Optical and morphological properties of chemically synthesized poly3-octylthiophene thin films

López-Mata, C.; Nicho, M.E.; Hu, Hailin; Cadenas‐Pliego, Gregorio; García-Hernández, Edgar

doi:10.1016/j.tsf.2005.04.059

Cited by 33 publications

(31 citation statements)

References 9 publications

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“…Conjugated polymers such as P3OT have been extensively studied [1][2][3][4][5][6][7][8][9][10][11][12][13][14] as promising materials for applications in lightemitting diodes, displays, solar cells or other optoelectronic devices due to their processability, flexibility and low production costs. On the other hand, many important aspects of the electronic and optical properties of these materials are still not fully resolved [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…The advantage of a soluble conducting polymer is evident for application purpose. Like many polyalkylthiophenes (PATs), P3OT can be obtained as thin films by electrochemical polymerization of 3-octylthiophene (3OT) [13].…”

Section: Introductionmentioning

confidence: 99%

“…These tubes are proposed to be either metallic or semiconducting depending on their spiral conformation and diameter, making them ideal reinforcing fillers composite materials [14]. Additionally, the unique electronic and mechanical properties of carbon nanotubes (CNTs) have shown a lot of potential for a vast range of applications, including quantum wire for scanning probe microscopy and molecular diodes [12][13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…They show potential for electronic device applications promising to greatly enhance transport properties in these systems. This is thought to be a key issue for the realization of viable devices such as organic light emitting diodes and solar cells [12][13][14][15][16][17]. Despite of the extensive researches on these composites, still more researches need due to the following reasons: (a) practical advantages of CNT-polymer composites is the case in the preparation of products with shapes and patterns by using simple processing technology and hence reduces the manufacturing costs and (b) their electronic and optical properties are still not fully resolved [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Physical characterizations of semi-conducting conjugated polymer-CNTs nanocomposites

2012

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Carbon nanotubes (CNTs) were prepared using Alcholic Catalyst Chemical Vapor Deposition (ACCVD) technique in order to investigate the effects of their addition on the optical, electrical and mechanical properties of Poly (3-octylthiophene-2,5-diyl) (P3OT) matrix. The absorption spectra of the prepared CNTs and CNT-P3OT nanocomposites were measured in the spectral range 200 nm-3,000 nm at room temperature. The optical energy gap was determined from the obtained UV/Vis absorption spectrum. Optical results reveal that the prepared CNTs are almost single walled. Besides, the addition of CNTs to P3OT polymer matrix will decrease the optical energy gap and enhance the optical absorbance of P3OT matrix. On the other hand, the addition of CNTs to P3OT matrix will increase the electrical conductivity of P3OT matrix up to four orders of magnitude above the percolation threshold (0.44 wt% CNTs). Additionally, I-V characteristics indicate that the conduction mechanism is Ohmic at low applied voltage range while it is due to the trap charge limited at high applied voltage range. Furthermore, the behavior of dc conductivity with temperature was also investigated and the obtained results reveal that the activation energy decreases with CNTs content. Finally, mechanical results reveal that the elastic modulus values increase with the increasing of CNTs content in P3OT matrix.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Physical characterizations of semi-conducting conjugated polymer-CNTs nanocomposites

2012

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“…In our paper we present optical and thermooptical properties of polythiophenes whose representatives is poly (3-hexylthiophene)-P3HT (Lee et al 2010) and and poly3octylthiophene) P3OT (Lopez-Mata et al 2005). The chemical structure of P3HT and P3OT are shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Thermo-optical properties of conducted polythiophene polymer films used in electroluminescent devices

Jaglarz

Nosidlak

Wolska³

2016

Opt Quant Electron

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In this paper we present results of ellipsometric studies of thin organic poly3hexylthiophene-(P3HT) and poly-3octylthiophene (P3OT) films performed in temperature range 20-300°C. The optical dispersion spectra of refractive and extinction indices of presented organic films was determined in wavelength range 190-1700 nm for temperatures within in a given range. Also thermo-ellipsometric investigations allowed to find temperature dependence on film thickness. The determination of thermal changes of thickness and refractive index allowed us to calculate thermo-optical coefficients (TOC) for P3HT and P3OT layers for many wavelengths in measured spectral range. The obtained values of thermo-optical coefficients of thin P3HT layers, determined from combined ellipsometric and spectro-photometric investigations, are negative in visible part of spectral range of the order of 10 -4 [1/K] .

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Emission spectroscopic analysis of poly(3‐octyl thiophene) exposed to plasmas

Rodrı́guez-Lazcano

Martı́nez

2007

J of Applied Polymer Sci

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Emission spectroscopy was employed to study reaction process of poly(3-octyl thiophene) (P3OT) exposed to helium, nitrogen, air and hydrogen plasmas. The plasma was generated by an AC discharge at a pressure of 2 3 10 22 Pa. The discharge power was maintained at an output of 220 V and a current of 0.2 A. The light emitted was monitored in the case of each plasma. Measurements at various discharge times were made of several emission peaks. The dominant emission bands were assigned to CH 2 at 589.32 nm, S 2 (B 3 S u 2 -X 3 S g 2 ) at 413.35 nm, CH 1 (A 1 P-X 1 S) at 422.51 nm and C 3 H 3 at 344.02 nm.These dominant emission bands indicate that the poly(3-octyl thiophene) was decomposed by plasma interaction. Nevertheless, the reaction between the polymer and nitrogen, hydrogen and air plasmas is more intense than that in the helium plasma. The possible reaction channels and formation mechanisms of some species produced are discussed.

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Optical and morphological properties of chemically synthesized poly3-octylthiophene thin films

Cited by 33 publications

References 9 publications

Physical characterizations of semi-conducting conjugated polymer-CNTs nanocomposites

Physical characterizations of semi-conducting conjugated polymer-CNTs nanocomposites

Thermo-optical properties of conducted polythiophene polymer films used in electroluminescent devices

Emission spectroscopic analysis of poly(3‐octyl thiophene) exposed to plasmas

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