02025nas a2200277   4500008004100000022001400041245012200055210006900177260000800246300001100254490000800265520107100273653002501344653002401369653000901393653001401402100002501416700002601441700002801467700002601495700002301521700002401544700002301568700002501591856013101616       2022                        eng d  a0921-510700aEnhanced field emission behaviour from ethylene glycol mediated synthesis of 2D hexagonal SnS2 disc with nanoparticle0 aEnhanced field emission behaviour from ethylene glycol mediated   cOCT  a1158650 v2843 a<p>
	Herein, octahedron and stacked 2D hexagonal disc - like nanostructures of SnS2 were obtained by hydrothermal and ethylene glycol mediated hydrothermal methods, respectively. Attempt has been made to shade light on the plausible growth mechanism. Liquid phase exfoliation followed by centrifugation process leads to presence of tiny single crystalline SnS2 nanoparticles (similar to 5 nm) on the hexagonal discs over C substrate, characterized by preferred growth along {001} direction. The observed Raman shift and enhanced intensities of A(1g) and E-g modes infer charge interactions between the SnS2 disc and C substrate. Interestingly, the SnS2-C emitter exhibited superior field emission (FE) behaviour due to the unique morphology, excellent charge transfer, and reduced work function (similar to 4.1 eV). Here the extraction of large current density of similar to 1137 mu A/cm(2) at an applied field of 3.72 V/mu m, with good emission current stability. The present strategy is beneficial to design architectured morphology for multi-functionality.</p>
10a2D layered materials10aField Emission (FE)10aSnS210aSnS2 on C1 aMutadak, Pallavi, R.1 aChaudhari, Nilima, S.1 aGadhave, Dattatraya, C.1 aRajput, Parikshit, K.1 aKolekar, Sadhu, K.1 aLate, Dattatray, J.1 aMore, Mahendra, A.1 aWarule, Sambhaji, S.  uhttps://library.ncl.res.in/content/enhanced-field-emission-behaviour-ethylene-glycol-mediated-synthesis-2d-hexagonal-sns2-disc02419nas a2200265   4500008004100000245014000041210006900181260000900250300001600259490000600275520156400281653000701845653000801852653001901860653001801879653000901897653000801906100001601914700001801930700001901948700001801967700001901985700001902004856013002023       2025                        eng d00aWS2 nanoparticle-decorated, vertically aligned SnS2-based high-performance heterostructures for ambient-stable ultrafast photodetection0 aWS2 nanoparticledecorated vertically aligned SnS2based highperfo  cOCT   a21047-210560 v83 a<p>
	The development of visible-light photodetectors with high responsivity, rapid response, and long-term ambient stability remains a critical challenge in optoelectronics. Here, we report a high-performance photodetector based on a vertically aligned SnS2 film interfaced with WS2 nanoparticles, forming a p-n heterojunction. This device is fabricated using a scalable two-step method-chemical vapor deposition (CVD) for SnS2 growth and solution-based drop-casting for WS2 deposition-enabling precise control over the heterointerface, but trap states are inevitable due to the use of thermal CVD and the drop-casting method. The resulting photodetector exhibits remarkable optoelectronic characteristics, including a responsivity of 0.76 A/W, a detectivity of 7.56 x 10(11) Jones, a photo-to-dark current ratio of 119, and a fast rise time of 0.297 ms under visible illumination. These performance metrics are directly attributed to the optimized heterointerface, where the built-in electric field at the nanoscale WS2/SnS2 junctions promotes efficient charge separation and minimizes recombination losses. Notably, the device retains over 95% of its initial performance even after 1 week of ambient exposure, highlighting its superior environmental robustness. This work introduces an interface-engineering strategy that leverages the unique electronic properties of earth-abundant, nontoxic two-dimensional materials, offering a viable pathway for scalable, high-speed, and stable photodetectors suitable for next-generation optoelectronic systems.</p>
10a2D10aCVD10aheterojunction10aphotodetector10aSnS210aWS21 aDas, Chayan1 aKumar, Suresh1 aSharma, Anjali1 aKumar, Mahesh1 aRath, Arup, K.1 aSahu, Satyajit  uhttps://library.ncl.res.in/content/ws2-nanoparticle-decorated-vertically-aligned-sns2-based-high-performance-heterostructures