Spectroscopy — Boosting the Optoelectronic Performance by Regulating Exciton Behaviors in a Porous Semiconductive Metal-Organic Framework

9 measurement groups · 14 results

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

Energy-transfer yield derived from fluorescence lifetimes

RhB+@TbTATAB guest-loaded crystals · Powder

phi_et derived using tau before and tau after relation for radiative/nonradiative/ET rates.

Context: Guest-loaded sample compared with physically mixed control.
Measurement source: p003 / article p2191 · Energy Transfer and Charge Transfer · Figure 1d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Energy-transfer yield of physical mixture	0.28%	—	—	Text Exact Reported	p003 / article p2191 · Energy Transfer and Charge Transfer · Figure 1d
Energy-transfer yield of RhB+@TbTATABMarked as a best value within this paper	77.4%	—	—	Text Exact Reported	p003 / article p2191 · Energy Transfer and Charge Transfer · Figure 1d

Time-resolved fluorescence decay

Photoluminescence and fluorescence spectroscopy

RhB+@TbTATAB guest-loaded crystals · Powder

RhB: lambda_ex 365 nm, lambda_em 684 nm; other samples: lambda_ex 365 nm, lambda_em 623 nm.

Context: Target sample compared with TbTATAB, mechanical mixture, and RhB.
Measurement source: p002 / article p2190 · Figure 1 caption; Energy Transfer and Charge Transfer · Figure 1d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Fluorescence lifetime of mechanical mixture	tau_mechanical mixture = 1119.7 us	—	—	Caption Exact Reported	p002 / article p2190 · Figure 1 caption · Figure 1d
Fluorescence lifetime of RhB	tau_RhB = 7.3 us	—	—	Caption Exact Reported	p002 / article p2190 · Figure 1 caption · Figure 1d
Fluorescence lifetime of RhB+@TbTATAB	tau_RhB+@TbTATAB = 256.5 us	—	—	Caption Exact Reported	p002 / article p2190 · Figure 1 caption · Figure 1d
Fluorescence lifetime of TbTATAB	tau_TATAB = 1133.7 us	—	—	Caption Exact Reported	p002 / article p2190 · Figure 1 caption · Figure 1d

Femtosecond transient absorption

Transient absorption spectroscopy

RhB+@TbTATAB guest-loaded crystals · Powder

Powder samples pressed flat on quartz plate; 300 nm pump beam, 200 uW.

Geometry: powder pressed on quartz plate
Context: Guest-loaded target sample compared with parent TbTATAB and RhB.
Measurement source: p003 / SI S1 and p013 / SI S11 · Femtosecond Transient Absorption Experiments; Figure S18 · Figure S18

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Growth time constant of transient absorption feature near 620 nm	10.3 ps	—	—	Text Exact Reported	p004 / article p2192 · Exciton Behaviors · Figure S18

FTIR

Infrared spectroscopy

RhB+@TbTATAB guest-loaded crystals · Powder

Powder FTIR, 400-4000 cm-1, Thermo Scientific Nicolet iS50.

Context: Target guest-loaded sample compared with pristine TbTATAB.
Measurement source: p004 / SI S2 and p007 / SI S5 · Physical characterizations; Figure S3 and Table S1 · Figure S3; Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
DMF exchange after RhB+ incorporation	DMF molecules almost entirely exchanged by RhB+ guests	—	—	Text Qualitative	p003 / article p2191 · Synthesis and Characterization · Figure S3
C-N vibration wavenumber	1176, 1240 cm-1	—	second band 1240 cm-1	SI Table Exact Reported	p007 / SI S5 · Supplementary figures · Table S1
Tb-O vibration range	450-706 cm-1	—	range upper bound 706 cm-1	SI Table Range	p007 / SI S5 · Supplementary figures · Table S1

Temperature-dependent photoluminescence fitted with Arrhenius equation

Photoluminescence and fluorescence spectroscopy

RhB+@TbTATAB guest-loaded crystals · Powder

Integrated PL intensity versus temperature; Eb estimated from Arrhenius fit.

Context: Guest-loaded target sample.
Measurement source: p004-p005 / article p2192-p2193 · Exciton Behaviors · Figure 3d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Exciton binding energy of RhB+@TbTATABMarked as a best value within this paper	91.9 meV	0.0919 eV	—	Text Exact Reported	p005 / article p2193 · Exciton Behaviors · Figure 3d

Temperature-dependent photoluminescence fitted with Arrhenius equation

Photoluminescence and fluorescence spectroscopy

as-synthesised TbTATAB powder/crystals · Powder

Integrated PL intensity versus temperature; Eb estimated from Arrhenius fit.

Context: Pristine parent framework.
Measurement source: p004-p005 / article p2192-p2193 · Exciton Behaviors · Figure 3c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Exciton binding energy of TbTATAB	17.4 meV	0.0174 eV	—	Text Exact Reported	p005 / article p2193 · Exciton Behaviors · Figure 3c

UPS energy-level analysis

Ultraviolet photoelectron spectroscopy

RhB+@TbTATAB guest-loaded crystals · Powder

Thermo Scientific Escalab 250Xi, He I hv = 21.2 eV; HOMO from Ecutoff and Eonset, LUMO from HOMO and Eg.

Context: Guest-loaded sample compared with parent MOF and RhB.
Measurement source: p005 / SI S3 and p012 / SI S10 · The energy-level diagram analysis · Figure S15

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source

Solid-state UV-vis absorption / optical energy plot

UV-visible and optical absorption spectroscopy

RhB+@TbTATAB guest-loaded crystals · Powder

Single-crystal solid-state UV-vis absorption using microspectrophotometer.

Context: Guest-loaded target sample.
Measurement source: p009 / SI S7 · Supplementary figures · Figure S7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Optical energy gap of RhB+@TbTATABMarked as a best value within this paper	2.1 eV	—	—	Caption Rounded Reported	p009 / SI S7 · Supplementary figures · Figure S7

Solid-state UV-vis absorption / optical energy plot

UV-visible and optical absorption spectroscopy

as-synthesised TbTATAB powder/crystals · Powder

Single-crystal solid-state UV-vis absorption using microspectrophotometer.

Context: Pristine parent framework.
Measurement source: p009 / SI S7 · Supplementary figures · Figure S7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Optical energy gap of TbTATAB	3.1 eV	—	—	Caption Rounded Reported	p009 / SI S7 · Supplementary figures · Figure S7