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Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications
Published on: February 6, 2016
Precise control of InP quantum dot growth via recyclable indium adducts
Ashleigh J Cartlidge1, Theodore A Gazis1,2, Ufedo-Ojo Pitas1
1School of Chemical & Physical Sciences, Keele University, Newcastle-under-Lyme, ST5 5BG, UK. p.d.matthews@keele.ac.uk.
Abstract:
Indium phosphide is the most studied of the colloidal III-V QDs, with significant attention focused on the phosphorus source and/or reaction conditions to improve QD quality. Comparatively limited attention has been directed toward controlling the reactivity of the indium precursor. In this study we introduce an approach that utilizes recyclable triarylphosphine adducts of indium(III) chloride to selectively prepare InP QDs with absorption profiles spanning 419-620 nm. This control is achieved through careful choice of the triarylphosphine ligand, which changes the nature of the nucleation profile from continuous to burst.
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In engineering, the dot product of any two vectors is the product of the magnitudes of the vectors and the cosine of the angle between them. It is denoted by a dot symbol between the two vectors.
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