Noncovalent Functionalization of Black Phosphorus

Abstract

Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under http://dx.

Advanced Phosphorus‐Based Materials for Lithium/Sodium‐Ion Batteries: Recent Developments and Future Perspectives

“…[24][25][26] Phosphorus, however, has been demonstrated as one of the most promising candidates on account of its abundant reserve (Figure 1a) High-performance and lost-cost lithium-ion and sodium-ion batteries are highly desirable for a wide range of applications including portable electronic devices, transportation (e.g., electric vehicles, hybrid vehicles, etc. Due to BP's intrinsic characters in tunable band gap, efficient charge transport and superior conducting property, [34,35] it also has appealed to a great deal of attention in many fields such as field-effect transistors, [36][37][38] anisotropic transport, [39,40] and optoelectronic devices. Great research efforts have been devoted to developing alternative anode materials with superior electrochemical properties since the anode materials used are closely related to the capacity and safety characteristics of the batteries.…”

Chemistry of Layered Pnictogens: Phosphorus, Arsenic, Antimony, and Bismuth

“…Since the surfaces of pnictogens can interact with various molecules, especially with large molecules containing electron‐deficient centers, the non‐covalent functionalization of pnictogens is a very promising strategy to modify and protect pnictogen surfaces. Recently the use of electron‐deficient 7,7,8,8‐tetracyano‐ p ‐quinodimethane (TCNQ) molecule was reported for non‐covalent functionalization of black phosphorus . Electron‐rich systems, such as phosphorene sheets, can strongly interact with electron acceptors such as the above‐mentioned TCNQ.…”

Isomerically Pure Star‐Shaped Triphenylene–Perylene Hybrids Involving Highly Extended π‐Conjugation

“…Moreover, when CVD graphene substrates are used—in which π‐aromatic molecules tend to lie with the aromatic cores parallel to the surface, stabilized by van der Waals interactions—a very homogeneous fluorescence quenching was detected by Raman spectroscopy in the range of millimeters (Figure ). It is worth noting that normally it is not possible to measure Raman spectra of fluorescent molecules, however by noncovalently binding to graphene or related 2D materials, a fluorescence quenching of the dye can be obtained as a consequence of an electron/energy transfer . The homogeneity of the films was characterized by means of SRM on areas of 30×30 μm 2 , measuring with 1 μm steps ( > 900 single point spectra) and by using a grating of 1800 grooves mm −1 (Figure a and Figures S12–13 in the Supporting Information).…”

“…Finally, we explored the self‐assembly of these molecules on graphene substrates by optical microscopy, scanning Raman microscopy, and AFM, showing the favorable processability of these star‐shaped molecules. This work represents the first example of separation of constitutional isomers of disk‐shaped polycyclic aromatic molecules, which can be clearly distinguished by means of several spectroscopic techniques thanks to its enhanced processability, and could be efficiently used for noncovalently functionalized graphene and related 2D materials …”