Neck Barrier Engineering in Quantum Dot Dimer Molecules via Intra-Particle Ripening Article Swipe

View

Jiabin Cui , Somnath Koley , Yossef E. Panfil , Adar Levi , Yonatan Ossia , Nir Waiskopf , Sergei Remennik , Meirav Oded , Uri Banin ·

YOU? · · 2021 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2111.13061

Coupled colloidal quantum dot (CQD) dimers represent a new class of artificial molecules composed of fused core/shell semiconductor nanocrystals. The electronic coupling and wavefunction hybridization is enabled by the formation of an epitaxial connection with a coherent lattice between the shells of the two neighboring quantum dots where the shell material and its dimensions dictate the quantum barrier characteristics for the charge carriers. Herein we introduce a colloidal approach to control the neck formation at the interface between the two CQDs in such artificial molecular constructs. This allows the tailoring of the neck barrier in pre-linked homodimers formed via fusion of multifaceted wurtzite CdSe/CdS CQDs. The effects of reaction time, temperature and excess ligands is studied. The neck filling process follows an intraparticle ripening mechanism at relatively mild reaction conditions while avoiding inter-particle ripening. The degree of surface ligand passivation plays a key role in activating the surface atom diffusion to the neck region. The degree of neck filling strongly depends also on the initial relative orientation of the two CQDs, where homonymous plane attachment allows for facile neck growth, unlike the case of heteronymous plane attachment. Upon neck-filling, the observed red-shift of the absorption and fluorescence measured both for ensemble and single dimers, is assigned to enhanced hybridization of the confined wavefunction in CQD dimer molecules, as supported by quantum calculations. The fine tuning of the particle interface introduced herein provides therefore a powerful tool to further control the extent of hybridization and coupling in CQD molecules.

Related Topics

Concepts

Quantum dot Chemical physics Molecule Nanoparticle Chemistry Materials science Nanocrystal Nanotechnology Molecular physics Organic chemistry

Metadata

Type: preprint
Language: en
Landing Page: https://arxiv.org/pdf/2111.13061.pdf
OA Status: green
References: 3
OpenAlex ID: https://openalex.org/W3217600558

All OpenAlex metadata

Raw OpenAlex JSON

OpenAlex ID: https://openalex.org/W3217600558

Canonical identifier for this work in OpenAlex
DOI: https://doi.org/10.48550/arxiv.2111.13061

Digital Object Identifier
Title: Neck Barrier Engineering in Quantum Dot Dimer Molecules via Intra-Particle Ripening

Work title
Type: preprint

OpenAlex work type
Language: en

Primary language
Publication year: 2021

Year of publication
Publication date: 2021-11-25

Full publication date if available
Authors: Jiabin Cui, Somnath Koley, Yossef E. Panfil, Adar Levi, Yonatan Ossia, Nir Waiskopf, Sergei Remennik, Meirav Oded, Uri Banin

List of authors in order
Landing page: https://arxiv.org/pdf/2111.13061.pdf

Publisher landing page
Open access: Yes

Whether a free full text is available
OA status: green

Open access status per OpenAlex
OA URL: https://arxiv.org/pdf/2111.13061.pdf

Direct OA link when available
Concepts: Quantum dot, Chemical physics, Molecule, Nanoparticle, Chemistry, Materials science, Nanocrystal, Nanotechnology, Molecular physics, Organic chemistry

Top concepts (fields/topics) attached by OpenAlex
Cited by: 0

Total citation count in OpenAlex
References (count): 3

Number of works referenced by this work

Full payload

id	https://openalex.org/W3217600558
doi	https://doi.org/10.48550/arxiv.2111.13061
ids.doi	https://doi.org/10.48550/arxiv.2111.13061
ids.mag	3217600558
ids.openalex	https://openalex.org/W3217600558
fwci
type	preprint
title	Neck Barrier Engineering in Quantum Dot Dimer Molecules via Intra-Particle Ripening
biblio.issue
biblio.volume
biblio.last_page
biblio.first_page
topics[0].id	https://openalex.org/T10321
topics[0].field.id	https://openalex.org/fields/25
topics[0].field.display_name	Materials Science
topics[0].score	1.0
topics[0].domain.id	https://openalex.org/domains/3
topics[0].domain.display_name	Physical Sciences
topics[0].subfield.id	https://openalex.org/subfields/2505
topics[0].subfield.display_name	Materials Chemistry
topics[0].display_name	Quantum Dots Synthesis And Properties
topics[1].id	https://openalex.org/T12149
topics[1].field.id	https://openalex.org/fields/25
topics[1].field.display_name	Materials Science
topics[1].score	0.9918000102043152
topics[1].domain.id	https://openalex.org/domains/3
topics[1].domain.display_name	Physical Sciences
topics[1].subfield.id	https://openalex.org/subfields/2505
topics[1].subfield.display_name	Materials Chemistry
topics[1].display_name	Nanocluster Synthesis and Applications
topics[2].id	https://openalex.org/T10131
topics[2].field.id	https://openalex.org/fields/25
topics[2].field.display_name	Materials Science
topics[2].score	0.9878000020980835
topics[2].domain.id	https://openalex.org/domains/3
topics[2].domain.display_name	Physical Sciences
topics[2].subfield.id	https://openalex.org/subfields/2504
topics[2].subfield.display_name	Electronic, Optical and Magnetic Materials
topics[2].display_name	Gold and Silver Nanoparticles Synthesis and Applications
is_xpac	False
apc_list
apc_paid
concepts[0].id	https://openalex.org/C124657808
concepts[0].level	2
concepts[0].score	0.6422374844551086
concepts[0].wikidata	https://www.wikidata.org/wiki/Q1133068
concepts[0].display_name	Quantum dot
concepts[1].id	https://openalex.org/C159467904
concepts[1].level	1
concepts[1].score	0.6202815771102905
concepts[1].wikidata	https://www.wikidata.org/wiki/Q2001702
concepts[1].display_name	Chemical physics
concepts[2].id	https://openalex.org/C32909587
concepts[2].level	2
concepts[2].score	0.4793732464313507
concepts[2].wikidata	https://www.wikidata.org/wiki/Q11369
concepts[2].display_name	Molecule
concepts[3].id	https://openalex.org/C155672457
concepts[3].level	2
concepts[3].score	0.4559288024902344
concepts[3].wikidata	https://www.wikidata.org/wiki/Q61231
concepts[3].display_name	Nanoparticle
concepts[4].id	https://openalex.org/C185592680
concepts[4].level	0
concepts[4].score	0.43271127343177795
concepts[4].wikidata	https://www.wikidata.org/wiki/Q2329
concepts[4].display_name	Chemistry
concepts[5].id	https://openalex.org/C192562407
concepts[5].level	0
concepts[5].score	0.42220520973205566
concepts[5].wikidata	https://www.wikidata.org/wiki/Q228736
concepts[5].display_name	Materials science
concepts[6].id	https://openalex.org/C175854130
concepts[6].level	2
concepts[6].score	0.41957852244377136
concepts[6].wikidata	https://www.wikidata.org/wiki/Q98276914
concepts[6].display_name	Nanocrystal
concepts[7].id	https://openalex.org/C171250308
concepts[7].level	1
concepts[7].score	0.40220361948013306
concepts[7].wikidata	https://www.wikidata.org/wiki/Q11468
concepts[7].display_name	Nanotechnology
concepts[8].id	https://openalex.org/C41999313
concepts[8].level	1
concepts[8].score	0.36958613991737366
concepts[8].wikidata	https://www.wikidata.org/wiki/Q489328
concepts[8].display_name	Molecular physics
concepts[9].id	https://openalex.org/C178790620
concepts[9].level	1
concepts[9].score	0.0
concepts[9].wikidata	https://www.wikidata.org/wiki/Q11351
concepts[9].display_name	Organic chemistry
keywords[0].id	https://openalex.org/keywords/quantum-dot
keywords[0].score	0.6422374844551086
keywords[0].display_name	Quantum dot
keywords[1].id	https://openalex.org/keywords/chemical-physics
keywords[1].score	0.6202815771102905
keywords[1].display_name	Chemical physics
keywords[2].id	https://openalex.org/keywords/molecule
keywords[2].score	0.4793732464313507
keywords[2].display_name	Molecule
keywords[3].id	https://openalex.org/keywords/nanoparticle
keywords[3].score	0.4559288024902344
keywords[3].display_name	Nanoparticle
keywords[4].id	https://openalex.org/keywords/chemistry
keywords[4].score	0.43271127343177795
keywords[4].display_name	Chemistry
keywords[5].id	https://openalex.org/keywords/materials-science
keywords[5].score	0.42220520973205566
keywords[5].display_name	Materials science
keywords[6].id	https://openalex.org/keywords/nanocrystal
keywords[6].score	0.41957852244377136
keywords[6].display_name	Nanocrystal
keywords[7].id	https://openalex.org/keywords/nanotechnology
keywords[7].score	0.40220361948013306
keywords[7].display_name	Nanotechnology
keywords[8].id	https://openalex.org/keywords/molecular-physics
keywords[8].score	0.36958613991737366
keywords[8].display_name	Molecular physics
language	en
locations[0].id	mag:3217600558
locations[0].is_oa	True
locations[0].source.id	https://openalex.org/S4306400194
locations[0].source.issn
locations[0].source.type	repository
locations[0].source.is_oa	True
locations[0].source.issn_l
locations[0].source.is_core	False
locations[0].source.is_in_doaj	False
locations[0].source.display_name	arXiv (Cornell University)
locations[0].source.host_organization	https://openalex.org/I205783295
locations[0].source.host_organization_name	Cornell University
locations[0].source.host_organization_lineage	https://openalex.org/I205783295
locations[0].license
locations[0].pdf_url
locations[0].version	submittedVersion
locations[0].raw_type
locations[0].license_id
locations[0].is_accepted	False
locations[0].is_published	False
locations[0].raw_source_name	arXiv (Cornell University)
locations[0].landing_page_url	https://arxiv.org/pdf/2111.13061.pdf
locations[1].id	doi:10.48550/arxiv.2111.13061
locations[1].is_oa	True
locations[1].source.id	https://openalex.org/S4306400194
locations[1].source.issn
locations[1].source.type	repository
locations[1].source.is_oa	True
locations[1].source.issn_l
locations[1].source.is_core	False
locations[1].source.is_in_doaj	False
locations[1].source.display_name	arXiv (Cornell University)
locations[1].source.host_organization	https://openalex.org/I205783295
locations[1].source.host_organization_name	Cornell University
locations[1].source.host_organization_lineage	https://openalex.org/I205783295
locations[1].license
locations[1].pdf_url
locations[1].version
locations[1].raw_type	article-journal
locations[1].license_id
locations[1].is_accepted	False
locations[1].is_published
locations[1].raw_source_name
locations[1].landing_page_url	https://doi.org/10.48550/arxiv.2111.13061
indexed_in	datacite
authorships[0].author.id	https://openalex.org/A5038154663
authorships[0].author.orcid	https://orcid.org/0000-0003-3047-9852
authorships[0].author.display_name	Jiabin Cui
authorships[0].author_position	first
authorships[0].raw_author_name	Jiabin Cui
authorships[0].is_corresponding	False
authorships[1].author.id	https://openalex.org/A5082082650
authorships[1].author.orcid	https://orcid.org/0000-0002-6826-1501
authorships[1].author.display_name	Somnath Koley
authorships[1].author_position	middle
authorships[1].raw_author_name	Somnath Koley
authorships[1].is_corresponding	False
authorships[2].author.id	https://openalex.org/A5056197433
authorships[2].author.orcid	https://orcid.org/0000-0003-3423-3227
authorships[2].author.display_name	Yossef E. Panfil
authorships[2].author_position	middle
authorships[2].raw_author_name	Yossef E. Panfil
authorships[2].is_corresponding	False
authorships[3].author.id	https://openalex.org/A5076027895
authorships[3].author.orcid	https://orcid.org/0000-0002-4483-1573
authorships[3].author.display_name	Adar Levi
authorships[3].author_position	middle
authorships[3].raw_author_name	Adar Levi
authorships[3].is_corresponding	False
authorships[4].author.id	https://openalex.org/A5019049970
authorships[4].author.orcid	https://orcid.org/0009-0008-0590-2923
authorships[4].author.display_name	Yonatan Ossia
authorships[4].author_position	middle
authorships[4].raw_author_name	Yonatan Ossia
authorships[4].is_corresponding	False
authorships[5].author.id	https://openalex.org/A5027715324
authorships[5].author.orcid	https://orcid.org/0000-0002-8709-4024
authorships[5].author.display_name	Nir Waiskopf
authorships[5].author_position	middle
authorships[5].raw_author_name	Nir Waiskopf
authorships[5].is_corresponding	False
authorships[6].author.id	https://openalex.org/A5043619741
authorships[6].author.orcid	https://orcid.org/0000-0002-6408-5424
authorships[6].author.display_name	Sergei Remennik
authorships[6].author_position	middle
authorships[6].raw_author_name	Sergei Remennik
authorships[6].is_corresponding	False
authorships[7].author.id	https://openalex.org/A5020638221
authorships[7].author.orcid	https://orcid.org/0000-0002-7990-8438
authorships[7].author.display_name	Meirav Oded
authorships[7].author_position	middle
authorships[7].raw_author_name	Meirav Oded
authorships[7].is_corresponding	False
authorships[8].author.id	https://openalex.org/A5024489266
authorships[8].author.orcid	https://orcid.org/0000-0003-1698-2128
authorships[8].author.display_name	Uri Banin
authorships[8].author_position	last
authorships[8].raw_author_name	Uri Banin
authorships[8].is_corresponding	False
has_content.pdf	False
has_content.grobid_xml	False
is_paratext	False
open_access.is_oa	True
open_access.oa_url	https://arxiv.org/pdf/2111.13061.pdf
open_access.oa_status	green
open_access.any_repository_has_fulltext	False
created_date	2025-10-10T00:00:00
display_name	Neck Barrier Engineering in Quantum Dot Dimer Molecules via Intra-Particle Ripening
has_fulltext	False
is_retracted	False
updated_date	2025-11-06T06:51:31.235846
primary_topic.id	https://openalex.org/T10321
primary_topic.field.id	https://openalex.org/fields/25
primary_topic.field.display_name	Materials Science
primary_topic.score	1.0
primary_topic.domain.id	https://openalex.org/domains/3
primary_topic.domain.display_name	Physical Sciences
primary_topic.subfield.id	https://openalex.org/subfields/2505
primary_topic.subfield.display_name	Materials Chemistry
primary_topic.display_name	Quantum Dots Synthesis And Properties
cited_by_count	0
locations_count	2
best_oa_location.id	mag:3217600558
best_oa_location.is_oa	True
best_oa_location.source.id	https://openalex.org/S4306400194
best_oa_location.source.issn
best_oa_location.source.type	repository
best_oa_location.source.is_oa	True
best_oa_location.source.issn_l
best_oa_location.source.is_core	False
best_oa_location.source.is_in_doaj	False
best_oa_location.source.display_name	arXiv (Cornell University)
best_oa_location.source.host_organization	https://openalex.org/I205783295
best_oa_location.source.host_organization_name	Cornell University
best_oa_location.source.host_organization_lineage	https://openalex.org/I205783295
best_oa_location.license
best_oa_location.pdf_url
best_oa_location.version	submittedVersion
best_oa_location.raw_type
best_oa_location.license_id
best_oa_location.is_accepted	False
best_oa_location.is_published	False
best_oa_location.raw_source_name	arXiv (Cornell University)
best_oa_location.landing_page_url	https://arxiv.org/pdf/2111.13061.pdf
primary_location.id	mag:3217600558
primary_location.is_oa	True
primary_location.source.id	https://openalex.org/S4306400194
primary_location.source.issn
primary_location.source.type	repository
primary_location.source.is_oa	True
primary_location.source.issn_l
primary_location.source.is_core	False
primary_location.source.is_in_doaj	False
primary_location.source.display_name	arXiv (Cornell University)
primary_location.source.host_organization	https://openalex.org/I205783295
primary_location.source.host_organization_name	Cornell University
primary_location.source.host_organization_lineage	https://openalex.org/I205783295
primary_location.license
primary_location.pdf_url
primary_location.version	submittedVersion
primary_location.raw_type
primary_location.license_id
primary_location.is_accepted	False
primary_location.is_published	False
primary_location.raw_source_name	arXiv (Cornell University)
primary_location.landing_page_url	https://arxiv.org/pdf/2111.13061.pdf
publication_date	2021-11-25
publication_year	2021
referenced_works	https://openalex.org/W2132160740, https://openalex.org/W1998225687, https://openalex.org/W3147238620
referenced_works_count	3
abstract_inverted_index.a	7, 35, 66, 141, 233
abstract_inverted_index.an	31, 121
abstract_inverted_index.as	217
abstract_inverted_index.at	74, 125
abstract_inverted_index.by	27, 219
abstract_inverted_index.in	81, 94, 144, 213, 245
abstract_inverted_index.is	25, 114, 204
abstract_inverted_index.of	10, 14, 30, 41, 90, 100, 107, 136, 156, 167, 183, 192, 209, 225, 241
abstract_inverted_index.on	162
abstract_inverted_index.to	69, 150, 206, 236
abstract_inverted_index.we	64
abstract_inverted_index.CQD	214, 246
abstract_inverted_index.The	19, 105, 116, 134, 154, 222
abstract_inverted_index.and	22, 51, 111, 195, 201, 243
abstract_inverted_index.dot	3
abstract_inverted_index.for	59, 176, 199
abstract_inverted_index.its	52
abstract_inverted_index.key	142
abstract_inverted_index.new	8
abstract_inverted_index.the	28, 39, 42, 48, 55, 60, 71, 75, 78, 88, 91, 146, 151, 163, 168, 181, 189, 193, 210, 226, 239
abstract_inverted_index.two	43, 79, 169
abstract_inverted_index.via	98
abstract_inverted_index.CQDs	80
abstract_inverted_index.This	86
abstract_inverted_index.Upon	187
abstract_inverted_index.also	161
abstract_inverted_index.atom	148
abstract_inverted_index.both	198
abstract_inverted_index.case	182
abstract_inverted_index.dots	46
abstract_inverted_index.fine	223
abstract_inverted_index.mild	127
abstract_inverted_index.neck	72, 92, 117, 152, 157, 178
abstract_inverted_index.role	143
abstract_inverted_index.such	82
abstract_inverted_index.tool	235
abstract_inverted_index.with	34
abstract_inverted_index.(CQD)	4
abstract_inverted_index.CQDs,	170
abstract_inverted_index.CQDs.	104
abstract_inverted_index.class	9
abstract_inverted_index.dimer	215
abstract_inverted_index.fused	15
abstract_inverted_index.plane	173, 185
abstract_inverted_index.plays	140
abstract_inverted_index.shell	49
abstract_inverted_index.time,	109
abstract_inverted_index.where	47, 171
abstract_inverted_index.while	130
abstract_inverted_index.Herein	63
abstract_inverted_index.allows	87, 175
abstract_inverted_index.charge	61
abstract_inverted_index.degree	135, 155
abstract_inverted_index.dimers	5
abstract_inverted_index.excess	112
abstract_inverted_index.extent	240
abstract_inverted_index.facile	177
abstract_inverted_index.formed	97
abstract_inverted_index.fusion	99
abstract_inverted_index.herein	230
abstract_inverted_index.ligand	138
abstract_inverted_index.shells	40
abstract_inverted_index.single	202
abstract_inverted_index.tuning	224
abstract_inverted_index.unlike	180
abstract_inverted_index.Coupled	0
abstract_inverted_index.barrier	57, 93
abstract_inverted_index.between	38, 77
abstract_inverted_index.control	70, 238
abstract_inverted_index.depends	160
abstract_inverted_index.dictate	54
abstract_inverted_index.dimers,	203
abstract_inverted_index.effects	106
abstract_inverted_index.enabled	26
abstract_inverted_index.filling	118, 158
abstract_inverted_index.follows	120
abstract_inverted_index.further	237
abstract_inverted_index.growth,	179
abstract_inverted_index.initial	164
abstract_inverted_index.lattice	37
abstract_inverted_index.ligands	113
abstract_inverted_index.process	119
abstract_inverted_index.quantum	2, 45, 56, 220
abstract_inverted_index.region.	153
abstract_inverted_index.surface	137, 147
abstract_inverted_index.CdSe/CdS	103
abstract_inverted_index.approach	68
abstract_inverted_index.assigned	205
abstract_inverted_index.avoiding	131
abstract_inverted_index.coherent	36
abstract_inverted_index.composed	13
abstract_inverted_index.confined	211
abstract_inverted_index.coupling	21, 244
abstract_inverted_index.enhanced	207
abstract_inverted_index.ensemble	200
abstract_inverted_index.material	50
abstract_inverted_index.measured	197
abstract_inverted_index.observed	190
abstract_inverted_index.particle	227
abstract_inverted_index.powerful	234
abstract_inverted_index.provides	231
abstract_inverted_index.reaction	108, 128
abstract_inverted_index.relative	165
abstract_inverted_index.ripening	123
abstract_inverted_index.strongly	159
abstract_inverted_index.studied.	115
abstract_inverted_index.wurtzite	102
abstract_inverted_index.carriers.	62
abstract_inverted_index.colloidal	1, 67
abstract_inverted_index.diffusion	149
abstract_inverted_index.epitaxial	32
abstract_inverted_index.formation	29, 73
abstract_inverted_index.interface	76, 228
abstract_inverted_index.introduce	65
abstract_inverted_index.mechanism	124
abstract_inverted_index.molecular	84
abstract_inverted_index.molecules	12
abstract_inverted_index.red-shift	191
abstract_inverted_index.represent	6
abstract_inverted_index.ripening.	133
abstract_inverted_index.supported	218
abstract_inverted_index.tailoring	89
abstract_inverted_index.therefore	232
abstract_inverted_index.absorption	194
abstract_inverted_index.activating	145
abstract_inverted_index.artificial	11, 83
abstract_inverted_index.attachment	174
abstract_inverted_index.conditions	129
abstract_inverted_index.connection	33
abstract_inverted_index.core/shell	16
abstract_inverted_index.dimensions	53
abstract_inverted_index.electronic	20
abstract_inverted_index.homodimers	96
abstract_inverted_index.homonymous	172
abstract_inverted_index.introduced	229
abstract_inverted_index.molecules,	216
abstract_inverted_index.molecules.	247
abstract_inverted_index.pre-linked	95
abstract_inverted_index.relatively	126
abstract_inverted_index.attachment.	186
abstract_inverted_index.constructs.	85
abstract_inverted_index.neighboring	44
abstract_inverted_index.orientation	166
abstract_inverted_index.passivation	139
abstract_inverted_index.temperature	110
abstract_inverted_index.fluorescence	196
abstract_inverted_index.heteronymous	184
abstract_inverted_index.multifaceted	101
abstract_inverted_index.wavefunction	23, 212
abstract_inverted_index.calculations.	221
abstract_inverted_index.hybridization	24, 208, 242
abstract_inverted_index.intraparticle	122
abstract_inverted_index.nanocrystals.	18
abstract_inverted_index.neck-filling,	188
abstract_inverted_index.semiconductor	17
abstract_inverted_index.inter-particle	132
abstract_inverted_index.characteristics	58
cited_by_percentile_year
countries_distinct_count	0
institutions_distinct_count	9
citation_normalized_percentile.value	0.12862432
citation_normalized_percentile.is_in_top_1_percent	False
citation_normalized_percentile.is_in_top_10_percent	False