X-ray and γ-ray Sensing from Aqueous-Based Lead Sulfide Telluride Nanocomposites.

ABSTRACT: Lead chalcogenides (PbS, PbSe, and PbTe) are exceptional semiconductors for a variety of applications that exploit their unique combination of heavy atomic mass and high charge mobility. For sensors of energetic quanta such as X-rays and γ-rays, the de-coupling of electronic and phononic modes can deliver high intrinsic energy resolution at room temperature. Thus far, the lack of a simple, effective fabrication procedure for making large-volume percolating networks has prevented the exploitation of these materials. Here, a synthesis strategy is reported that utilizes aqueous colloids of PbS_xTe_y nanoparticles that are grafted upon an aramid nanofiber scaffold, such that excellent charge transport is realized throughout the size-scalable solids. When sensing individual

SUBMITTER: Le VD 

PROVIDER: S-EPMC12696808 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature