Flexible and Ultrasoft Inorganic 1D Semiconductor and Heterostructure Systems Based on SnIP

Abstract

Low dimensionality and high flexibility are key demands for flexible electronic semiconductor devices. SnIP, the first atomic‐scale double helical semiconductor combines structural anisotropy and robustness with exceptional electronic properties. The benefit of the double helix, combined with a diverse structure on the nanoscale, ranging from strong covalent bonding to weak van der Waals interactions, and the large structure and property anisotropy offer substantial potential for applications in energy conversion and water splitting. It represents the next logical step in downscaling the inorganic semiconductors from classical 3D systems, via 2D semiconductors like MXenes or transition metal dichalcogenides, to the first downsizeable, polymer‐like atomic‐scale 1D semiconductor SnIP. SnIP shows intriguing mechanical properties featuring a bulk modulus three times lower than any IV, III‐V, or II‐VI semiconductor. In situ bending tests substantiate that pure SnIP fibers can be bent without an effect on their bonding properties. Organic and inorganic hybrids are prepared illustrating that SnIP is a candidate to fabricate flexible 1D composites for energy conversion and water splitting applications. SnIP@C3N4 hybrid forms an unusual soft material core–shell topology with graphenic carbon nitride wrapping around SnIP. A 1D van der Waals heterostructure is formed capable of performing effective water splitting.

Metal/semiconductor interfaces in nanoscale objects: synthesis, emerging properties and applications of hybrid nanostructures

“…221 It is important to stress that not all phosphides have metal-like properties, and various semiconductors are constantly synthesized and their properties are investigated, for example 1D SnIP. 222 In the eld of electrocatalysis various suldes, phosphides, nitrides, oxides and (oxy)hydroxides are common catalysts, which are deposited on a substrate that serves as the electrode and they enhance either or both the activity and stability (for example, due to higher stability than the Si substrate in a strong alkaline environment). [223][224][225][226][227] A common starting high-specic-surface-area metallic substrate is nickel foam (NF), on which gas-phase electrodeposition and a variety of solvothermal reactions are used to deposit the metallic catalyst.…”

Revealing and Attenuating the Electrostatic Properties of Tubulin and Its Polymers

“…However, when solutions stabilized in >80% DMSOT were imaged, mixtures of 2D tubulin sheets and tubulin aggregates were observed (Figure 2b). To investigate their surface charge, 2D sheets of fluorine‐doped graphitic carbon nitride (g‐C 3 N 4 ; a negatively surface charged fluorophore; zeta potential = − 26.8 mV) [ 64–66 ] were introduced into tubulin polymer solutions. Interestingly, the g‐C 3 N 4 sheets colocalized to tubulin sheets in >80% DMSOT solutions, validating the presence of a positive surface charge on tubulin (Figure 2e) under these conditions.…”

Bildungsmechanismen für Phosphoren und SnIP

“…[2] Phosphoren ist ein wichtiges 2D-Material mit einem breiten Anwendungsspektrumi nu nterschiedlichen Te chnologiezweigen. [3] Beispiele hierfürsind Sensoren, [4] Feldeffekttransistoren (sog.FETs), [5] Wasserspaltungskatalysatoren zur Wasserstoffherstellung [6] oder Aktivmaterialien fürB atterien. [7] Monoschicht-und Multischicht-Phosphormaterialien werden von Quantenchemikern und Physikern wegen ihrer strukturellen Flexibilität [8] (als Einzelschicht), ihrer Va riabilitäti nd er Stapelfolge und aufgrund von MoirØ-bedingten optischen Übergangen (Doppel-und Multischicht) ge-schätzt.…”