Recent Advances in Chemical Functionalization of 2D Black Phosphorous Nanosheets

Abstract

BPNSs can be mechanically peeled off from bulk BP crystals using scotch-tape. [37] Although this method can produce high quality 2D BPNSs in a simple and cost-effective manner, the obtained BPNSs show inhomogeneous size, poor repeatability, and extremely low production yield. To obtain BPNSs in a high yield, several alternative methods were employed including metal assisted mechanical exfoliation [102] and exfoliation using polydimethylsiloxane (PDMS) stamp, [70] viscoelastic stamp using blue Nitto tape, [103] and poly(methyl methacrylate)/poly(vinyl alcohol) stack. [104] In another approach, Zhu and co-workers reported a large-scale preparation of relatively stable BPNSs through high energy solid-state mechanical ball milling of bulk BP in the presence of an additive LiOH. [105] The high-energy mechanical milling facilitates the generation of free radicals at the edges by breaking the PP bonds and thus leads to the formation of stable hydroxyl functionalized BPNSs. In addition, this method has been widely utilizing as an efficient method to synthesize functionalized BPNSs for various applications. [106,107] Adv. Sci. 2020, 7, 1902359 3.20-3.73 Å a 1L 2L 3L Bulk Armchair b

Black Phosphorus@Laser‐Engraved Graphene Heterostructure‐Based Temperature–Strain Hybridized Sensor for Electronic‐Skin Applications

“…In addition, the strategy of noncovalent functionalization also improves the charge transport properties. [ 28 ]…”

Covalent functionalization of two-dimensional black phosphorus nanosheets with porphyrins and their photophysical characterization

“…During the past few years, as one of the post graphene twodimensional (2D) materials, 1-7 black phosphorus nanosheets (BPNSs) have attracted tremendous attention due to their unique properties such as high charge carrier mobility, thickness dependent tunable direct band gap and strong inplane anisotropy. [8][9][10][11][12] 2D BPNSs hold potential applications in the fields of photocatalysis, biomedicines, batteries, supercapacitors, field effect transistors (FETs), optoelectronics and sensing devices. [13][14][15][16][17][18][19][20][21] However, the poor ambient stability of BPNSs limits their practical application.…”

Fabrication of Graphene‐Based Self‐Assembly Monoliths through Reversible Fluorination and Defluorination Strategy

“…Graphene, as the most important new material in 21st century, has given rise to ever‐rising attentions due to its excellent mechanical and chemicophysics properties, which thus is omnipresently applied in fields, such as energy, [ 1,2 ] catalyst, [ 3 ] lubrication, [ 4 ] separation, [ 5 ] and communication. [ 6 ] More importantly, it initiates research upsurge of 2D materials around the world, including its derivatives, [ 7 ] graphdiyne, [ 8 ] phosphorene, [ 9 ] transition metal dichalcogenide, [ 10 ] perovskite, [ 11 ] and so on. However, from laboratory to practical applications, an acknowledged challenge lies across graphene‐based materials, that is, mono/few layer graphene nanosheets are difficult to rapidly, orderly and compactly assemble into macrostructures (film, monoliths, fiber, complicated shape, and gel) with excellent performances, which tremendously restricts further practical applications.…”