Amorphous lead oxide (a-PbO): suppression of signal lag via engineering of the layer structure.

ABSTRACT: Presence of a signal lag is a bottle neck of performance for many non-crystalline materials, considered for dynamic radiation sensing. Due to inadequate lag-related temporal performance, polycrystalline layers of CdZnTe, PbI₂, HgI₂ and PbO are not practically utilized, despite their superior X-ray sensitivity and low production cost (even for large area detectors). In the current manuscript, we show that a technological step to replace nonhomogeneous disorder in polycrystalline PbO with homogeneous amorphous PbO structure suppresses signal lag and improves time response to X-ray irradiation. In addition, the newly developed amorphous lead oxide (a-PbO) possesses superior X-ray sensitivity in terms of electron-hole pair creation energy [Formula: see text] in comparison

SUBMITTER: Semeniuk O 

PROVIDER: S-EPMC5643314 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature