Photophysical and structural characterisation of in situ formed quantum dots
Bansal, AK, Antolini, F, Sajjad, T, Stroea, L, Mazzaro, R, Ramkumar, SG, Kass, K-J, Allard, S, Scherf, U and Samuel, IDW (2014). Photophysical and structural characterisation of in situ formed quantum dots. Physical Chemistry Chemical Physics. 16 (20), pp. 9556-9564.
|Authors||Bansal, AK, Antolini, F, Sajjad, T, Stroea, L, Mazzaro, R, Ramkumar, SG, Kass, K-J, Allard, S, Scherf, U and Samuel, IDW|
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.
|Journal||Physical Chemistry Chemical Physics|
|Journal citation||16 (20), pp. 9556-9564|
|Publisher||Royal Society of Chemistry|
|Digital Object Identifier (DOI)||doi:https://www.doi.org/10.1039/C4CP00727A|
|11 Apr 2014|
|Online||11 Apr 2014|
|Publication process dates|
|Accepted||01 Apr 2014|
|Deposited||04 Feb 2020|
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