Coexistence of type-I and type-II band lineups in Cd(Te,Se)∕ZnSe quantum-dot structures

2006 ◽  
Vol 89 (12) ◽  
pp. 123110 ◽  
Author(s):  
A. A. Toropov ◽  
I. V. Sedova ◽  
O. G. Lyublinskaya ◽  
S. V. Sorokin ◽  
A. A. Sitnikova ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Type I ◽  
Type Ii ◽  
Znse Quantum Dot

Coexistence of type-I and type-II band alignments in antimony-incorporated InAsSb quantum dot nanostructures

2012 ◽  
Vol 100 (3) ◽  
pp. 033102 ◽  
Author(s):  
Yu. I. Mazur ◽  
V. G. Dorogan ◽  
G. J. Salamo ◽  
G. G. Tarasov ◽  
B. L. Liang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Type I ◽  
Type Ii ◽  
Band Alignments

Type I–type II band alignment of a GaAsSb/InAs/GaAs quantum dot heterostructure influenced by dot size and strain-reducing layer composition

2013 ◽  
Vol 46 (9) ◽  
pp. 095103 ◽  
Author(s):  
A Hospodková ◽  
M Zíková ◽  
J Pangrác ◽  
J Oswald ◽  
J Kubištová ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Band Alignment ◽  
Type I ◽  
Type Ii ◽  
Gaas Quantum Dot ◽  
Layer Composition

scholarly journals Hybrid type-I InAs/GaAs and type-II GaSb/GaAs quantum dot structure with enhanced photoluminescence

2015 ◽  
Vol 106 (10) ◽  
pp. 103104 ◽  
Author(s):  
Hai-Ming Ji ◽  
Baolai Liang ◽  
Paul J. Simmonds ◽  
Bor-Chau Juang ◽  
Tao Yang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Type I ◽  
Type Ii ◽  
Hybrid Type ◽  
Enhanced Photoluminescence ◽  
Gaas Quantum Dot

The influence of Sb content and dots size of InAs/GaAs(1-x)Sbx quantum dot on type I-type II band alignment and carrier dynamics

2017 ◽  
Vol 122 (22) ◽  
pp. 225701
Author(s):  
Yaqian Li ◽  
Lian Ji ◽  
Shulong Lu ◽  
Chao Ding ◽  
Jianqiu Zhou
Keyword(s):  
Quantum Dot ◽  
Carrier Dynamics ◽  
Band Alignment ◽  
Type I ◽  
Type Ii

Understanding the Electronic Structure of Graphene Quantum Dot-Fullerene Nanohybrids for Photovoltaic Applications

2016 ◽  
Vol 230 (5-7) ◽  
Author(s):  
Chandrima Chakravarty ◽  
Poulami Ghosh ◽  
Bikash Mandal ◽  
Pranab Sarkar
Keyword(s):  
Electronic Structure ◽  
Quantum Dot ◽  
Hybrid Systems ◽  
Density Functional ◽  
Band Alignment ◽  
Type I ◽  
Type Ii ◽  
Graphene Quantum Dot ◽  
Band Energy ◽  
Form Type

AbstractBy using density-functional tight-binding method we have calculated the electronic structure of graphene quantum dot (GQD)-fullerene hybrid systems and explored the efficacy of their use in designing solar cells. We have shown that the electronic energy levels of the nanohybrids can be tuned either by varying the size of the quantum dots or by proper functionalization of the quantum dot (QD). The GQD-fullerene nanohybrids form type-I or type-II band energy alignment depending upon the size of the GQD. Thus, hybrid systems with smaller sized QDs form type-II band energy alignment while those of larger GQDs form type-I alignment. The type-II band alignment confirms the spatial charge separation for the systems and thus the rate of recombination of charge carriers will be low. The value of

Heat-Etching with a Bullivant Type II Simple Freeze-Cleave Device

1970 ◽  
Vol 28 ◽  
pp. 106-107 ◽  
Author(s):  
Ronald S. Weinstein ◽  
N. Scott McNutt
Keyword(s):  
New Zealand ◽  
General Hospital ◽  
Massachusetts General Hospital ◽  
Type I ◽  
Type Ii ◽  
Collaborative Effort ◽  
Temperature And Pressure ◽  
The University

The Type I simple cold block device was described by Bullivant and Ames in 1966 and represented the product of the first successful effort to simplify the equipment required to do sophisticated freeze-cleave techniques. Bullivant, Weinstein and Someda described the Type II device which is a modification of the Type I device and was developed as a collaborative effort at the Massachusetts General Hospital and the University of Auckland, New Zealand. The modifications reduced specimen contamination and provided controlled specimen warming for heat-etching of fracture faces. We have now tested the Mass. General Hospital version of the Type II device (called the “Type II-MGH device”) on a wide variety of biological specimens and have established temperature and pressure curves for routine heat-etching with the device.

Labelling of non-A, non-B hepatitis infected chimpanzee hepatocytes with nuclease-gold conjugates

1984 ◽  
Vol 42 ◽  
pp. 250-251
Author(s):  
G. D. Gagne ◽  
M. F. Miller ◽  
D. A. Peterson
Keyword(s):  
Endoplasmic Reticulum ◽  
Experimental Infection ◽  
Uranyl Acetate ◽  
Type I ◽  
Cellular Injury ◽  
Type Ii ◽  
Tubular Structures ◽  
Type Iii ◽  
Type Iv ◽  
Infected Chimpanzee

Experimental infection of chimpanzees with non-A, non-B hepatitis (NANB) or with delta agent hepatitis results in the appearance of characteristic cytoplasmic alterations in the hepatocytes. These alterations include spongelike inclusions (Type I), attached convoluted membranes (Type II), tubular structures (Type III), and microtubular aggregates (Type IV) (Fig. 1). Type I, II and III structures are, by association, believed to be derived from endoplasmic reticulum and may be morphogenetically related. Type IV structures are generally observed free in the cytoplasm but sometimes in the vicinity of type III structures. It is not known whether these structures are somehow involved in the replication and/or assembly of the putative NANB virus or whether they are simply nonspecific responses to cellular injury. When treated with uranyl acetate, type I, II and III structures stain intensely as if they might contain nucleic acids. If these structures do correspond to intermediates in the replication of a virus, one might expect them to contain DNA or RNA and the present study was undertaken to explore this possibility.

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