Open AccessDesigning Ultraflexible Perovskite X‐Ray Detectors through Interface Engineering
Author(s) -
Demchyshyn Stepan,
Verdi Matteo,
Basiricò Laura,
Ciavatti Andrea,
Hailegnaw Bekele,
Cavalcoli Daniela,
Scharber Markus Clark,
Sariciftci Niyazi Serdar,
Kaltenbrunner Martin,
Fraboni Beatrice
Publication year - 2020
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.202002586
Subject(s) - detector , conformable matrix , fabrication , limiting , perovskite (structure) , x ray detector , electronics , optoelectronics , materials science , interface (matter) , nanotechnology , physics , optics , electrical engineering , mechanical engineering , engineering , chemistry , crystallography , medicine , alternative medicine , pathology , composite material , capillary number , capillary action
X‐ray detectors play a pivotal role in development and advancement of humankind, from far‐reaching impact in medicine to furthering the ability to observe distant objects in outer space. While other electronics show the ability to adapt to flexible and lightweight formats, state‐of‐the‐art X‐ray detectors rely on materials requiring bulky and fragile configurations, severely limiting their applications. Lead halide perovskites is one of the most rapidly advancing novel materials with success in the field of semiconductor devices. Here, an ultraflexible, lightweight, and highly conformable passively operated thin film perovskite X‐ray detector with a sensitivity as high as 9.3 ± 0.5 µC Gy −1 cm −2 at 0 V and a remarkably low limit of detection of 0.58 ± 0.05 μGy s −1 is presented. Various electron and hole transporting layers accessing their individual impact on the detector performance are evaluated. Moreover, it is shown that this ultrathin form‐factor allows for fabrication of devices detecting X‐rays equivalently from front and back side.