Otwarty dostęp

Fabrication and amplified spontaneous emission behavior of FAPbBr3 perovskite quantum dots in solid polymer rods

M. Naziruddin Khan
M. Naziruddin Khan
 oraz 
Abdullah Almohammedi
Abdullah Almohammedi
   | 04 lip 2022
Materials Science-Poland's Cover Image
O artykule
Poprzedni artykuł
Następny artykuł
Zacytuj
Data publikacji: 04 lip 2022
Zakres stron: 84 - 100
Otrzymano: 09 gru 2021
Przyjęty: 11 kwi 2022
DOI: https://doi.org/10.2478/msp-2022-0006
Słowa kluczowe
© 2022 M. Naziruddin Khan et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Digital images of samples (A) PQ-Dot solution; (B) PQ-Dot solid composite polymer rods and disks exposed to ultraviolet lamp; (C and D) PQ-Dot composite rods before and after cutting the rods
Digital images of samples (A) PQ-Dot solution; (B) PQ-Dot solid composite polymer rods and disks exposed to ultraviolet lamp; (C and D) PQ-Dot composite rods before and after cutting the rods

Fig. 2

Absorption spectra of PQ-Dots: (a) solution; (b, c) composite solid samples; and (d) polymer matrix
Absorption spectra of PQ-Dots: (a) solution; (b, c) composite solid samples; and (d) polymer matrix

Fig. 3

Emission and excitation spectra of PQ-Dots excited at different wavelengths: (A) solution; (B) composite rod; and (C) composite disk
Emission and excitation spectra of PQ-Dots excited at different wavelengths: (A) solution; (B) composite rod; and (C) composite disk

Fig. 4

Comparison of emission and excitation spectra of the PQ-Dot solution, composite polymer rods, and composite disks
Comparison of emission and excitation spectra of the PQ-Dot solution, composite polymer rods, and composite disks

Fig. 5

Spontaneous emission (SE) spectra of (A) PQ-Dot solution, (B) cylindrical composite rod and disk, and (C) the difference between the conditions for registration of the spectra
Spontaneous emission (SE) spectra of (A) PQ-Dot solution, (B) cylindrical composite rod and disk, and (C) the difference between the conditions for registration of the spectra

Fig. 6

Comparison between spontaneous and stimulated emission spectra of perovskite quantum dot composite rods at different (A) 465 nm excitation wavelengths and (B) sample sizes
Comparison between spontaneous and stimulated emission spectra of perovskite quantum dot composite rods at different (A) 465 nm excitation wavelengths and (B) sample sizes

Fig. 7

(A, B) ASE behavior spectra; (C) (a) threshold line, (b) peaks, and (c) FWHM with 465-nm pump energy of perovskite quantum dot composite rod. ASE, amplified spontaneous emission; FWHM, full width at half maximum
(A, B) ASE behavior spectra; (C) (a) threshold line, (b) peaks, and (c) FWHM with 465-nm pump energy of perovskite quantum dot composite rod. ASE, amplified spontaneous emission; FWHM, full width at half maximum

Fig. 8

SEM images of PQ-Dots in (A) solution, (B and C) composite polymer rods; (D) EDX spectra. EDX, energy dispersive X-ray spectroscopy; PQ-Dots, perovskite quantum dots
SEM images of PQ-Dots in (A) solution, (B and C) composite polymer rods; (D) EDX spectra. EDX, energy dispersive X-ray spectroscopy; PQ-Dots, perovskite quantum dots

Fig. 9

TEM images of PQ-Dots at (A) low and (B) high resolution; (C) EDX spectra. EDX, energy dispersive X-ray spectroscopy; PQ-Dots, perovskite quantum dots
TEM images of PQ-Dots at (A) low and (B) high resolution; (C) EDX spectra. EDX, energy dispersive X-ray spectroscopy; PQ-Dots, perovskite quantum dots

Fig. 10

TEM images of the PQ-Dot composite polymer matrix at (A) low and (B) high resolution; (C) EDX spectra. EDX, energy dispersive X-ray spectroscopy; PQ-Dots, perovskite quantum dots
TEM images of the PQ-Dot composite polymer matrix at (A) low and (B) high resolution; (C) EDX spectra. EDX, energy dispersive X-ray spectroscopy; PQ-Dots, perovskite quantum dots

Comparison of the emission, excitation, spontaneous emission, and ASE maxima among the solution, composite rod, and composite disk

Sample Emission maxima Excitation maxima Emission maxima excited by laser source ASE maxima excited by laser
Solution 541 nm 355 nm, 375 nm, 416 nm, 463 nm 534 nm 556 nm
Composite rod 535 nm 390 nm, 410 nm, 461 nm 542 nm
Composite disk 536 nm 310 nm, 370 nm, 412 nm, 461 nm 538 nm
eISSN:
2083-134X
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Materials Sciences, other, Nanomaterials, Functional and Smart Materials, Materials Characterization and Properties
Kanał RSS czasopisma