Photophysical and structural characterisation of in situ formed quantum dots
| العنوان: | Photophysical and structural characterisation of in situ formed quantum dots |
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| المؤلفون: | Sybille Allard, S. G. Ramkumar, Raffaello Mazzaro, Muhammad T. Sajjad, Ullrich Scherf, Kim-Julia Kass, Francesco Antolini, Ifor D. W. Samuel, Lenuta Stroea, Ashu K. Bansal |
| المساهمون: | Bansal, A.K., Antolini, F., Sajjad, M.T., Stroea, L., Mazzaro, R., Ramkumar, S.G., Kass, K.-J., Allard, S., Scherf, U., Samuel, I.D.W, EPSRC, European Commission, University of St Andrews. School of Physics and Astronomy, University of St Andrews. Condensed Matter Physics |
| المصدر: | Phys. Chem. Chem. Phys.. 16:9556-9564 |
| بيانات النشر: | Royal Society of Chemistry (RSC), 2014. |
| سنة النشر: | 2014 |
| مصطلحات موضوعية: | Photoluminescence, Materials science, General Physics and Astronomy, Quantum yield, Nanoparticle, Nanotechnology, CDSE, Energy-transfer, Physics and Astronomy (all), chemistry.chemical_compound, Devices, QD, Physical and Theoretical Chemistry, Organic-inorganic nanocomposites, QC, Nanocomposite, Cadmium selenide, Solar-cells, Precursors, Charge separation, QD Chemistry, Nanocrystals, Emitting polymers, QC Physics, Nanocrystal, chemistry, Quantum dot, Nanoparticles, Light emission |
| الوصف: | The authors acknowledge financial support from FP7 project “Laser Induced Synthesis of Polymeric Nanocomposite Materials and Development of Micro-patterned Hybrid Light Emitting Diodes (LED) and Transistors (LET)” – LAMP project (G.A. 247928). AKB and IDWS also acknowledge financial support from EPSRC Programme grant “Challenging the limits of photonics: Structured light” EP/J01771X/1. Conjugated polymer-semiconductor quantum dot (QD) composites are attracting increasing attention due to the complementary properties of the two classes of materials. We report a convenient method for in situ formation of QDs, and explore the conditions required for light emission of nanocomposite blends. In particular we explore the properties of nanocomposites of the blue emitting polymer poly[9,9-bis(3,5-di-tert-butylphenyl)-9H-fluorene] together with cadmium sulphide (CdS) and cadmium selenide (CdSe) precursors. We show the formation of emissive quantum dots of CdSe from thermally decomposed precursor. The dots are formed inside the polymer matrix and have a photoluminescence quantum yield of 7.5%. Our results show the importance of appropriate energy level alignment, and are relevant to the application of organic-inorganic systems in optoelectronic devices. Publisher PDF |
| وصف الملف: | ELETTRONICO; application/pdf |
| تدمد: | 1463-9084 1463-9076 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c80bfe3932cb3f679c41a1db5b1f68e4Test https://doi.org/10.1039/c4cp00727aTest |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....c80bfe3932cb3f679c41a1db5b1f68e4 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14639084 14639076 |
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