugineus (Coleoptera: Rhynchophoridae) in coconut and date palm during the last one hundred years,” International Journal of Tropical Insect Science, vol. 26, no. 3, pp.135-154, 2006.
- J.-C. Ahomadegbe, M. Dollet, and G. Riou, “Kinetoplast DNA from plant trypanosomatids responsible for the Hartrot disease in coconut trees,” Biology of the Cell, vol. 74, pp. 273-279, 1992.
- J. Laine, and S. Yunes, “Effect of the preparation method on the pore size distribution of activated carbon from coconut shell,” Carbon, vol. 30, no. 4, pp. 601-604, 1992.
- L. L. Zhang, and X. S. Zhao, “Carbon-based materials as supercapacitor electrodes,” Chemical Society Reviews, vol. 38, no. 9, pp. 2520-2531, 2009.
- B. Li, X. Cao, H. G. Ong, J. W. Cheah, X. Zhou, Z. Yin, H. Li, J. Wang, F. Boey, W. Huang, and H. Zhang, “All-carbon electronic devices fabricated by directly grown single-walled carbon nanotubes on reduced graphene oxide electrodes,” Advanced Materials, vol. 22, no. 28, pp. 3058-3061, 2010.
- L. C. Olsen, F. W. Addis, and W. Miller, “Experimental and theoretical studies of Cu2O solar cells,” Solar Cells, vol. 7, no. 3, pp. 247-279, 1982.
- C. A. N. Fernando, P. H. C. De Silva, S. K. Wethasinha, I. M. Dharmadasa, T. Delsol, and M. C. Simmonds,“Investigation of n-type Cu2O layers prepared by a low cost chemical method for use in photo-voltaic thin film solar cells,” Renewable Energy, vol. 26, no. 4, pp. 521-529, 2002.
- C. A. N. Fernando, and S. K. Wetthasinghe, “Invest
- igation of photoelectrochemical characteristics of ntype Cu2O films,” Solar Energy Materials and Solar Cells, vol. 63, no. 3, pp. 299-308, 2000.
- Characterization of Supercapacitor Fabricated from Beli Fruit (Aegle Marmelos) Shell Activated Carbon for the First Time
Abstract Views :276 |
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
- C. J. Kirubakaran, K. Krishnaiah, and S. K. Seshadri, “Experimental study of the production of activated
- carbon from coconut shells in a fluidized bed reactor,” Industrial and Engineering Chemistry Research, vol.
- , no. 11, pp. 2411-2416, 1991.
- I. Abe, H. Tatsumoto, N. Ikuta, and I. Kawafune, “Preparation of activated carbon from pisthachio nut shell,” Chem. Exp, vol. 5, no. 3, pp. 177-180, 1990.
- A. Khan, H. Singh, and A. K. Bhatia, “Activated carbon from walnut shells,” Research and Industry, vol. 30, no.1, pp.13-16, 1985.
- K. Maniatis, and M. Nurmala, “Activated carbon production from biomass,” Biomass Energy Ind. Environ., vol. 274, pp. 1304-1308, 1992.
- Z. Xiongzun, Z. Famnao, L. Lie, and L. Qingrong, “A new technique to produce activated carbon (from saw dust of any humidity) by zinc chloride method,” J.Nanjing Inst. Forest, vol. 1, pp. 19-30, 1986.
- W. M. A. W. Daud, and W. S. W. Ali, “Comparison on pore development of activated carbon produced from palm shell and coconut shell,” Bioresource Technology, vol. 93, no. 1, pp. 63-69, 2004.
- R. Gottipati, and S. Mishra, “Process optimization of adsorption of Cr (VI) on activated carbons prepared from plant precursors by a two-level full factorial design,” Chemical Engineering Journal, vol. 160, no. 1, pp. 99-107, 2010.
- A. Aworn, P. Thiravetyan, and W. Nakbanpote, “Preparation and characteristics of agricultural waste activated carbon by physical activation having micro and mesopores,” Journal of Analytical and Applied Pyrolysis, vol. 82, no. 2, pp. 279-285, 2008.
- A. E. Sikaily, A. E. Nemr, A. Khaled, and O. Abdelwehab, “Removal of toxic chromium from waste-water using green alga Ulva lactuca and its activated carbon,” Journal of Hazardous Materials, vol. 148, no. 1, pp. 216-228, 2007.
- J. Jagiello, and J. P. Olivier, “Carbon slit pore model incorporating surface energetical heterogeneity and geo-metrical corrugation,” Adsorption, vol. 19, no. 2-4, pp.777-783, 2013.
- J. Jagiello, and J. P. Olivier, “2D-NLDFT adsorption models for carbon slit-shaped pores with surface energetical heterogeneity and geometrical corrugation,” Carbon, vol. 55, pp. 70-80, 2013.
- W. Wang, S. Guo, M. Penchev, I. Ruiz, K. N. Bozhilov, D. Yan, M. Ozkan, and C. S. Ozkan, “Three dimensional few layer graphene and carbon nanotube foam architectures for high fidelity supercapacitors,” Nano Energy, vol. 2, no. 2, pp. 294-303, 2013.
- B. K. Kim, S. Sy, A. Yu, and J. Zhang, “Electrochemical supercapacitors for energy storage and conversion,”Handbook of Clean Energy Systems, 2005.
- H. Zhang, V. V. Bhat, N. C. Gallego, and C. I. Contescu, “Thermal treatment effects on charge storage performance of graphene-based materials for supercapacitors,” ACS Applied Materials and Interfaces, vol. 4, no.6, pp. 3239-3246, 2012.
- K. H. An, W. S. Kim, Y. S. Park, J. M. Moon, D. J. Bae, S. C. Lim, Y. S. Lee, and Y. H. Lee, “Electrochemical properties of high-power supercapacitors using single-walled carbon nanotube electrodes,” Advanced Functional Materials, vol. 11, no. 5, pp. 387-392, 2001.
- Y. Wang, Z. Shi, Y. Huang, Y. Ma, C. Wang, M. Chen, and Y. Chen, “Supercapacitor devices based on graphene materials,” The Journal of Physical Chemistry C, vol. 113, no. 30, pp. 13103-13107, 2009.
- Y. Chen, Z. Hu, Y. Chang, H. Wang, G. Fu, X. Jin, and L. Xie, “Layered Al-substituted cobalt hydroxides / GO composites for electrode materials of supercapacitors,” Chinese Journal of Chemistry, vol. 29, no. 11, pp. 2257-2262, 2011.
- Enhance the Photocurrent of Cu/n-Cu2O Solid State Solar Cell Using Coconut Shell Activated Carbon (CAC) as Upper - Electrode
Abstract Views :207 |
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
- J. N. Nian, C. C. Hu, and H. Teng, “Electrodeposited p-type Cu2O for H2 evolution from photoelectrolysis of water under visible light illumination,” International Journal of Hydrogen Energy, vol. 33, no. 12, pp. 28972903, 2008.
- T. Mahalingam, J. S. P. Chitra, J. P. Chu, S. Velumani, and P. J. Sebastian, “Structural and annealing studies of potentiostatically deposited Cu2O thin films,” Solar Energy Materials and Solar Cells, vol. 88, no. 2, pp.209-216, 2005.
- B. P. Rai, “Cu2O Solar Cells: A Review,” Solar Cells, vol. 25, pp. 265-272, 1988.
- R. S. Toth, R. Kilkson, and D. Trivich, “Preparation of large area single-crystal cuprous oxide,” Journal of Applied Physics, vol. 31, no. 6, pp. 1117-1121, 1960.
- M. O’Keeffe, and W. J. Moore, “Electrical conductivity of monocrystalline cuprous oxide,” The Journal of Chemical Physics, vol. 35, no. 4, pp. 1324-1328, 1961.
- A. P. Young, and C. M. Schwartz, “Electrical conductivity and thermoelectric power of Cu2O,” Journal of Physics and Chemistry of Solids, vol. 30, no. 2, pp. 249252, 1969.
- H. L. McKinzie, and M. O’Keeffe, “High temperature hall effect in cuprous oxide,” Physics Letters A, vol. 24, no. 3, pp. 137-139, 1967.
- L. Wang, and M. Tao, “Fabrication and characterization of p-n homojunctions in cuprous oxide by electrochemical deposition,” Electrochemical and Solid-State Letters, vol. 10, no. 9, pp. H248-H250, 2007.
- C. A. N. Fernando, T. M. W. J. Bandara, and S. K.Wethasingha, “H2 evolution from a photoelectrochemical cell with n-Cu2O photoelectrode under visible light irradiation,” Solar Energy Materials and Solar Cells, vol. 70, no. 2, pp. 121-129, 2001.
- G.-W. Sun, C. Wang, L. Zhan, W.-M. Qiao, X.-Y. Liang, and L.-C. Ling, “Influence of high temperature treatment of activated carbon on performance of supercapacitors,” Journal of Materials Science and Engineering, vol. 2,no. 12, pp. 41-48, 2008.
- A. Kay, and M. Gratzel, “Low cost photovoltaic modules based on dye sensitized nanocrystalline titanium dioxide and carbon powder,” Solar Energy Materials and Solar Cells, vol. 44, no. 1, pp. 99-117, 1996.
- D. H. Jurcakova, M. Seredych, G. Q. Lu, and T. J. Bandosz, “Combined effect of nitrogen-and oxygencontaining functional groups of microporous activated carbon on its electrochemical performance in supercapacitors,” Advanced Functional Materials, vol. 19, no.3, pp. 438-447, 2009.
- A. Aygün, S. Y. Karakaş, and I. Duman, “Production of granular activated carbon from fruit stones and nutshells and evaluation of their physical, chemical and adsorption properties,” Microporous and Mesoporous Materials, vol. 66, no. 2, pp. 189-195, 2003.
- K. Imoto, K. Takahashi, T. Yamaguchi, T. Komura, J. I.Nakamura, and K. Murata, “High-performance carbon counter electrode for dye-sensitized solar cells,” Solar Energy Materials and Solar Cells, vol. 79, no. 4, pp. 459-469, 2003.
- Z. Huang, X. Liu, K. Li, D. Li, Y. Luo, H. Li, W. Song, L. Chen, and Q. Meng, “Application of carbon materials as counter electrodes of dye-sensitized solar cells,” Electrochemistry Communications, vol. 9, no. 4, pp.596-598, 2007.