Paper Info
Title
Characteristics Of A Hybrid Detector Combined With A Perovskite Active Layer For Indirect X-Ray Detection
Abstract
In this study, we investigated the characteristics of an organic-inorganic hybrid indirect-type X-ray detector with a CH3NH3PbI3 (MAPbI(3)) perovskite active layer. A layer with a thickness of 192 nm annealed at 100 degrees C showed higher absorption, higher crystallinity, and lower surface roughness than did perovskite layers made under different conditions. In the indirect X-ray detector, a scintillator coupled with the detector to convert X-ray photons to visible photons, and the converted photons were absorbed by the active layer to generate charge carriers. The detector with the optimized MAPbI(3) (192 nm thick and 100 degrees C annealing condition) active layer was coupled with a CsI(Tl) scintillator which consisted of 400 mu m thick CsI and 0.5 mm thick Al, and achieved the highest sensitivity, i.e., 2.84 mA/Gy center dot cm(2). In addition, the highest short-circuit current density (J(SC)), i.e., 18.78 mA/cm(2), and the highest mobility, i.e., 2.83 x 10(-4) cm(2)/V center dot s, were obtained from the same detector without the CsI(Tl) scintillator.
Year
DOI
Venue
2020
10.3390/s20236872
SENSORS
Keywords
DocType
Volume
perovskite active layer, indirect X-ray detector, hybrid detector
Journal
20
Issue
ISSN
Citations 
23
1424-8220
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Hailiang Liu100.68
Jehoon Lee200.68
Jung Won Kang316612.60