scholarly journals The Influence of Polysulfide Solvent on the Performance of Cadmium Sulfide Sensitized Zirconium Dioxide-Based Quantum Dots

2020 ◽  
Author(s):  
Ravi V. Ingle ◽  
◽  
Abhijit T. Supekar ◽  
Vikram P. Bhalekar ◽  
Bikram Prasad ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cadmium Sulfide ◽  
Zirconium Dioxide

scholarly journals Potential Harm of Maltodextrin‐Coated Cadmium Sulfide Quantum Dots in Embryos and Fetuses

10.5772/64653 ◽  
2016 ◽  
Author(s):  
Jorge Reyes-Esparza ◽  
Janet Sánchez-Quevedo ◽  
Antonieta Gómez-Solís ◽  
Patricia Rodríguez-Fragoso ◽  
Gerardo González De la Cruz ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cadmium Sulfide ◽  
Potential Harm

Electrical properties of Cadmium Sulfide quantum dots and polyaniline based nanocomposites

2021 ◽  
Vol 854 ◽  
pp. 156661
Author(s):  
Akhtar Rasool ◽  
Tasneem Zahra Rizvi ◽  
Sana Nayab ◽  
Zafar Iqbal
Keyword(s):  
Quantum Dots ◽  
Electrical Properties ◽  
Cadmium Sulfide

Functionalized Graphite Platelets and Lead Sulfide Quantum Dots Enhance Solar Conversion Capability of a Titanium Dioxide/Cadmium Sulfide Assembly

2014 ◽  
Vol 118 (33) ◽  
pp. 18924-18937 ◽  
Author(s):  
P. Naresh Kumar ◽  
Sudip Mandal ◽  
Melepurath Deepa ◽  
Avanish Kumar Srivastava ◽  
Amish G. Joshi
Keyword(s):  
Quantum Dots ◽  
Titanium Dioxide ◽  
Cadmium Sulfide ◽  
Lead Sulfide ◽  
Solar Conversion ◽  
Lead Sulfide Quantum Dots

scholarly journals Fluorescence modulation of cadmium sulfide quantum dots by azobenzene photochromic switches

2016 ◽  
Vol 472 (2186) ◽  
pp. 20150692 ◽  
Author(s):  
Hina Javed ◽  
Kalsoom Fatima ◽  
Zareen Akhter ◽  
Muhammad Arif Nadeem ◽  
Muhammad Siddiq ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cadmium Sulfide ◽  
Mercaptoacetic Acid ◽  
X Ray Diffraction ◽  
Photochromic Compounds ◽  
Lowest Unoccupied Molecular Orbital ◽  
Modified Surface ◽  
Fluorescence Modulation ◽  
Cds Qds ◽  
Surface Modified

We have investigated the attachment of azobenzene photochromic switches on the modified surface of cadmium sulfide (CdS) quantum dots (QDs). The modification of CdS QDs is done by varying the concentration of the capping agent (mercaptoacetic acid) and NH 3 in order to control the size of the QDs. The X-ray diffraction studies revealed that the crystallite size of CdS QDs ranged from 6 to 10 nm. The azobenzene photochromic derivatives bis(4-hydroxybenzene-1-azo)4,4′(1,1′ diphenylmethane) (I) and 4,4′-diazenyldibenzoic acid (II) were synthesized and attached with surface-modified CdS QDs to make fluorophore–photochrome CdS-(I) and CdS-(II) dyad assemblies. Upon UV irradiation, the photochromic compounds (I) and (II) undergo a reversible trans – cis isomerization. The photo-induced trans – cis transformation helps to transfer photo-excited electrons from the conduction band of the CdS QDs to the lowest unoccupied molecular orbital of cis isomer of photochromic compounds (I) and (II). As a result, the fluorescence of CdS-(I) and CdS-(II) dyads is suppressed approximately five times compared to bare CdS QDs. The fluorescence modulation in such systems could help to design luminescent probes for bioimaging applications.

Sign in / Sign up

Export Citation Format

Share Document