scholarly journals Colloidal quantum dot chains: self-assembly mechanism and ratiometric fluorescent sensing

RSC Advances ◽  
2017 ◽  
Vol 7 (85) ◽  
pp. 53977-53983 ◽  
Author(s):  
Qin Sun ◽  
Liang Yang ◽  
Lei Su ◽  
Weikang Liu ◽  
Yifan Wang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Self Assembly ◽  
Carbon Dots ◽  
Fluorescent Sensing ◽  
Assembly Mechanism ◽  
Colloidal Quantum Dot ◽  
Self Assembled

Colloidal quantum dot chains self-assembled via the mediation of trithiocyanuric acid (TTCA) and ratiometric fluorescent sensing with blue emitting carbon dots (CDs) for As(iii).

scholarly journals Enhancing self-assembled colloidal quantum dot microsphere lasers

2021 ◽  
Author(s):  
Pedro Urbano Alves ◽  
Dimitars Jevtics ◽  
Michael J. Strain ◽  
Martin D. Dawson ◽  
Nicolas Laurand
Keyword(s):  
Quantum Dot ◽  
Colloidal Quantum Dot ◽  
Self Assembled

scholarly journals Correction to High-Efficiency Colloidal Quantum Dot Photovoltaics via Robust Self-Assembled Monolayers

Nano Letters ◽  
2015 ◽  
Vol 16 (1) ◽  
pp. 822-822 ◽  
Author(s):  
Gi-Hwan Kim ◽  
F. Pelayo García de Arquer ◽  
Yung Jin Yoon ◽  
Xinzheng Lan ◽  
Mengxia Liu ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Efficiency ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Colloidal Quantum Dot ◽  
Self Assembled

Real-time tracking of the self-assembled growth of a 3D Ge quantum dot lattice in an alumina matrix

2020 ◽  
Vol 53 (4) ◽  
pp. 1029-1038
Author(s):  
Ashin Shaji ◽  
Maja Micetic ◽  
Yuriy Halahovets ◽  
Peter Nadazdy ◽  
Igor Matko ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Self Assembly ◽  
Temporal Evolution ◽  
Ion Beam ◽  
The Self ◽  
Ex Situ ◽  
X Ray ◽  
Self Assembled ◽  
Ge Quantum Dot

A laboratory in situ grazing-incidence small-angle X-ray scattering (GISAXS) tracking of the self-assembled growth of a regular 3D Ge quantum dot (QD) structure in an amorphous Al2O3 matrix during the ion beam sputter deposition of a periodic Ge/Al2O3 multilayer on silicon is reported. A 573 K substrate temperature proved to be necessary to achieve the self-assembly effect. Relying on a fast repeated acquisition of GISAXS patterns, the temporal evolution of the growing 3D Ge QD structure was analyzed bilayer by bilayer to determine its type, lateral and vertical correlation lengths, and inter-QD distance. The QD structure was found to have body-centered tetragonal lattice type with ABA stacking, with the lattice parameters refined by fitting the final GISAXS pattern relying on a paracrystal model. A single set of paracrystal parameters enables one to simulate the temporal evolution of the in situ GISAXS patterns throughout the deposition process, suggesting that the Ge QD self-assembly is driven from the very beginning solely by the growing surface morphology. Ex situ GISAXS and X-ray reflectivity measurements along with a cross-section high-resolution transmission electron microscopy analysis complete the study.

Colloidal quantum dot photodetectors enhanced by self-assembled plasmonic nanoparticles

2011 ◽  
Vol 98 (11) ◽  
pp. 113110 ◽  
Author(s):  
Ludan Huang ◽  
Chang-Ching Tu ◽  
Lih Y. Lin
Keyword(s):  
Quantum Dot ◽  
Plasmonic Nanoparticles ◽  
Colloidal Quantum Dot ◽  
Self Assembled

Tuning the growth properties of Ge quantum dot lattices in amorphous oxides by matrix type

2013 ◽  
Vol 46 (5) ◽  
pp. 1490-1500 ◽  
Author(s):  
M. Buljan ◽  
M. Jerčinović ◽  
Z. Siketić ◽  
I. Bogdanović-Radović ◽  
I. Delač Marion ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Self Assembly ◽  
Critical Factor ◽  
The Self ◽  
Driving Mechanism ◽  
Matrix Type ◽  
The Matrix ◽  
Silica Alumina ◽  
Self Assembled ◽  
Ge Quantum Dot

Self-assembled growth of Ge quantum dot lattices in oxide matrices prepared by the quite simple magnetron sputtering deposition method allows the preparation of a variety of structures tunable by their shape, size and arrangement. The driving mechanism for the self-assembly was attributed to the surface morphology features originating from the quantum dots' growth. Here it is shown specifically that the matrix type is another critical factor that enables the control of the self-assembly process and the tuning of the ordering type and degree of regularity of quantum dot systems. The effectiveness of the matrix factor is demonstrated through the analysis of quantum dot arrangements in amorphous silica, alumina and mullite matrices. Using the same deposition conditions, different ordering types and degrees of disorder were found in the quantum dot systems based on different matrices. The matrix factor is shown to be driven by different matrix tendencies to smooth the surface during the growth of the films. The obtained results are relevant for understanding and tailoring of the self-assembled growth of quantum dot lattices in amorphous systems.

Improved performance of colloidal quantum dot solar cells using high-electric-dipole self-assembled layers

Nano Energy ◽  
2017 ◽  
Vol 39 ◽  
pp. 355-362 ◽  
Author(s):  
Randi Azmi ◽  
So Youn Nam ◽  
Septy Sinaga ◽  
Seung-Hwan Oh ◽  
Tae Kyu Ahn ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Electric Dipole ◽  
Quantum Dot Solar Cells ◽  
Colloidal Quantum Dot ◽  
Self Assembled ◽  
Improved Performance

High-Efficiency Colloidal Quantum Dot Photovoltaics via Robust Self-Assembled Monolayers

Nano Letters ◽  
2015 ◽  
Vol 15 (11) ◽  
pp. 7691-7696 ◽  
Author(s):  
Gi-Hwan Kim ◽  
F. Pelayo García de Arquer ◽  
Yung Jin Yoon ◽  
Xinzheng Lan ◽  
Mengxia Liu ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Efficiency ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Colloidal Quantum Dot ◽  
Self Assembled
Sign in / Sign up

Export Citation Format

Share Document