Spectroscopy — An optoelectronic synapse based on Cu-BHT MOF for multi-wavelength optical logic gates and neuromorphic vision system

3 measurement groups · 13 results

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

Cu-BHT thin film on ultra-white glass substrate · Thin Film

Band gap from absorption truncation; work function from secondary electron cutoff; valence-band edge from UPS.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ag work function used for band alignment	4.26 eV	4.26 eV	—	Text Exact Reported	p004 / 4 · Results and discussion · Fig. 2e
Optical band gap	about 2.14 eV	2.14 eV	—	Text Approximate	p004 / 4 · Results and discussion · Fig. S5a
Valence-band maximum to Fermi-level energy difference	1.50 eV	1.5 eV	—	Text Exact Reported	p004 / 4 · Results and discussion · Fig. S5c
Semiconductor type	n-type semiconductor properties	—	—	Text Qualitative	p004 / 4 · Results and discussion · Fig. 2d
Work function	4.62 eV	4.62 eV	—	Text Exact Reported	p004 / 4 · Results and discussion · Fig. S5b

Cu-BHT thin film on ultra-white glass substrate · Thin Film

Absorption spectrum of Cu-BHT thin film.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Strong absorption wavelength range	300 nm to 600 nm	—	—	Text Range	p002 / 2 · Results and discussion · Fig. 1c

Cu-BHT thin film on ultra-white glass substrate · Thin Film

High-resolution XPS deconvolution used to assign Cu oxidation states and S bonding environments.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu 2p1/2 Cu2+ binding energy	953.3 eV	953.3 eV	—	Text Exact Reported	p002 / 2 · Results and discussion · Fig. 1d
Cu 2p1/2 Cu+ binding energy	951.8 eV	951.8 eV	—	Text Exact Reported	p002 / 2 · Results and discussion · Fig. 1d
Cu 2p3/2 Cu2+ binding energy	932.9 eV	932.9 eV	—	Text Exact Reported	p002 / 2 · Results and discussion · Fig. 1d
Cu 2p3/2 Cu+ binding energy	932.1 eV	932.1 eV	—	Text Exact Reported	p002 / 2 · Results and discussion · Fig. 1d
Cu+/Cu2+ peak-area ratio	approximately 2:1	2 Cu+/Cu2+	—	Text Approximate	p002 / 2 · Results and discussion · Fig. 1d
S-C 2p3/2 binding energy	162.0 eV	162 eV	—	Text Exact Reported	p003 / 3 · Results and discussion · Fig. 1e
S-Cu to S-C integrated peak-area ratio	approximately twice	2 S-Cu/S-C	—	Text Approximate	p003 / 3 · Results and discussion · Fig. 1e