Spectroscopy — Fabrication of nonlinear optical metal-organic framework dizinc tetraglycinate dihydrate with optical limiting applications

6 measurement groups · 45 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

FT-IR spectroscopy using Thermoscientific Nicolet IS50

Infrared spectroscopy

DZTGD single crystal · Single Crystal

Functional group assignments from 4000-500 cm-1 region

Geometry: FT-IR spectrum
Context: pristine DZTGD
Measurement source: 2 · 2.2 Characterization Studies; 4.8 FT-IR spectroscopy study · Fig. 19

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Anti-symmetric C=O vibration	1446 cm-1	—	—	Text Exact Reported	11 · 4.8 FT-IR spectroscopy study · Fig. 19
C=O stretching	1583 cm-1	—	—	Text Exact Reported	11 · 4.8 FT-IR spectroscopy study · Fig. 19
NH3 anti-symmetric stretching	3157 cm-1	—	—	Text Exact Reported	11 · 4.8 FT-IR spectroscopy study · Fig. 19
NH3 symmetric stretching	2272 cm-1	—	—	Text Exact Reported	11 · 4.8 FT-IR spectroscopy study · Fig. 19
Asymmetric O-H stretching	3448 cm-1	—	—	Text Exact Reported	11 · 4.8 FT-IR spectroscopy study · Fig. 19
O-H deformation	1439 cm-1	—	—	Text Exact Reported	11 · 4.8 FT-IR spectroscopy study · Fig. 19
Out-of-plane deformation	698 cm-1	—	—	Text Exact Reported	11 · 4.8 FT-IR spectroscopy study · Fig. 19
Symmetric C=O stretching band	1291 cm-1	—	—	Text Exact Reported	11 · 4.8 FT-IR spectroscopy study · Fig. 19
Symmetric C=O stretching band	1145 cm-1	—	—	Text Exact Reported	11 · 4.8 FT-IR spectroscopy study · Fig. 19
Torsion mode	533 cm-1	—	—	Text Exact Reported	11 · 4.8 FT-IR spectroscopy study · Fig. 19

Photoluminescence spectroscopy using EDINBURGH FLS1000 fluorescence spectrometer

Photoluminescence and fluorescence spectroscopy

DZTGD single crystal · Single Crystal

Emission recorded from 330 to 450 nm under 320 nm excitation

Geometry: PL spectrum
Context: pristine DZTGD
Measurement source: 11 · 4.7 Photoluminescence STUDY · Fig. 18

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
PL excitation wavelength	320 nm	—	—	Text Exact Reported	11 · 4.7 Photoluminescence STUDY · Fig. 18
PL high-intensity peak	360 nm	—	—	Text Exact Reported	11 · 4.7 Photoluminescence STUDY · Fig. 18
PL second peak	377 nm	—	—	Text Exact Reported	11 · 4.7 Photoluminescence STUDY · Fig. 18
PL third peak/deep violet emission	410 nm	—	—	Text Exact Reported	11 · 4.7 Photoluminescence STUDY · Fig. 18

Second harmonic generation (SHG) with mode-locked Ti-sapphire laser

Powdered DZTGD sample for SHG · Powder

800 nm fundamental, 1 kHz repetition, average power 1 mW, powdered sample in capillary, SHG signal at 400 nm recorded by CCD; compared with KDP

Temperature: room temperature
Geometry: powder capillary SHG geometry
Context: pristine DZTGD compared with KDP reference
Measurement source: 13 · 4.11 Second harmonic generation (SHG) technique · Fig. 22

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
SHG efficiency relative to KDPMarked as a best value within this paper	1.61 times that of KDP crystal	—	—	Text Exact Reported	13 · 4.11 Second harmonic generation (SHG) technique · Fig. 22
SHG fundamental wavelength	800 nm	—	—	Text Exact Reported	13 · 4.11 Second harmonic generation (SHG) technique · Fig. 22
SHG signal wavelength	400 nm	—	—	Text Exact Reported	13 · 4.11 Second harmonic generation (SHG) technique · Fig. 22

UV-Vis-NIR spectroscopy using Thermo Fisher Evolution 220 spectrophotometer

UV-visible and optical absorption spectroscopy

DZTGD single crystal · Single Crystal

Transmittance, optical cut-off, Tauc band gap, refractive index and conductivity-derived optical parameters

Geometry: optical spectroscopy on single crystal
Context: pristine DZTGD
Measurement source: 2 · 2.2 Characterization Studies; 4.5 Optical study · Figs. 10-16

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Indirect optical band gapMarked as a best value within this paper	5.14 eV	—	—	Text Exact Reported	8 · 4.5 Optical study · Fig. 11
Imaginary dielectric constant maximum from spectrum	~1.25 × 10^5 near 6.1 eV	—	—	Figure Axis Approximate	9 · 4.5 Optical study · Fig. 16
Real dielectric constant maximum from spectrum	~2.4 × 10^8 near 6.1 eV	—	—	Figure Axis Approximate	9 · 4.5 Optical study · Fig. 15
Electrical conductivity maximum from spectrum	~375 (axis unit not reported) near 6.1 eV	—	—	Figure Axis Approximate	9 · 4.5 Optical study · Fig. 14
Electrical conductivity low-end value from spectrum	~160 (axis unit not reported) near 3.7 eV	—	—	Figure Axis Approximate	9 · 4.5 Optical study · Fig. 14
Optical conductivity maximum from spectrum	~4.6 × 10^10 S m-1 near 6.1 eV	—	—	Figure Axis Approximate	9 · 4.5 Optical study · Fig. 13
Optical conductivity order	order of 10^10 Sm-1	—	—	Text Rounded Reported	9 · 4.5 Optical study · Fig. 13
Refractive index constant value	1.01	—	—	Text Exact Reported	8 · 4.5 Optical study · Fig. 12
High transmittance wavelength	377 nm	—	—	Text Exact Reported	7 · 4.5 Optical study · Fig. 10
Optical cut-off wavelength	230 nm	—	—	Text Exact Reported	8 · 4.5 Optical study · Fig. 10

Wemple-DiDomenico single-oscillator model analysis

DZTGD single crystal · Single Crystal

Refractive-index dispersion below band gap fitted to single-oscillator model

Geometry: model fit to optical dispersion
Context: pristine DZTGD
Measurement source: 10 · 4.6 Wemple-DiDomenico single-oscillator model analysis · Table 4; Fig. 17

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Linear optical susceptibility	0.02707	—	—	Text Exact Reported	10 · 4.6 Wemple-DiDomenico single-oscillator model analysis
Single oscillator energy E0	5.99408 eV	—	—	Table Exact Reported	10 · 4.6 Wemple-DiDomenico single-oscillator model analysis · Table 4
Dispersion energy Ed	2.03823 eV	—	—	Table Exact Reported	10 · 4.6 Wemple-DiDomenico single-oscillator model analysis · Table 4
Oscillator strength f	12.21731 (eV)^2	—	—	Table Exact Reported	10 · 4.6 Wemple-DiDomenico single-oscillator model analysis · Table 4
Optical transition moment M-1	0.34004	—	—	Table Exact Reported	10 · 4.6 Wemple-DiDomenico single-oscillator model analysis · Table 4
Optical transition moment M-3	0.00946	—	—	Table Exact Reported	10 · 4.6 Wemple-DiDomenico single-oscillator model analysis · Table 4
Static refractive index n0	1.157	—	—	Table Exact Reported	10 · 4.6 Wemple-DiDomenico single-oscillator model analysis · Table 4

Open and closed aperture Z-scan using Q-switched Nd:YAG laser

DZTGD single crystal · Single Crystal

532 nm second harmonic, 6 ns pulse width, 10 Hz repetition, 20 cm focal lens, 35 µm beam waist, 1 mm cuvette thickness, Rayleigh length 7.44 mm

Geometry: open/closed aperture Z-scan; 1 cm quartz cuvette noted for optical limiting configuration
Context: pristine DZTGD
Measurement source: 13 · 4.12 Z scan technique · Figs. 23-24

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Absolute third-order susceptibility	7.73 × 10^-14 esu	—	—	Table Exact Reported	15 · 4.15 Susceptibility and hyperpolarizability calculations · Table 6
Second-order hyperpolarizability gammaMarked as a best value within this paper	7.60 × 10^-36 esu	—	—	Table Exact Reported	15 · 4.15 Susceptibility and hyperpolarizability calculations · Table 6
Imaginary third-order susceptibility	6.95 × 10^-14 esu	—	—	Table Exact Reported	15 · 4.15 Susceptibility and hyperpolarizability calculations · Table 6
Real third-order susceptibility	3.37 × 10^-14 esu	—	—	Table Exact Reported	15 · 4.15 Susceptibility and hyperpolarizability calculations · Table 6
Beam waist radius	35 µm	—	—	Text Exact Reported	13 · 4.12 Z scan technique · Figs. 23-24
Nonlinear refractive index n2	1.33 × 10^-19 m2/W	—	—	Table Exact Reported	15 · 4.15 Susceptibility and hyperpolarizability calculations · Table 6
Nonlinear absorption coefficient betaMarked as a best value within this paper	6.47 × 10^-12 m/W	—	—	Table Exact Reported	15 · 4.15 Susceptibility and hyperpolarizability calculations · Table 6
Z-scan pulse width	6 ns	—	—	Text Exact Reported	13 · 4.12 Z scan technique · Figs. 23-24
Rayleigh length	7.44 mm	—	—	Text Exact Reported	13 · 4.12 Z scan technique · Figs. 23-24
Z-scan repetition rate	10 Hz	—	—	Text Exact Reported	13 · 4.12 Z scan technique · Figs. 23-24
Z-scan laser wavelength	532 nm	—	—	Text Exact Reported	13 · 4.12 Z scan technique · Figs. 23-24