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Flexible X‐ray detector based on sliced lead iodide crystal
Author(s) -
Sun Hui,
Zhao Beijun,
Yang Dingyu,
Wangyang Peihua,
Gao Xiuying,
Zhu Xinghua
Publication year - 2017
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201600397
Subject(s) - detector , photocurrent , materials science , crystal (programming language) , optoelectronics , optics , semiconductor , x ray detector , physics , computer science , programming language
A promising flexible X‐ray detector based on inorganic semiconductor PbI 2 crystal is reported. The sliced crystals mechanically cleaved from an as‐grown PbI 2 crystal act as the absorber directly converting the impinging X‐ray photons to electron hole pairs. Due to the ductile feature of the PbI 2 crystal, the detector can be operated under a highly curved state with the strain on the top surface up to 1.03% and still maintaining effective detection performance. The stable photocurrent and fast response were obtained with the detector repeated bending to a strain of 1.03% for 100 cycles. This work presents an approach for developing efficient and cost‐effective PbI 2 ‐based flexible X‐ray detector.Photocurrent responses of the flexible PbI 2 X‐ray detector with the strain on the top surface up to 1.03% proposed in this work with the cross sectional structure and curved detector photograph as insets. (© 2016 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim)