Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector
PbSe/PbS Core/Shell Nanoplatelets with Enhanced Stability and Photoelectric Properties
Lead chalcogenide nanoplatelets (NPLs) have emerged as a promising material for devices operating in the near IR and IR spectrum region. Here, we first apply the cation exchange method to PbSe/PbS core/shell NPL synthesis. The shell growth enhances NPL colloidal and environmental stability, and passivates surface trap states, preserving the main core physical properties. To prove the great potential for optoelectrical applications, we fabricate a photoconductor using PbSe/PbS NPLs. The device demonstrates enhanced conductivity and responsivity with fast rise and fall times, resulting in a 13 kHz bandwidth. The carrier transport was investigated with the field effect transistor method, showing p-type conductivity with charge mobility of 1.26 × 10−2 cm2·V−1·s−1.
» Author: Anton A. Babaev
» Reference: doi: 10.3390/nano13233051
» Publication Date: 29/11/2023
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 768737
