Electrical and optial properties of nanocomposited MEH-PPV: CNTs organic solar cell thin film

This rsearch focused on the clectrical and optical properties of nanocompositer MEH-PPV: CNTs organic solar cell thin flm with diffcrent composition ratio of CNTs. The project are focusing on adding 0 wt%, 1 wt%, 2 wi%, 3 wi% and 4 wt% of the CNTs in order to obserye the cffect on it. The toluene been used as solution to dissolve the MEH-PPV and CNTs. The thin film was deposited on 2cm x 2cm gless substrate by using spin coating techniquc. The clectrical properties characterize beer done by using two point probe solar simulator to measured the current-voltage cheracteristic. The optical properties of the thin film were characterized using UV. VIS/NIR spectrophotometer to observe the absorption and transmittance characteristic. The current-voltage was measure in two condition, which is in dark and illumination condition. The highest value of conductivity among the 5 concentratior is at 4wt% concentration of CNTs with 0.02738 Sm`l. The smaller optical band gap among the 5 concentration was recorded at 4wt% concentration of CNTs which is at 2.00eV.