Porphyrin covalently functionalized MoS2 nanosheets: “Click” synthesis and tunable nonlinear absorption

When porphyrins meet 2D materials: spectroscopic and photocatalytic properties

“…The research presented by Wei et al focused on covalently functionalized MoS 2 with Por obtained by a thiol–ene “click” reaction. 180 Optical experiments revealed that the MoS 2 –Por nanohybrid shows reverse saturable absorption in response to femtosecond pulsed laser light at 800 nm, a distinct behavior compared to the saturable absorption observed with standard MoS 2 nanosheets. This notable change in the optical response was attributed to an increase in two-photon absorption in the MoS 2 nanosheets, which can be the result of effective charge transfer processes in the excited state of the MoS 2 –Por hybrid.…”

0D MXene quantum dots/2D MXene derived metal–organic frameworks for enhanced nonlinear optical absorption across spectral and temporal regimes

“…5d provides insight into the Z-scan NLO performance, and Table S3 (ESI †) summarizes the linear and NLO parameters of all samples under the same pulse energy of 60 nJ in the fs regime of 800 nm. Remarkably, it has been found that charge transfer can occur on the fs time scale in heterostructures with strong electronic coupling, [7][8][9] but such NLO performance towards fs pulsed laser has not been reported in any MOF-based hybrids in the literature to date. Ti 3 C 2 QD/V 2 C PMOF heterostructure features a more pronounced RSA than a single component, as evidenced by a gradually decreased T min with the increase of input fluence from 20 to 60 nJ in Fig.…”

“…Nonlinear optical (NLO) materials play a pivotal role in various optical applications, such as optical limiting, optical switching, optical communications, and so on. [1][2][3] A wide range of materials has captured significant attention, including graphene, [4][5][6] transition metal sulfides, [7][8][9][10][11][12][13] black phosphorus, 14,15 perovskite, [16][17][18] polymers, 19,20 and MXene, [21][22][23][24][25][26] among others. Within these NLO materials, metal-organic frameworks (MOFs), [27][28][29] boasting tunable structures and diverse compositions, have emerged as ideal materials for NLO applications.…”

Insulating 6,6‐Phenyl‐C61‐butyric Acid Methyl Ester on Transition‐Metal Dichalcogenides: Impact of the Hybrid Materials on the Optical and Electrical Properties

“…The reactivity of TMDs is mainly located at the edges, which contain a high concentration of defects such as chalcogen vacancies. Concretely, thiols [22][23][24][25][26] or disulfanes [27] react with chalcogen vacancies of TMDs and, in addition, are able to carry molecules or quantum dots. [28] Disulfanes has been extensively employed to functionalize the edges of layered MoS 2 and WS 2 with chromophores such as porphyrins, [29] phthalocyanines, [30] or perylenes.…”