viva izatul
DESCRIPTION
VIVA ATULTRANSCRIPT
Universiti Sains Malaysia,11800 USM, Pulau Pinang
Pusat Pengajian Sains FizikSchool of Physics
DEVELOPMENT OF SOLAR CELL BASED CARBON NANOTUBES
NAME : NURUL IZATUL BINTI KAMARUNCOURSE : APPLIED SCIENCE (PHYSICS)PROJECT : PROF.DR.KAMARULAZIZI IBRAHIMSUPERVISOR EXAMINER : DR.NG SHA SHIONGYEAR : 2015
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Fe70 %
C30 %
Al crucible Microwave 800 w
0.5 ml DMF solutionSonication process
30 minutes
Growth of Carbon Nanotubes
METHODOLOGY
Bench-top Ring Mill MechineZirconia container
2 hours
RCA cleaning
Solution 1 ( 75°C for 10 minutes )Solution 2 ( 15 – 20 seconds )Solution 3 ( 75°C for 10 minutes )
Annealing ProcessGray Furnace Chamber
gas400 °C 2 hours
Materialization Thermal Evaporator machine
Al contact7.5 x
Spin coating 1500 rpm 20 seconds
150 °C
Plasma treatment15 minutes
80 w
Development of Solar Cell
Annealing Process
Schottky Barrier graph Structure of the devices
DISCUSSION
Carbon Nanotubes
Raman Spectroscopy
Inner tube ( Fe ) : 270400 = 248. nm / ( MWCNT ) 392 = 248. nm /
=0.63 nm
Ferrocene
0.6602
ZETA potential machineDiameter Fe grind for 2 hours
Image of Fe on FESEM
CNTs
Raman Spectroscopy
outer tube : 150< 300 = 248. nm / ( MWCNT )
289 = 248. nm / = 0.86 nm
Notation Frequency ( )
Symmetry Type of Mode
( inner tube, Fe ) 392 A In phase radial displacment ( outer tube, CNTs) 289 A In phase radial displacmentG band 1582 A,, Graphite related optical mode band 2663 - Overtone of D band, high dispersive
D band 1334 - Defect induce, dispersive
Image CNTs on FESEM ( Fe grind 80 minutes )
Raman Spectroscopy data
FF / = /
FF = /
I-V measurement graph on Solar Cell Simulator System
Solar Cell
Performance Parameters
Measurement
(A) 0.00000148 (V) 0.22364
(Ω) 85137.5(Ω) 183411Fill Factor 0.386919
Power Parameters
Measurement
(A) 0.000000913 (V) 0.14Efficiency,η(%) 0.000128
I-V measurement data
CONCLUSION
Diameter
Ferrocene
Raman Spectroscopy = 0.63 nmZETA Potential Machine = 0.66 nm
Carbon Nanotubes
Raman Spectroscopy = 0.86 nm
• The diameter of Ferrocene should be less than 1 nm, thus the diameter of CNTs will be less than 10 nm.
• TEM and AFM measurement can be use to characterize the sizing of Ferrocene.• The more longer sonication process is done it will improve the growth of CNTs.
CONCLUSION
Efficiency
η ( efficiency solar cell ) = 0.000128%
• The voltage range : 0 V – 0.7 V• The Fill Factor value : 0.4 – 0.85• The best Fill Factor value is 70% to 85 %, cannot be 100% due to PN junction properties.• The value of and depend on input power.• The efficiency increases when the fill factor is increase.
THE END