Solvothermal synthesis of Hg1−xCdxTe nanostructures—Their structural and optical properties

Khatei, Jayakrishna; Pendyala, Naresh Babu; Rao, K. S. R. Koteswara

doi:10.1016/j.jallcom.2011.01.134

Cited by 4 publications

(1 citation statement)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, Mn‐doped PbS QDs showed magnetic properties, and Mn‐doped CdSe QDs showed efficient photoluminescence in the visible due to the energy transfer from CdSe QDs to the Mn ions. Ternary alloyed QDs such as Pb 1‐x Cd x S, Pb 1‐x Cd x Se, and Hg 1‐x Cd x Te have been reported. Ternary alloying leads to additional means for the modulation of band gap energy of QDs.…”

Section: Sn‐doped Pbse Qds Formation In Glassesmentioning

confidence: 99%

Band Gap and Diameter Modulation of Quantum Dots in Glasses

Liu

Heo

2015

Int J of Appl Glass Sci

View full text Add to dashboard Cite

Modulation of the band gap energy and diameter of quantum dots (QDs) formed in glasses is important to achieve the optimized performance for applications as infrared light sources, lasers, saturable absorbers, etc. Absorption and photoluminescence of PbS QDs were extended into mid-infrared wavelength range in glasses containing small amount of lead but oversaturated with sulfur. Dual-band photoluminescence of PbSe QDs was prepared in oxyfluoride glass-ceramics containing BaF 2 nanocrystals. By introducing SnO in the glasses, alloyed Pb 1-x Sn x Se QDs with smaller band gap energies were formed in glasses, and mid-infrared photoluminescence of Pb 1-x Sn x Se QDs at~2570 nm in wavelength was achieved. *jheo@postech.ac.kr * Simulation of absorption spectra with multiple Gaussian functions was only used as reference. For glasses showing dual-band photoluminescence, the first low-energy absorption peaks were simulated with two Gaussian functions. For samples 5-7, the absorption spectra were simulated with five Gaussian functions, two for the 1S e -1S h (first low-energy absorption peak), one for 1S e, h -1S h, e (second low-energy absorption peak), one for 1P e -1P h (third low-energy absorption peak), and one for background. † Average diameters of PbSe QDs were calculated based on the absorption peak wavelength using the empirical equation. 30 Error bar was estimated from the width of the absorption peaks.

show abstract

Section: Sn‐doped Pbse Qds Formation In Glassesmentioning

confidence: 99%