Browsing by Subject "Conjugated polymers"
Now showing items 1-9 of 9
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Article
2-(2,3,4,5,6-Pentafluorophenyl)-1H-benzo[d]imidazole, a fluorine-rich building block for the preparation of conjugated polymer donors for organic solar cell applications
(2012)We have introduced the pentafluorophenyl substituted benzimidazole as a building block of conjugated polymers for optoelectronic applications. We present the synthesis of a copolymer bearing fluorene as the comonomer. A ...
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Article
Analysis of the excited-state absorption spectral bandshape of oligofluorenes
(2010)We present ultrafast transient absorption spectra of two oligofluorene derivatives in dilute solution. These spectra display a photoinduced absorption band with clear vibronic structure, which we analyze rigorously using ...
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Conference Object
Effect of molecular weight on the vibronic structure of a diketopyrrolopyrrole polymer
(SPIE, 2016)Resonance Raman Spectroscopy (RRS) is employed in this study to examine the influence of molecular weight on the optical response of a diketopyrrolopyrrole polymer (DPP-TT-T) in solution. The vibronic structure observed ...
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Article
Exploring the origin of high optical absorption in conjugated polymers
(2016)The specific optical absorption of an organic semiconductor is critical to the performance of organic optoelectronic devices. For example, higher light-harvesting efficiency can lead to higher photocurrent in solar cells ...
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Article
Inkjet printing processing conditions for bulk-heterojunction solar cells using two high-performing conjugated polymer donors
(2014)We report the processing conditions for inkjet-printed active layers of organic photovoltaic (OPV) devices comprising bulk-heterojunction blends of the low bandgap conjugated polymer poly[(4,4′-bis(2-ethylhexyl)dithieno[3,2-b: ...
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Article
New light from hybrid inorganic-organic emitters
(2008)We present the highlights of a research programme on hybrid inorganic-organic light emitters. These devices combine recent developments in III-V nitride technology (including UV emitting micro-arrays and specifically ...
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Article
Photovoltaic limitations of BODIPY:fullerene based bulk heterojunction solar cells
(2017)The photovoltaic performance of blends of a series of 4,4′-Difluoro-4-bora-3a,4a-diaza-s-indacenes)-based (BODIPY) conjugated polymers donors with fullerene electron acceptors is investigated. Despite the high Voc values ...
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Doctoral Thesis Open Access
Spectroscopic studies of molecular conformations of conjugated polymers for OPV applications
(Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2019-12)Τα οργανικά ηλεκτρονικά είναι ένας επιστημονικός κλάδος που προέκυψε ως μια ελκυστική εναλλακτική στην τεχνολογία πυριτίου λόγο του σημαντικά μειωμένου κόστους παραγωγής καθώς και κάποιων επιπλέον δυνατοτήτων που προσφέρουν ...
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Article
Ultrafast carrier dynamics on conjugated poly(3-hexylthiophene)/[6,6]- phenyl C61 -butyric acid methyl ester composites
(2007)The authors have studied ultrafast carrier dynamics on poly(3- hexylthiophene)/[6,6]- phenyl C61 -butyric acid methyl ester (PCBM) composites up to 50% PCBM concentration. They have resolved the exciton intraband relaxation ...