Detection of X-ray photons by solution-processed lead halide perovskites

Journal article
(Original article)


Publication Details

Author(s): Yakunin S, Sytnyk M, Kriegner D, Shrestha S, Richter M, Matt G, Azimi H, Brabec C, Stangl J, Kovalenko MV, Heiß W
Journal: Nature Photonics
Publication year: 2015
Volume: 9
Journal issue: 7
Pages range: 444-449
ISSN: 1749-4893


Abstract


The evolution of real-time medical diagnostic tools such as angiography and computer tomography from radiography based on photographic plates was enabled by the development of integrated solid-state X-ray photon detectors made from conventional solid-state semiconductors. Recently, for optoelectronic devices operating in the visible and near-infrared spectral regions, solution-processed organic and inorganic semiconductors have also attracted a great deal of attention. Here, we demonstrate a possibility to use such inexpensive semiconductors for the sensitive detection of X-ray photons by direct photon-to-current conversion. In particular, methylammonium lead iodide perovskite (CH3NH3PbI3) offers a compelling combination of fast photoresponse and a high absorption cross-section for X-rays, owing to the heavy Pb and I atoms. Solution-processed photodiodes as well as photoconductors are presented, exhibiting high values of X-ray sensitivity (up to 25 μC mGyair-1 cm-3) and responsivity (1.9 × 104 carriers/photon), which are commensurate with those obtained by the current solid-state technology.



FAU Authors / FAU Editors

Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Heiß, Wolfgang Prof. Dr.
Professur für Werkstoffwissenschaften (lösungsprozessierte Halbleitermaterialien)
Matt, Gebhard Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Richter, Moses
Institute Materials for Electronics and Energy Technology (i-MEET)
Shrestha, Shreetu
Institute Materials for Electronics and Energy Technology (i-MEET)


Additional Organisation
Energie-Campus Nürnberg (EnCN)
Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)


External institutions with authors

Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich
Johannes Kepler Universität (JKU) Linz


How to cite

APA:
Yakunin, S., Sytnyk, M., Kriegner, D., Shrestha, S., Richter, M., Matt, G.,... Heiß, W. (2015). Detection of X-ray photons by solution-processed lead halide perovskites. Nature Photonics, 9(7), 444-449. https://dx.doi.org/10.1038/nphoton.2015.82

MLA:
Yakunin, Sergii, et al. "Detection of X-ray photons by solution-processed lead halide perovskites." Nature Photonics 9.7 (2015): 444-449.

BibTeX: 

Last updated on 2019-03-06 at 17:05