Carrier Mobility, Lifetime, and Diffusion Length in Optically Thin Quantum Dot Semiconductor Films

2020 ◽  
Vol 12 (27) ◽  
pp. 30565-30571
Author(s):  
Epimitheas Georgitzikis ◽  
Jan Genoe ◽  
Paul Heremans ◽  
David Cheyns
Keyword(s):  
Quantum Dot ◽  
Carrier Mobility ◽  
Diffusion Length ◽  
Semiconductor Films ◽  
And Diffusion

scholarly journals Colloidal thallium halide nanocrystals with reasonable luminescence, carrier mobility and diffusion length

2017 ◽  
Vol 8 (6) ◽  
pp. 4602-4611 ◽  
Author(s):  
Wasim J. Mir ◽  
Avinash Warankar ◽  
Ashutosh Acharya ◽  
Shyamashis Das ◽  
Pankaj Mandal ◽  
...  
Keyword(s):  
Carrier Mobility ◽  
Diffusion Length ◽  
Deep Trap ◽  
Blue Luminescence ◽  
Trap States ◽  
High Carrier Mobility ◽  
High Carrier ◽  
And Diffusion

Colloidal TlI and TlBr nanocrystals are prepared, which show violet-blue luminescence, high carrier mobility and long diffusion lengths thus suggesting the suppression of deep-trap states.

Minority carrier lifetime and diffusion length in type II superlattice barrier devices

2019 ◽  
Vol 96 ◽  
pp. 155-162 ◽  
Author(s):  
P.C. Klipstein ◽  
Y. Benny ◽  
S. Gliksman ◽  
A. Glozman ◽  
E. Hojman ◽  
...  
Keyword(s):  
Carrier Lifetime ◽  
Minority Carrier ◽  
Diffusion Length ◽  
Minority Carrier Lifetime ◽  
Type Ii ◽  
Type Ii Superlattice ◽  
And Diffusion

Equilibrium Spectrum and Diffusion Length in Natural Uranium

1958 ◽  
Vol 3 (6) ◽  
pp. 772-773 ◽  
Author(s):  
D. Meneghetti ◽  
H. H. Hummel ◽  
W. B. Loewenstein
Keyword(s):  
Diffusion Length ◽  
Natural Uranium ◽  
Equilibrium Spectrum ◽  
And Diffusion

Reduced surface sidewall recombination and diffusion in quantum-dot lasers

2006 ◽  
Vol 18 (17) ◽  
pp. 1861-1863 ◽  
Author(s):  
S.A. Moore ◽  
L. O'Faolain ◽  
M.A. Cataluna ◽  
M.B. Flynn ◽  
M.V. Kotlyar ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Quantum Dot Lasers ◽  
And Diffusion ◽  
Reduced Surface

Estimating the diffusion length in the deepest section of ice cores; A case study for MIS19 in Dome-C

2021 ◽  
Author(s):  
Thomas Laepple ◽  
Thomas Münch ◽  
Torben Kunz ◽  
Mathieu Casado ◽  
Maria Hoerhold
Keyword(s):  
Diffusion Length ◽  
Ice Core ◽  
Ice Cores ◽  
Climate Information ◽  
Climate Signal ◽  
A Value ◽  
Recovery Strategies ◽  
Length Estimate ◽  
And Diffusion

<p>To recover very old climate information from ice core records, one needs to interpret the deepest part of an ice core. As the oldest record, the Dome-C ice core can serve as an analogue for the Beyond EPICA Oldest Ice Core that is currently being drilled.<br><br>Pol et al., EPSL 2010 analyzed high resolution water isotope data from the Dome-C ice core and found evidence for a limited preservation of climate variability in the deep section of the core due to mixing and diffusion. For instance, for Marine Isotope Stage 19, the study estimated a mixing/diffusion length between 40 and 60 cm, a value more than double than what is predicted by current firn and ice diffusion models. Knowing the diffusion length is important to interpret the isotope signal and is the basis to deconvolve climate records. As a result, it is key to bridge the gap in the estimation of the diffusion length between potentially biased statistical methods and firn and ice diffusion models.<br>We review this diffusion length estimate for MIS19, and also outline a new general method how to estimate the diffusion length in highly thinned deep ice.  This approach presents an important tool for better characterizing the preservation of the climate signal in old ice and thus for designing optimal sampling and recovery strategies.</p><p> </p>

Comparative Study of Photocarrier Dynamics in CVD-deposited CuWO4, CuO, and WO3 Thin Films for Photoelectrocatalysis

2020 ◽  
Vol 234 (4) ◽  
pp. 699-717
Author(s):  
James Hirst ◽  
Sönke Müller ◽  
Daniel Peeters ◽  
Alexander Sadlo ◽  
Lukas Mai ◽  
...  
Keyword(s):  
Thin Films ◽  
Carrier Mobility ◽  
Carrier Transport ◽  
Terahertz Spectroscopy ◽  
Chemical Vapor ◽  
Photoelectrochemical Cells ◽  
Time Resolved ◽  
And Diffusion ◽  
Wo3 Thin Films ◽  
Carrier Transport Properties

AbstractThe temporal evolution of photogenerated carriers in CuWO4, CuO and WO3 thin films deposited via a direct chemical vapor deposition approach was studied using time-resolved microwave conductivity and terahertz spectroscopy to obtain the photocarrier lifetime, mobility and diffusion length. The carrier transport properties of the films prepared by varying the copper-to-tungsten stoichiometry were compared and the results related to the performance of the compositions built into respective photoelectrochemical cells. Superior carrier mobility was observed for CuWO4 under frontside illumination.

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