Aynehband, Samaneh published the artcileEfficient FAPbI3-PbS quantum dot graphene-based phototransistors, Safety of N-Methylformamide, the main research area is formamidinium lead iodide sulfide quantum dot graphene phototransistor.
The high mobility of charge carriers in graphene (G) together with the ease of processing and tunable optical properties of colloidal quantum dots (CQD) has provided high-performance hybrids for the next generation of phototransistors. In order to get a higher quality film of PbS QDs, understanding the effect of the ligand exchange method is critical So, to improve the interdot electronic coupling, we propose a new conducting ligand to prepare a dense and self-assembled active layer of FAPbI3-PbS quantum dots on G/Si/SiO2 substrates. Quantum dot (QD) nanocrystalline films were prepared via two different procedures: liquid phase ligand exchange (LPE) and solid phase ligand exchange (SPE). SPE with formamidinium lead iodide significantly increases the packing d. and surface coverage of the active layer on the graphene substrate. Efficient light absorption in the near IR region and reduced charge transport resistance in the QD film are demonstrated. The SPE fabricated graphene-based heterostructure phototransistors exhibit improved specific detectivity (by 34%) and ION/IOFF ratio (by 23%) as compared with LPE. Our findings pave a way to develop high-throughout graphene-based phototransistors based on FAPbI3-CQDs.
New Journal of Chemistry published new progress about Electric current-potential relationship. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Safety of N-Methylformamide.
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics