The intentional incorporation of transition metal impurities into colloidal semiconductor nanocrystals allows an extension of the host material’s functionality. While dopant incorporation has been extensively investigated in zero-dimensional quantum dots, the substitutional replacement of atoms in two-dimensional (2D) nanostructures by magnetic dopants has been reported only recently. Here, we demonstrate the successful incorporation of Co2+ ions into the shell of CdSe/CdS core/shell nanoplatelets, using these ions (i) as microscopic probes for gaining distinct structural insights and (ii) to enhance the magneto-optical functionality of the host material. Analyzing interatomic Co2+ ligand field transitions, we conclude that Co2+ is incorporated into lattice sites of the CdS shell, and effects such as diffusion of dopants into the CdSe core or diffusion of the dopants out of the heterostructure causing self-purification play a minor role. Taking advantage of the absorption-based technique of magnetic circular dichroism, we directly prove the presence of sp-d exchange interactions between the dopants and the band charge carriers in CdSe/Co2+:CdS heteronanoplatelets. Thus, our study not only demonstrates magneto-optical functionality in 2D nanocrystals by Co2+ doping but also shows that a careful choice of the dopant type paves the way for a more detailed understanding of the impurity incorporation process into these novel 2D colloidal materials.
REFERENCES
1.
S.
Ithurria
and B.
Dubertret
, “Quasi 2D colloidal CdSe platelets with thicknesses controlled at the atomic level
,” J. Am. Chem. Soc.
130
(49
), 16504
–16505
(2008
).2.
S.
Ithurria
, M. D.
Tessier
, B.
Mahler
, R. P. S. M.
Lobo
, B.
Dubertret
, and A. L.
Efros
, “Colloidal nanoplatelets with two-dimensional electronic structure
,” Nat. Mater.
10
(12
), 936
–941
(2011
).3.
M. D.
Tessier
, C.
Javaux
, I.
Maksimovic
, V.
Loriette
, and B.
Dubertret
, “Spectroscopy of single CdSe nanoplatelets
,” ACS Nano
6
(8
), 6751
–6758
(2012
).4.
C.
Bouet
, M. D.
Tessier
, S.
Ithurria
, B.
Mahler
, B.
Nadal
, and B.
Dubertret
, “Flat colloidal semiconductor nanoplatelets
,” Chem. Mater.
25
(8
), 1262
–1271
(2013
).5.
A.
Yeltik
, S.
Delikanli
, M.
Olutas
, Y.
Kelestemur
, B.
Guzelturk
, and H. V.
Demir
, “Experimental determination of the absorption cross-section and molar extinction coefficient of colloidal CdSe nanoplatelets
,” J. Phys. Chem. C
119
(47
), 26768
–26775
(2015
).6.
A. W.
Achtstein
, A.
Antanovich
, A.
Prudnikau
, R.
Scott
, U.
Woggon
, and M.
Artemyev
, “Linear absorption in CdSe nanoplates: Thickness and lateral size dependency of the intrinsic absorption
,” J. Phys. Chem. C
119
(34
), 20156
–20161
(2015
).7.
M.
Nasilowski
, B.
Mahler
, E.
Lhuillier
, S.
Ithurria
, and B.
Dubertret
, “Two-dimensional colloidal nanocrystals
,” Chem. Rev.
116
(18
), 10934
–10982
(2016
).8.
R.
Scott
, J.
Heckmann
, A. V.
Prudnikau
, A.
Antanovich
, A.
Mikhailov
, N.
Owschimikow
, M.
Artemyev
, J. I.
Climente
, U.
Woggon
, N. B.
Grosse
et al, “Directed emission of CdSe nanoplatelets originating from strongly anisotropic 2D electronic structure
,” Nat. Nanotechnol.
12
(12
), 1155
–1160
(2017
).9.
D.
Norris
, A.
Efros
, M.
Rosen
, and M.
Bawendi
, “Size dependence of exciton fine structure in CdSe quantum dots
,” Phys. Rev. B
53
(24
), 16347
–16354
(1996
).10.
Semiconductor Nanocrystal Quantum Dots
, edited by A. L.
Rogach
(Springer Vienna
, Vienna
, 2008
).11.
Nanocrystal Quantum Dots
, 2nd ed., edited by V. I.
Klimov
(CRC Press
, Boca Raton, FL, USA
, 2010
).12.
S.
Ithurria
and D. V.
Talapin
, “Colloidal atomic layer deposition (c-ALD) using self-limiting reactions at nanocrystal surface coupled to phase transfer between polar and nonpolar media
,” J. Am. Chem. Soc.
134
(45
), 18585
–18590
(2012
).13.
B.
Mahler
, B.
Nadal
, C.
Bouet
, G.
Patriarche
, and B.
Dubertret
, “Core/shell colloidal semiconductor nanoplatelets
,” J. Am. Chem. Soc.
134
(45
), 18591
–18598
(2012
).14.
M. D.
Tessier
, P.
Spinicelli
, D.
Dupont
, G.
Patriarche
, S.
Ithurria
, and B.
Dubertret
, “Efficient exciton concentrators built from colloidal core/crown CdSe/CdS semiconductor nanoplatelets
,” Nano Lett.
14
(1
), 207
–213
(2014
).15.
Y.
Kelestemur
, M.
Olutas
, S.
Delikanli
, B.
Guzelturk
, M. Z.
Akgul
, and H. V.
Demir
, “Type-II colloidal quantum wells: CdSe/CdTe core/crown heteronanoplatelets
,” J. Phys. Chem. C
119
(4
), 2177
–2185
(2015
).16.
S.
Pedetti
, S.
Ithurria
, H.
Heuclin
, G.
Patriarche
, and B.
Dubertret
, “Type-II CdSe/CdTe core/crown semiconductor nanoplatelets
,” J. Am. Chem. Soc.
136
(46
), 16430
–16438
(2014
).17.
S.
Delikanli
, B.
Guzelturk
, P. L.
Hernández-Martínez
, T.
Erdem
, Y.
Kelestemur
, M.
Olutas
, M. Z.
Akgul
, and H. V.
Demir
, “Continuously tunable emission in inverted type-I CdS/CdSe core/crown semiconductor nanoplatelets
,” Adv. Funct. Mater.
25
(27
), 4282
–4289
(2015
).18.
A.
Polovitsyn
, Z.
Dang
, J. L.
Movilla
, B.
Martín-García
, A. H.
Khan
, G. H. V.
Bertrand
, R.
Brescia
, and I.
Moreels
, “Synthesis of air-stable CdSe/ZnS core–shell nanoplatelets with tunable emission wavelength
,” Chem. Mater.
29
(13
), 5671
–5680
(2017
).19.
M. D.
Tessier
, B.
Mahler
, B.
Nadal
, H.
Heuclin
, S.
Pedetti
, and B.
Dubertret
, “Spectroscopy of colloidal semiconductor core/shell nanoplatelets with high quantum yield
,” Nano Lett.
13
(7
), 3321
–3328
(2013
).20.
Z.
Chen
, B.
Nadal
, B.
Mahler
, H.
Aubin
, and B.
Dubertret
, “Quasi-2D colloidal semiconductor nanoplatelets for narrow electroluminescence
,” Adv. Funct. Mater.
24
(3
), 295
–302
(2014
).21.
F.
Zhang
, S.
Wang
, L.
Wang
, Q.
Lin
, H.
Shen
, W.
Cao
, C.
Yang
, H.
Wang
, L.
Yu
, Z.
Du
et al, “Super color purity green quantum dot light-emitting diodes fabricated by using CdSe/CdS nanoplatelets
,” Nanoscale
8
(24
), 12182
–12188
(2016
).22.
U.
Giovanella
, M.
Pasini
, M.
Lorenzon
, F.
Galeotti
, C.
Lucchi
, F.
Meinardi
, S.
Luzzati
, B.
Dubertret
, and S.
Brovelli
, “Efficient solution-processed nanoplatelet-based light-emitting diodes with high operational stability in air
,” Nano Lett.
18
(6
), 3441
–3448
(2018
).23.
B.
Guzelturk
, Y.
Kelestemur
, M.
Olutas
, S.
Delikanli
, and H. V.
Demir
, “Amplified spontaneous emission and lasing in colloidal nanoplatelets
,” ACS Nano
8
(7
), 6599
–6605
(2014
).24.
Z.
Yang
, M.
Pelton
, I.
Fedin
, D. V.
Talapin
, and E.
Waks
, “A room temperature continuous-wave nanolaser using colloidal quantum wells
,” Nat. Commun.
8
(1
), 143
(2017
).25.
Y.
Gao
, M.
Li
, S.
Delikanli
, H.
Zheng
, B.
Liu
, C.
Dang
, T. C.
Sum
, and H. V.
Demir
, “Low-threshold lasing from colloidal CdSe/CdSeTe core/alloyed-crown type-II heteronanoplatelets
,” Nanoscale
10
(20
), 9466
–9475
(2018
).26.
J. F.
Suyver
, S. F.
Wuister
, J. J.
Kelly
, and A.
Meijerink
, “Luminescence of nanocrystalline ZnSe:Mn2+
,” Phys. Chem. Chem. Phys.
2
(23
), 5445
–5448
(2000
).27.
D. J.
Norris
, N.
Yao
, F. T.
Charnock
, and T. A.
Kennedy
, “High-quality manganese-doped ZnSe nanocrystals
,” Nano Lett.
1
(1
), 3
–7
(2001
).28.
R.
Beaulac
, L.
Schneider
, P. I.
Archer
, G.
Bacher
, and D. R.
Gamelin
, “Light-induced spontaneous magnetization in doped colloidal quantum dots
,” Science
325
(5943
), 973
–976
(2009
).29.
H.
Chen
, S.
Maiti
, and D. H.
Son
, “Doping location-dependent energy transfer dynamics in Mn-doped CdS/ZnS nanocrystals
,” ACS Nano
6
(1
), 583
–591
(2012
).30.
A.
Pandey
, S.
Brovelli
, R.
Viswanatha
, L.
Li
, J. M.
Pietryga
, V. I.
Klimov
, and S. A.
Crooker
, “Long-lived photoinduced magnetization in copper-doped ZnSe-CdSe core-shell nanocrystals
,” Nat. Nanotechnol.
7
(12
), 792
–797
(2012
).31.
Z.
Hu
, S.
Xu
, X.
Xu
, Z.
Wang
, Z.
Wang
, C.
Wang
, and Y.
Cui
, “Co-doping of Ag into Mn:ZnSe quantum dots: Giving optical filtering effect with improved monochromaticity
,” Sci. Rep.
5
(1
), 14817
(2015
).32.
K. E.
Knowles
, K. H.
Hartstein
, T. B.
Kilburn
, A.
Marchioro
, H. D.
Nelson
, P. J.
Whitham
, and D. R.
Gamelin
, “Luminescent colloidal semiconductor nanocrystals containing copper: Synthesis, photophysics, and applications
,” Chem. Rev.
116
(18
), 10820
–10851
(2016
).33.
H. D.
Nelson
, S. O. M.
Hinterding
, R.
Fainblat
, S. E.
Creutz
, X.
Li
, and D. R.
Gamelin
, “Mid-gap states and normal vs inverted bonding in luminescent Cu+- and Ag+-doped CdSe nanocrystals
,” J. Am. Chem. Soc.
139
(18
), 6411
–6421
(2017
).34.
N.
Pradhan
, S.
Das Adhikari
, A.
Nag
, and D. D.
Sarma
, “Luminescence, plasmonic, and magnetic properties of doped semiconductor nanocrystals
,” Angew. Chem., Int. Ed.
56
(25
), 7038
–7054
(2017
).35.
C.
Pu
, X.
Peng
, Z.
Xu
, X.
Yang
, S.
Liu
, and H.
Qin
, “Temperature- and Mn2+ concentration-dependent emission properties of Mn2+-doped ZnSe nanocrystals
,” J. Am. Chem. Soc.
141
, 2288
–2298
(2019
).36.
J.
Eilers
, E.
Groeneveld
, C.
de Mello Donegá
, and A.
Meijerink
, “Optical properties of Mn-doped ZnTe magic size nanocrystals
,” J. Phys. Chem. Lett.
3
(12
), 1663
–1667
(2012
).37.
J.
Yang
, R.
Fainblat
, S. G.
Kwon
, F.
Muckel
, J. H.
Yu
, H.
Terlinden
, B. H.
Kim
, D.
Iavarone
, M. K.
Choi
, I. Y.
Kim
et al, “Route to the smallest doped semiconductor: Mn2+-doped (CdSe)13 clusters
,” J. Am. Chem. Soc.
137
(40
), 12776
–12779
(2015
).38.
S.
Pittala
, M. J.
Mortelliti
, F.
Kato
, and K. R.
Kittilstved
, “Substitution of Co2+ ions into CdS-based molecular clusters
,” Chem. Commun.
51
(96
), 17096
–17099
(2015
).39.
F.
Muckel
, J.
Yang
, S.
Lorenz
, W.
Baek
, H.
Chang
, T.
Hyeon
, G.
Bacher
, and R.
Fainblat
, “Digital doping in magic-sized CdSe clusters
,” ACS Nano
10
(7
), 7135
–7141
(2016
).40.
J.
Yang
, F.
Muckel
, W.
Baek
, R.
Fainblat
, H.
Chang
, G.
Bacher
, and T.
Hyeon
, “Chemical synthesis, doping, and transformation of magic-sized semiconductor alloy nanoclusters
,” J. Am. Chem. Soc.
139
(19
), 6761
–6770
(2017
).41.
J.
Yang
, F.
Muckel
, B. K.
Choi
, S.
Lorenz
, I. Y.
Kim
, J.
Ackermann
, H.
Chang
, T.
Czerney
, V. S.
Kale
, S.-J.
Hwang
et al, “Co2+-doping of magic-sized CdSe clusters: Structural insights via ligand field transitions
,” Nano Lett.
18
(11
), 7350
–7357
(2018
).42.
M.
Sharma
, K.
Gungor
, A.
Yeltik
, M.
Olutas
, B.
Guzelturk
, Y.
Kelestemur
, T.
Erdem
, S.
Delikanli
, J. R.
McBride
, and H. V.
Demir
, “Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators
,” Adv. Mater.
29
(30
), 1700821
(2017
).43.
M.
Dufour
, E.
Izquierdo
, C.
Livache
, B.
Martinez
, M. G.
Silly
, T.
Pons
, E.
Lhuillier
, C.
Delerue
, and S.
Ithurria
, “Doping as a strategy to tune color of 2D colloidal nanoplatelets
,” ACS Appl. Mater. Interfaces
11
(10
), 10128
–10134
(2019
).44.
A. H.
Khan
, V.
Pinchetti
, I.
Tanghe
, Z.
Dang
, B.
Martín-García
, Z.
Hens
, D.
Van Thourhout
, P.
Geiregat
, S.
Brovelli
, and I.
Moreels
, “Tunable and efficient red to near-infrared photoluminescence by synergistic exploitation of core and surface silver doping of CdSe nanoplatelets
,” Chem. Mater.
31
(4
), 1450
–1459
(2019
).45.
S.
Delikanli
, M. Z.
Akgul
, J. R.
Murphy
, B.
Barman
, Y.
Tsai
, T.
Scrace
, P.
Zhang
, B.
Bozok
, P. L.
Hernández-Martínez
, J.
Christodoulides
et al, “Mn2+-doped CdSe/CdS core/multishell colloidal quantum wells enabling tunable carrier–dopant exchange interactions
,” ACS Nano
9
(12
), 12473
–12479
(2015
).46.
J. R.
Murphy
, S.
Delikanli
, T.
Scrace
, P.
Zhang
, T.
Norden
, T.
Thomay
, A. N.
Cartwright
, H. V.
Demir
, and A.
Petrou
, “Time-resolved photoluminescence study of CdSe/CdMnS/CdS core/multi-shell nanoplatelets
,” Appl. Phys. Lett.
108
(24
), 242406
(2016
).47.
F.
Muckel
, S.
Delikanli
, P. L.
Hernández-Martínez
, T.
Priesner
, S.
Lorenz
, J.
Ackermann
, M.
Sharma
, H. V.
Demir
, and G.
Bacher
, “Sp–d exchange interactions in wave function engineered colloidal CdSe/Mn:CdS hetero-nanoplatelets
,” Nano Lett.
18
(3
), 2047
–2053
(2018
).48.
B.
Henderson
and G. F.
Imbusch
, Optical Spectroscopy of Inorganic Solids
(Oxford University Press
, New York
, 1989
).49.
J. F.
Suyver
, J. J.
Kelly
, and A.
Meijerink
, “Temperature-induced line broadening, line narrowing and line shift in the luminescence of nanocrystalline ZnS:Mn2+
,” J. Lumin.
104
(3
), 187
–196
(2003
).50.
J. G.
Solé
, L. E.
Bausá
, and D.
Jaque
, An Introduction to the Optical Spectroscopy of Inorganic Solids
(John Wiley & Sons, Ltd.
, Chichester, UK
, 2005
).51.
B. N.
Figgis
and M. A.
Hitchman
, Ligand Field Theory and Its Applications
(Wiley
, New York, NY, USA
, 2000
).52.
H. A.
Weakliem
, “Optical spectra of Ni2+, Co2+, and Cu2+ in tetrahedral sites in crystals
,” J. Chem. Phys.
36
(8
), 2117
–2140
(1962
).53.
P. V.
Radovanovic
and D. R.
Gamelin
, “Electronic absorption spectroscopy of cobalt ions in diluted magnetic semiconductor quantum dots: Demonstration of an isocrystalline core/shell synthetic method
,” J. Am. Chem. Soc.
123
(49
), 12207
–12214
(2001
).54.
P. I.
Archer
, S. A.
Santangelo
, and D. R.
Gamelin
, “Inorganic cluster syntheses of TM2+-doped quantum dots (CdSe, CdS, CdSe/CdS): Physical property dependence on dopant locale
,” J. Am. Chem. Soc.
129
(31
), 9808
–9818
(2007
).55.
Y.
Tanabe
and S.
Sugano
, “On the absorption spectra of complex ions II
,” J. Phys. Soc. Jpn.
9
(5
), 766
–779
(1954
).56.
P. R.
Radovanovic
and D. R.
Gamelin
, “Magnetic circular dichroism spectroscopy of Co2+:CdS diluted magnetic semiconductor quantum dots
,” Proc. SPIE
4809
, 51
–61
(2002
).57.
D. E.
Mccumber
and M. D.
Sturge
, “Linewidth and temperature shift of the R lines in ruby
,” J. Appl. Phys.
34
(6
), 1682
–1684
(1963
).58.
A.
Meijerink
, G.
Blasse
, J.
Sytsma
, C.
de Mello Donega
, and A.
Ellens
, “Electron-phonon coupling in rare earth compounds
,” Acta Phys. Pol., A
90
(1
), 109
–119
(1996
).59.
A.
Ellens
, H.
Andres
, A.
Meijerink
, and G.
Blasse
, “Spectral-line-broadening study of the trivalent lanthanide-ion series. I. Line broadening as a probe of the electron-phonon coupling strength
,” Phys. Rev. B
55
(1
), 173
–179
(1997
).60.
D. K.
Sardar
and S. C.
Stubblefield
, “Temperature dependencies of linewidths, positions, and line shifts of spectral transitions of trivalent neodymium ions in barium magnesium yttrium germanate laser host
,” J. Appl. Phys.
83
(3
), 1195
–1199
(1998
).61.
Z.
Liu
, B.
Qu
, J. L.
Doualan
, B.
Xu
, H.
Xu
, Z.
Cai
, A.
Braud
, P.
Camy
, and R.
Moncorgé
, “Temperature effects on the main absorption and emission lines of the Pr3+:LiYF4 laser crystal
,” J. Opt. Soc. Am. B
32
(2
), 263
(2015
).62.
A.
Vink
and A.
Meijerink
, “Electron–phonon coupling of Cr3+ in YAG and YGG
,” J. Lumin.
87-89
, 601
–604
(2000
).63.
A. P.
Vink
, A.
Meijerink
, and G. D.
Jones
, “Temperature dependence of infrared-absorption lines of Co2+ in cadmium halides
,” Phys. Rev. B
66
(13
), 134303
(2002
).64.
X.
Chen
, Y.
Liu
, and D.
Tu
, Lanthanide-Doped Luminescent Nanomaterials
(Springer Berlin Heidelberg
, Berlin, Heidelberg
, 2014
).65.
J.
Rockenberger
, L.
Tröger
, A. L.
Rogach
, M.
Tischer
, M.
Grundmann
, A.
Eychmüller
, and H.
Weller
, “The contribution of particle core and surface to strain, disorder and vibrations in thiolcapped CdTe nanocrystals
,” J. Chem. Phys.
108
(18
), 7807
–7815
(1998
).66.
67.
W. R.
Mason
, A Practical Guide to Magnetic Circular Dichroism Spectroscopy
(John Wiley & Sons, Inc.
, Hoboken, NJ, USA
, 2007
).68.
U.
Gennser
, X. C.
Liu
, T. Q.
Vu
, D.
Heiman
, T.
Fries
, Y.
Shapira
, M.
Demianiuk
, and A.
Twardowski
, “Exchange energies, bound magnetic polarons, and magnetization in CdSe:Co and CdS:Co
,” Phys. Rev. B
51
(15
), 9606
–9611
(1995
).69.
A. D.
Buckingham
and P. J.
Stephens
, “Magnetic optical activity
,” Annu. Rev. Phys. Chem.
17
(1
), 399
–432
(1966
).70.
T. A.
Kaden
and B.
Holmquist
, “Magnetic circular dichroism of cobalt(ii) complexes
,” Inorg. Chem.
13
(11
), 2585
–2590
(1974
).71.
R.
Fainblat
, J.
Frohleiks
, F.
Muckel
, J. H.
Yu
, J.
Yang
, T.
Hyeon
, and G.
Bacher
, “Quantum confinement-controlled exchange coupling in manganese(ii)-doped CdSe two-dimensional quantum well nanoribbons
,” Nano Lett.
12
(10
), 5311
–5317
(2012
).72.
M.
Kuno
, M.
Nirmal
, M. G.
Bawendi
, A.
Efros
, and M.
Rosen
, “Magnetic circular dichroism study of CdSe quantum dots
,” J. Chem. Phys.
108
(10
), 4242
(1998
).73.
J. A.
Gaj
, in Introduction to the Physics of Diluted Magnetic Semiconductors
, Springer Series in Materials Science Vol. 144, edited by J. A.
Gaj
and J.
Kossut
(Springer Berlin Heidelberg
, Berlin
, 2010
).74.
E. V.
Shornikova
, L.
Biadala
, D. R.
Yakovlev
, D.
Feng
, V. F.
Sapega
, N.
Flipo
, A. A.
Golovatenko
, M. A.
Semina
, A. V.
Rodina
, A. A.
Mitioglu
et al, “Electron and hole G-factors and spin dynamics of negatively charged excitons in CdSe/CdS colloidal nanoplatelets with thick shells
,” Nano Lett.
18
(1
), 373
–380
(2018
).75.
C.
Rigaux
, “Magnetooptics in narrow gap diluted magnetic semiconductors
,” in Semiconductors and Semimetals
, edited by J. K.
Furdyna
and J.
Kossut
(Elsevier
, 1988
), Chap. 6, Vol. 25, pp. 229
–274
.76.
J. A.
Gaj
and J.
Kossut
, “Basic consequences of sp-d and d-d interactions in DMS
,” in Introduction to the Physics of Diluted Magnetic Semiconductors
, edited by J.
Kossut
and J. A.
Gaj
(Springer-Verlag
, Berlin
, 2010
), pp. 1
–36
.77.
A. M.
Schimpf
and D. R.
Gamelin
, “Thermal tuning and inversion of excitonic Zeeman splittings in colloidal doped CdSe quantum dots
,” J. Phys. Chem. Lett.
3
(10
), 1264
–1268
(2012
).78.
C. J.
Barrows
, R.
Fainblat
, and D. R.
Gamelin
, “Excitonic Zeeman splittings in colloidal CdSe quantum dots doped with single magnetic impurities
,” J. Mater. Chem. C
5
(21
), 5232
–5238
(2017
).79.
S.
Delikanli
, G.
Yu
, A.
Yeltik
, S.
Bose
, T.
Erdem
, J.
Yu
, O.
Erdem
, M.
Sharma
, V. K.
Sharma
, U.
Quliyeva
et al, “Ultrathin highly luminescent two-monolayer colloidal CdSe nanoplatelets
,” Adv. Funct. Mater.
29
(35
), 1901028
(2019
).80.
R.
Strassberg
, S.
Delikanli
, Y.
Barak
, J.
Dehnel
, A.
Kostadinov
, G.
Maikov
, P. L.
Hernandez-Martinez
, M.
Sharma
, H. V.
Demir
, and E.
Lifshitz
, “Persuasive evidence for electron–nuclear coupling in diluted magnetic colloidal nanoplatelets using optically detected magnetic resonance spectroscopy
,” J. Phys. Chem. Lett.
10
(15
), 4437
–4447
(2019
).© 2019 Author(s).
2019
Author(s)
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