Mithrene is a self-assembling robustly blue luminescent metal-organic chalcogenolate assembly for 2d optoelectronic applications

2materials

5samples

4synthesis routes

8measurements

26results

5claims and caveats

Evidence map

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Microscopy Morphology5 measurements12 results →Diffraction Structure2 measurements7 results →Spectroscopy1 measurement7 results →

Author interpretations and caveats

Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.

Application RelevanceSupport assessment: High

The authors position mithrene as a model semiconducting/optoelectronic material for future sensors or devices, but do not report a fabricated device, electrical transport, porosity, thermoelectric or electrochemical performance in this paper.

Caveat: Application relevance is prospective and based on robust luminescence/structure rather than device metrics.

main pp.1 and 7, article pp.3498 and 3504 · Abstract; Conclusions · Linked to 2 structured results

Phase AssignmentSupport assessment: High

GIWAXS shows that mithrene keeps the same crystalline phase across the concentration-induced morphology series.

Caveat: High silver conditions show peak broadening, smoothing, strain and amorphous halos from MOCP, but no q-position shifts implying new phases.

main p.6, article p.3503 · Crystal Structure Is Conserved across All Morphologies · Figures 8-10 · Linked to 3 structured results

Structure Property LinkSupport assessment: High

Blue photoluminescence is a reliable proxy for the crystalline mithrene phase across all studied morphologies.

Caveat: Defective/distorted crystal populations can show a small 5-10 nm red-shift and broadening.

main pp.1 and 7, article pp.3498 and 3504 · Abstract; Conclusions · Figures 3 and 7-10 · Linked to 2 structured results

Synthesis MechanismSupport assessment: High

Silver nitrate concentration is the critical synthetic variable controlling mithrene crystal morphology and MOCP abundance.

Caveat: DPSe concentration weakly correlated with crystal thickness, and local film nonuniformity was observed.

main pp.1 and 4, article pp.3498 and 3501 · Abstract; Role of Metal Ion Concentration · Figures 4-5 · Linked to 3 structured results

Synthesis MechanismSupport assessment: Medium

CTAB surfactant modifies mithrene growth on the {001} facet, producing asymmetric Janus crystals with pillar-like decoration.

Caveat: The authors describe the mechanistic explanation as a hypothesis and leave the exact role of capping, adhesion, and mass transport for further work; CTAB concentration is internally inconsistent.

main p.4, article p.3501 · Role of Metal Ion Concentration on Crystal Morphology · Figure 6 · Linked to 1 structured result

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

Material	Composition	Structure context	Source
Mithrene, crystalline silver benzeneselenolate	[AgSePh]nSilver-selenolate coordination polymer layers; Ag:Se ratio reported as 1:1 for the crystalline phase. · Benzeneselenolate/phenylselenolate units generated from diphenyl diselenide.	2D · PristineLayered lamellar metal-organic chalcogenolate assembly with ultrathin inorganic 2D selenolate nanosheets and organic phenyl side groups; GIWAXS/XRD indexed to the previously reported silver benzeneselenolate structure.	main p.2, article p.3499 · Synthesis and Optoelectronic Uniformity of Mithrene · Figure 1
Silver-rich amorphous metal-organic chalcogenolate polymer by-product	not fully assigned; EDS suggests Ag:Se about 2:1Silver-rich amorphous Ag-Se coordination polymer matrix. · Phenylselenolate-derived organic chalcogenolate species.	unknown · UnknownFibrous/threadlike amorphous non-luminescent metal-organic coordination polymer co-evolving with mithrene crystals.	main p.3, article p.3500 · Synthesis and Optoelectronic Uniformity of Mithrene · Figures S3-S4

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 5 sample records

Sample	Form and role	Processing and geometry	Source
Bulked mithrene powder from about 50 reactionsresearch_0867__mat__mithrene_agseph	Powder · Target Sample · Pristine Framework	Products from about 50 individual 3 mM/3 mM reactions bulked in isopropanol, isolated by ultracentrifugation/decanting, and deposited on silicon.Deposited on silicon wafer for GIWAXS/PXRD-related characterisation · not reported	main p.5, article p.3502 · Crystal Structure Is Conserved across All Morphologies · Figure 8a and Figure S9
Mithrene concentration and growth-time screening samplesresearch_0867__mat__mithrene_agseph	Thin Film · Target Sample · Pristine Framework	AgNO3 and DPSe concentrations screened over 0.5-10 mM with 3, 5 and 10 day growth times.Silicon substrate for harvested films; glass coverslips for some fluorescence measurements · not directly measured; relative thickness inferred optically	main p.4, article p.3501 · Role of Metal Ion Concentration on Crystal Morphology · Figure 4
CTAB-modified Janus mithrene crystallitesresearch_0867__mat__mithrene_agseph	Thin Film · Target Sample · Pristine Framework	Grown with CTAB in the aqueous silver nitrate layer; isolated by pipetting/decanting layers, sonication in isopropanol and drop-casting.Drop-cast onto substrate from isopropanol suspension after CTAB-modified harvest · not reported	main p.4, article p.3501 · Role of Metal Ion Concentration on Crystal Morphology · Figure 6
Standard 3 mM/3 mM mithrene crystals harvested on siliconresearch_0867__mat__mithrene_agseph	Thin Film · Target Sample · Pristine Framework	Biphasic toluene-water interface product harvested by passing silicon substrate through the interface; dried by forced air and rinsed with isopropanol.Silicon wafer/substrate · crystallite thickness about 100 nm; interlamellar spacing 1.4 nm	main p.2, article p.3499 · Synthesis and Optoelectronic Uniformity of Mithrene · Figure 2
MOCP matrix co-evolved with mithreneresearch_0867__mat__mocp_ag_se_byproduct	Thin Film · Unknown · Unknown	Co-precipitated at the toluene-water interface with mithrene crystals and transferred as part of the film.Silicon substrate for SEM/EDS films · not quantified; thickness and coverage increase with crystallisation time and silver nitrate concentration	SI p.S-4 · Supporting Information · Figure S3