Two-dimensional CdSe-CdS heterostructures with thick shell grown at room temperature

被引：2
作者：
Woznica, Hanna [1 ]
Banski, Mateusz [1 ]
Podhorodecki, Artur [1 ]
机构：
[1] Wroclaw Univ Sci & Technol, Dept Expt Phys, Wybrzeze Wyspianskiego 27, PL-50370 Wroclaw, Poland
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2023年 / 296卷
关键词：
AMPLIFIED SPONTANEOUS EMISSION; THRESHOLD STIMULATED-EMISSION; COLLOIDAL NANOPLATELETS; QUANTUM DOTS; EFFICIENT; GREEN; RED;
D O I：
10.1016/j.mseb.2023.116540
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work we adopted the one-pot two temperature synthesis originally proposed for CdS nanoplatelets in order to synthesize high quality CdSe nanoplatelets. Then, we demonstrate another approach to synthesizing flat CdSe/CdS core/shell nanoplatelets with giant shell grown at room temperature. TEM analysis confirms shell heaving up to 19 monolayer of CdS. Based on optical spectroscopy studies a high quality of the red-color emission was finally proven for obtained 2D-heterostructures.
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页数：6
相关论文
共 45 条
[1]   Highly Stable, Near-Unity Efficiency Atomically Flat Semiconductor Nanocrystals of CdSe/ZnS Hetero-Nanoplatelets Enabled by ZnS-Shell Hot-Injection Growth [J].
Altintas, Yemliha ;
Quliyeva, Ulviyya ;
Gungor, Kivanc ;
Erdem, Onur ;
Kelestemur, Yusuf ;
Mutlugun, Evren ;
Kovalenko, Maksym V. ;
Demir, Hilmi Volkan .
SMALL, 2019, 15 (08)
[2]   Flat Colloidal Semiconductor Nanoplatelets [J].
Bouet, Cecile ;
Tessier, Mickael D. ;
Ithurria, Sandrine ;
Mahler, Benoit ;
Nadal, Brice ;
Dubertret, Benoit .
CHEMISTRY OF MATERIALS, 2013, 25 (08) :1262-1271
[3]   Role of target geometry in phagocytosis [J].
Champion, JA ;
Mitragotri, S .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (13) :4930-4934
[4]   Colloidal Synthesis of Laterally Confined Blue-Emitting 3.5 Monolayer CdSe Nanoplatelets [J].
Di Giacomo, Alessio ;
Roda, Carmelita ;
Khan, Ali Hossain ;
Moreels, Iwan .
CHEMISTRY OF MATERIALS, 2020, 32 (21) :9260-9267
[5]   Violet-to-Blue Gain and Lasing from Colloidal CdS Nanoplatelets: Low-Threshold Stimulated Emission Despite Low Photoluminescence Quantum Yield [J].
Diroll, Benjamin T. ;
Talapin, Dmitri V. ;
Schaller, Richard D. .
ACS PHOTONICS, 2017, 4 (03) :576-583
[6]   Lifetime blinking in nonblinking nanocrystal quantum dots [J].
Galland, Christophe ;
Ghosh, Yagnaseni ;
Steinbrueck, Andrea ;
Hollingsworth, Jennifer A. ;
Htoon, Han ;
Klimov, Victor I. .
NATURE COMMUNICATIONS, 2012, 3
[7]   Suppressed Auger Recombination in "Giant" Nanocrystals Boosts Optical Gain Performance [J].
Garcia-Santamaria, Florencio ;
Chen, Yongfen ;
Vela, Javier ;
Schaller, Richard D. ;
Hollingsworth, Jennifer A. ;
Klimov, Victor I. .
NANO LETTERS, 2009, 9 (10) :3482-3488
[8]   Giant Modal Gain Coefficients in Colloidal II-VI Nanoplatelets [J].
Guzelturk, Burak ;
Pelton, Matthew ;
Olutas, Murat ;
Demir, Hilmi Volkan .
NANO LETTERS, 2019, 19 (01) :277-282
[9]   Amplified Spontaneous Emission and Lasing in Colloidal Nanoplatelets [J].
Guzelturk, Burak ;
Kelestemur, Yusuf ;
Olutas, Murat ;
Delikanli, Savas ;
Demir, Hilmi Volkan .
ACS NANO, 2014, 8 (07) :6599-6605
[10]  
Ithurria S, 2011, NAT MATER, V10, P936, DOI [10.1038/NMAT3145, 10.1038/nmat3145]
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