Preparation of solution processed photodetectors comprised of two-dimensional tin(ii) sulfide nanosheet thin films assembled via the Langmuir–Blodgett method

Abstract

Norton et al. report the manufacture of fully solution processed photodetectors based on two-dimensional tin(ii) sulfide assembled via the Langmuir–Blodgett method.

Study on chemical synthesis of SnSSe nanosheets and nanocrystals

“…Since the size of nanodot and nanorod was obviously large compared to the exciton Bohr radius, it is expected that the quantum size effect hardly appeared. Considering the indirect bandgap energy of 0.80 eV in bulk SnSe and that of 0.92 eV in bulk SnS, 45,46) the energy values of SnS 0.5 Se 0.5 nanodot and SnS 0.1 Se 0.9 nanorod are quite reasonable. On the other hand, the bandgap energy of SnSe nanosheet was higher than that of SnS 0.1 Se 0.9 nanorod and SnS 0.5 Se 0.5 nanodot.…”

Controllable-assembled functional monolayers by the Langmuir–Blodgett technique for optoelectronic applications

“…Fabrication of large-area, ordered, thickness-tunable nanowire materials at the gas-liquid interface with low environmental requirements for preparation, makes the LB method suitable for application in the field of photoelectric detection. 150,151,172,214 As shown in Fig. 11E, Wang et al realized the highly integrated thin film fabrication of KCu 7 S 4 semiconductor nanowires by the LB technique.…”

“…Kane et al demonstrated a method to assemble LB thin films of SnS 2D nanosheets. 150 Homogeneous films at the gas–liquid interface formed using SnS nanosheets with an average peel thickness of 33 nm with chloroform as the diffusion solvent were deposited onto Si/SiO 2 substrates (94.4% surface coverage), exhibiting excellent photo-response properties. Mao et al constructed large-area homogeneous black phosphorus (BP) nanosheet films by mixing with C 60 , which effectively suppresses the face-to-face stacking phenomenon between BP nanosheets, showing the potential for photovoltaic applications.…”

“…And a 2D SnS nanosheet can also form an assembled film by the LB technique to construct a prototype device of the photodetector with a full-solution process. 150 Since the LB technique offers a wide range of substrates for the deposition of thin films, photoresponsive films on substrates with different properties are prepared. After testing, they selected the Si/SiO 2 -based substrate system with semiconductivity and photo responsiveness under a certain bias.…”

Synthesis and characterisation of Ga- and In-doped CdS by solventless thermolysis of single source precursors

“…42 Single source precursors (SSPs) such as metal xanthate and metal dithiocarbamate complexes are also favourable as they have pre-arranged M-S bonds and therefore enable an atom-up approach towards metal sulfides. 42 SSPs have been demonstrated as a scalable, facile, low-temperature and fast route towards particulate, [43][44][45] thin film, 41,[46][47][48] and nanomaterial [49][50][51][52][53] metal sulfides. It has also been demonstrated that by altering the chemistry of the SSPs and the environment of the decomposition of the precursors, shape, size, and phase control is possible.…”