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Correction: Structural characterization of a polycrystalline epitaxially-fused colloidal quantum dot superlattice by electron tomography

Xiaolei Chu a, Hamed Heidari a, Alex Abelson b, Davis Unruh c, Chase Hansen c, Caroline Qian d, Gergely Zimanyi c, Matt Law *bde and Adam J. Moulé *a
aDepartment of Chemical Engineering, University of California, Davis, USA. E-mail: amoule@ucdavis.edu
bDepartment of Materials Science and Engineering, University of California, Irvine, CA 92697, USA. E-mail: matt.law@uci.edu
cDepartment of Physics, University of California, Davis, USA
dDepartment of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697, USA
eDepartment of Chemistry, University of California, Irvine, CA 92697, USA

Received 8th September 2020 , Accepted 8th September 2020

First published on 7th October 2020


Correction for ‘Structural characterization of a polycrystalline epitaxially-fused colloidal quantum dot superlattice by electron tomography’ by Xiaolei Chu et al., J. Mater. Chem. A, 2020, DOI: 10.1039/d0ta06704k.


The authors regret the following minor errors in the published article:

In Section 2.1 (Materials), two chemicals, lead iodide and ethanol, were accidentally omitted from the list. The revised text should read:

“Lead oxide (PbO, 99.999%), lead iodide (PbI2, 99.9985%, purchased from Alfa Aesar), oleic acid (OA, technical grade, 90%), diphenylphosphine (DPP, 98%), 1-octadecene (ODE, 90%), ethanol (99.5%, anhydrous), ethylene glycol (EG, 99.8%, anhydrous), acetonitrile (99.99%, anhydrous), hexanes (≥99%, anhydrous), toluene (99.8%, anhydrous), (3-mercaptopropyl)trimethoxysilane (3-MPTMS, 95%), and N,N-dimethylformamide (DMF, 99.8%, anhydrous) were purchased from Sigma Aldrich and used as received.”

In Section 2.9 (Mobility simulation), the text “where ν is a suitably chosen prefactor… final state of the hooping.59” should instead read as follows:

“where ν is an attempt frequency, chosen to be 1012 s−1, gij is the product of the initial density of states on QDi and the final density of states on QDj, and βij is the tunneling amplitude evaluated using the WKB approximation as

image file: d0ta90212h-t1.tif
Here Δx is the minimal surface separation of the QDs. m* is the effective mass of electrons in the tunneling medium, approximated as 0.05me, the effective mass of electrons in bulk PbSe. Evac is the vacuum energy level that is set to be zero as all other energy levels are defined relative to the vacuum. Eij is the tunneling energy, taken to be the average of the initial and final states of the tunneling transition: image file: d0ta90212h-t2.tif, where Ei and Ej are the energy levels of QDi and QDj.59

Finally, in Section 3.1 (SL unit cell and disorder), the text “with an average QD spacing of a along the chains and image file: d0ta90212h-t3.tif between the chains” should instead read: “with an average QD spacing of a along the chains and approximately image file: d0ta90212h-t4.tif between the chains”.

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.


This journal is © The Royal Society of Chemistry 2020