Dimensionality-tailored pure organic semiconductor with high hole mobility for low-dose x-ray imaging.

ABSTRACT: Pure-organic semiconductors have attracted broad interest in tissue-equivalent and biocompatible X-ray sensors, while their low-dose X-ray imaging capability still suffers from poor charge transport properties. Here, we report a dimensionality tailoring method to enhance hole transport in pure-organic semiconductors, enabling highly stable and low-dose X-ray detection and imaging without toxic elements such as Pb or Hg. By substituting the -CN group in 4-hydroxycyanobenzene (4HCB, HO-C₆H₄-CN) with a -COOCH₃ group, we transform the two-dimensional (2D) structure into a three-dimensional (3D) 4-methyl hydroxybenzoate (4MHB, HO-C₆H₄-COOCH₃) crystal featuring enhanced intermolecular π-π stacking. This structural reconfiguration

SUBMITTER: Geng J 

PROVIDER: S-EPMC12644751 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature