PMID: 15245305Jul 13, 2004Paper

Polarization surface-charge density of single semiconductor quantum rods

Physical Review Letters
Rishikesh KrishnanTodd D Krauss

Abstract

Electrostatic force microscopy was used to determine that single CdSe quantum rods (QRs) have a permanent polarization surface-charge density, an unexpected observation for supposedly well-shaped particles. The surface charge results from a slight angle between the QR sides and the direction of internal electric polarization. By contrast, despite the large dipole moment expected for CdSe QRs, none was observed. The unavoidable presence of permanently charged surfaces on CdSe QRs has the potential to impede the development of novel devices incorporating these materials.

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Citations

Jul 22, 2015·Chemical Reviews·Sanjini U NanayakkaraJoseph M Luther
Jul 11, 2018·Reports on Progress in Physics·Liam CollinsBrian J Rodriguez
Aug 7, 2018·Advanced Materials·Zhaohui RenGaorong Han
Nov 9, 2006·Physical Chemistry Chemical Physics : PCCP·Daniel E GómezPaul Mulvaney
Mar 16, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Jianpu WangNeil C Greenham
Feb 9, 2005·Physical Review Letters·N Le ThomasM V Artemyev
Feb 12, 2009·ACS Nano·Zhiheng YuJohn Silcox
Jan 2, 2018·The Journal of Physical Chemistry. B·Austin M Barnes, Steven K Buratto
Nov 17, 2006·The Journal of Physical Chemistry. B·Siying WangCatherine H Crouch

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