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http://bura.brunel.ac.uk/handle/2438/16584
Title: | Newly Synthesised Gadolinium bis-Phthalocyanine Sandwich Complex: Ambipolar Organic Semiconductor |
Authors: | Barard, S Kreouzis, T Cammidge, AN Cook, MJ Ray, AK |
Keywords: | Discotic liquid crystalline;time of flight;drift mobility;Poole-Frankel effect |
Issue Date: | 2018 |
Publisher: | IOP publishing |
Citation: | Semiconductor Science and Technology |
Abstract: | Time of flight (TOF) photocurrent transient studies on 5µm thick solution processed films of novel non-peripherally octa-octyl-substituted liquid crystalline gadolinium bis1,4,8,11,15,18,22,25-octakis(octyl) phthalocyanines (8GdPc2) provide a quantitative analysis of the intrinsic ambipolar charge transport relative to mesomorphic structure of this lanthanide compound. Characteristic liquid crystalline phases of these molecules have been identified from differential scanning calorimetry supported by observation from the UVvisible absorption, showing crystal-columnar mesophase and columnar mesophase-isotropic liquid transitions at 64.2°C and 162°C, respectively. The TOF carrier mobility is found to be structure dependent and highest values of 4.73×10−6m2 /Vs and 1.6×10−6m2 /Vs have been estimated for hole and electron mobilities for hexagonally packed, columnar structures of the spin-coated films. These results are exploitable for development of single molecule based all organic complimentary analogue and digital circuits with tunable field effect performance |
Description: | This is an author-created, un-copyedited version of an article accepted for publication/published in Semiconductor Science and Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://iopscience.iop.org/article/10.1088/1361-6641/aad42d |
URI: | http://bura.brunel.ac.uk/handle/2438/16584 |
ISSN: | 1361-6641 |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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FullText.pdf | This is an author-created, un-copyedited version of an article accepted for publication/published in Semiconductor Science and Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://iopscience.iop.org/article/10.1088/1361-6641/aad42d | 1.3 MB | Adobe PDF | View/Open |
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