Spectroscopy — Photoactivated conductive MOF thin film arrays on micro-LEDs for chemiresistive gas sensing

3 measurement groups · 8 results

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

Raman spectroscopy

CuHHTP-5C · Thin Film

CuHHTP-xC films compared with crystalline Cu3HHTP2 powders; SI reports Renishaw Raman microscope, 532 nm laser, 1 mW beam for material characterisation.

Geometry: thin film on substrate
Context: pristine Cu3HHTP2 thin film
Measurement source: 4 · Results · Fig. 2b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Approximate hexagonal pore size	approximately 2 nm	—	—	Text Approximate	2 · Introduction · Fig. 1a
CuHHTP film Raman phase match	Peak positions matched Cu3HHTP2 powder and intensity increased with cycle number	—	—	Text Qualitative	4 · Results · Fig. 2b

X-ray photoelectron spectroscopy

CuHHTP-5C · Thin Film

Survey and high-resolution Cu 2p, O 1s, C 1s spectra; SI reports Thermofisher Scientific Nexsa G2 with Al K alpha source.

Geometry: thin film
Context: pristine Cu3HHTP2 thin film
Measurement source: 4 · Results · Supplementary Fig. 3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CuHHTP-5C XPS composition and Cu valence	Cu, C and O confirmed; Cu exists in multiple valence states	—	—	Text Qualitative	4 · Results · Supplementary Fig. 3

UV-vis absorbance and Tauc plot

UV-visible and optical absorption spectroscopy

CuHHTP-5C · Thin Film

cMOF films deposited on 1 x 1 cm2 transparent quartz substrates for absorbance measurement.

Geometry: film on quartz substrate
Context: CuHHTP and CoHHTP films
Measurement source: 30 · Supplementary Figures · Supplementary Fig. 23

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
*CoHHTP-7C pi-pi transition energy gap**	2.94 eV	—	—	Text Exact Reported	7 · Results · Supplementary Fig. 23
*CuHHTP-15C pi-pi transition energy gap**	2.86 eV	—	—	Text Exact Reported	7 · Results · Supplementary Fig. 23
*CuHHTP-5C pi-pi transition energy gap**	2.90 eV	—	—	Text Exact Reported	7 · Results · Supplementary Fig. 23
UV-vis LMCT absorbance peak	near 645 nm	—	—	Text Approximate	7 · Results · Supplementary Fig. 23
*UV-vis pi-pi absorbance peak**	around 360 nm	—	—	Text Approximate	7 · Results · Supplementary Fig. 23