Formation of Perfect Superlattice with Aligned Plane Orientation of Colloidal PbS Quantum Dots

Fujimoto, Satoshi; Suetsugu, Fumimasa; Mukai, Kazuo

doi:10.7567/ssdm.2017.ps-15-02

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“…This is because many ligands are attached to the (111) plane of QDs and the planes easily bond to each other. 29,30) In this case, there are two possible directions perpendicular to the substrate: (110) or (111), as shown in Figs. 6(a) and 6(b).…”

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confidence: 99%

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Formation of superlattice with aligned plane orientation of colloidal PbS quantum dots

Mukai¹,

Fujimoto²,

Suetsugu³

2018

Jpn. J. Appl. Phys.

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We investigated a method of forming a perfect quantum dot (QD) superlattice, in which each QD has the same plane orientation, by depositing colloidal PbS QDs with clear facets in solution. QD facets were controlled by adjusting the synthesis temperature. X-ray evaluation showed that the crystal orientations of the film with QDs having clear facets were aligned. The slow deposition promoted this crystal alignment. The red shift of photoluminescence wavelength caused by the film formation was larger with QDs having facets than with spherical QDs, suggesting that the connection of the wave function between QDs was better so that the quantum size effect was further reduced.

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Section: Resultsmentioning

confidence: 99%

“…In this paper, we present new experimental data and discuss the details of our presentation at Solid State Devices and Materials, 2017. 29)…”

Section: Introductionmentioning

confidence: 99%

Formation of superlattice with aligned plane orientation of colloidal PbS quantum dots

Mukai¹,

Fujimoto²,

Suetsugu³

2018

Jpn. J. Appl. Phys.

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Formation of Perfect Superlattice with Aligned Plane Orientation of Colloidal PbS Quantum Dots

Cited by 1 publication

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Formation of superlattice with aligned plane orientation of colloidal PbS quantum dots

Formation of superlattice with aligned plane orientation of colloidal PbS quantum dots

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