Effect of nano particle sizes on the third-order optical non-linearities and nanostructure of copolymer P3HT:PCBM thin film for organic photovoltaics

Journal Article · Fri Apr 15 00:00:00 EDT 2016 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2016.01.005· OSTI ID:22581518

Ajeel, Khalid I. ^[1]; Lazim, Haidar Gazy ^[2]

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1. Basrah University, Education College for Pure Sciences, Physics Department, Basrah (Iraq)
2. Misan University, Basic Education College, Science Department, Misan (Iraq)

Highlights: • Active layer (P3HT:PCBM) has been deposited on substrate type by spin coating at 1000 rpm. • The device was completed by evaporating a 60 nm thick, circular gold electrodes onto the P3HT:PCBM. • Nonlinear refractive indices of the three particle sizes are found to be of the order of 10{sup −7} cm{sup 2}/W - Abstract: Organic solar cells are based on (3-hexylthiophene):[6,6]-phenyl C61-butyric acid with methyl ester Bulk Heterojunction. An inverted structure has been fabricated using nano-anatase crystalline titanium dioxide, as the electron transport layer, which was prepared on either the Indium Tin Oxide coated glass (ITO—glass), or Silicon wafer, as well as on glass substrates by the sol–gel method, at different spin speed, using the spin-coating system. The effect of thickness on the surface morphology and on the optical properties of TiO{sub 2} layer, was investigated using the Atomic Force Microscopy (AFM), X-ray diffraction, and UV–visible spectrophotometer. The samples were examined to feature currents and voltages, in the darkness and light extraction efficiency of the solar cell. The highest open-circuit voltage, V{sub oc}, and power conversion efficiency were 0.66% and 0.39%, fabricated with 90 nm, respectively. The non-linear optical properties of nano-anatase TiO{sub 2} sol–gel, were investigated at different particle sizes, using the z-scan technique.

• OSTI ID: 22581518
• Journal Information: Materials Research Bulletin, Vol. 76; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ATOMIC FORCE MICROSCOPY
BUTYRIC ACID
COPOLYMERS
GOLD
HETEROJUNCTIONS
INDIUM COMPOUNDS
NANOSTRUCTURES
ORGANIC SOLAR CELLS
PARTICLE SIZE
PARTICLES
PHOTOVOLTAIC EFFECT
REFRACTIVE INDEX
SILICON
SOL-GEL PROCESS
SPIN-ON COATING
THIN FILMS
TIN OXIDES
TITANIUM OXIDES
X RADIATION
X-RAY DIFFRACTION