Abstract
Metal halide perovskites represent a family of the most promising materials for fascinating photovoltaic and photodetector applications due to their unique optoelectronic properties and much needed simple and low-cost fabrication process. The high atomic number (Z) of their constituents and significantly higher carrier mobility also make perovskite semiconductors suitable for the detection of ionizing radiation. By taking advantage of that, the direct detection of soft-X-ray-induced photocurrent is demonstrated in both rigid and flexible detectors based on all-inorganic halide perovskite quantum dots (QDs) synthesized via a solution process. Utilizing a synchrotron soft-X-ray beamline, high sensitivities of up to 1450 µC Gyair−1 cm−2 are achieved under an X-ray dose rate of 0.0172 mGyair s−1 with only 0.1 V bias voltage, which is about 70-fold more sensitive than conventional α-Se devices. Furthermore, the perovskite film is printed homogeneously on various substrates by the inexpensive inkjet printing method to demonstrate large-scale fabrication of arrays of multichannel detectors. These results suggest that the perovskite QDs are ideal candidates for the detection of soft X-rays and for large-area flat or flexible panels with tremendous application potential in multidimensional and different architectures imaging technologies.
| Original language | English |
|---|---|
| Article number | 1901644 |
| Number of pages | 8 |
| Journal | Advanced Materials |
| DOIs | |
| Publication status | Accepted/In press - 6 Jun 2019 |
Keywords
- flexible and printable X-ray detectors
- ionizing radiation
- perovskites
- quantum dots
- soft X-rays
Cite this
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Flexible, printable soft-X-Ray detectors based on all-inorganic perovskite quantum dots. / Liu, Jingying; Shabbir, Babar; Wang, Chujie; Wan, Tao; Ou, Qingdong; Yu, Pei; Tadich, Anton; Jiao, Xuechen; Chu, Dewei; Qi, Dongchen; Li, Dabing; Kan, Ruifeng; Huang, Yamin; Dong, Yemin; Jasieniak, Jacek; Zhang, Yupeng; Bao, Qiaoliang.
In: Advanced Materials, 06.06.2019.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Flexible, printable soft-X-Ray detectors based on all-inorganic perovskite quantum dots
AU - Liu, Jingying
AU - Shabbir, Babar
AU - Wang, Chujie
AU - Wan, Tao
AU - Ou, Qingdong
AU - Yu, Pei
AU - Tadich, Anton
AU - Jiao, Xuechen
AU - Chu, Dewei
AU - Qi, Dongchen
AU - Li, Dabing
AU - Kan, Ruifeng
AU - Huang, Yamin
AU - Dong, Yemin
AU - Jasieniak, Jacek
AU - Zhang, Yupeng
AU - Bao, Qiaoliang
PY - 2019/6/6
Y1 - 2019/6/6
N2 - Metal halide perovskites represent a family of the most promising materials for fascinating photovoltaic and photodetector applications due to their unique optoelectronic properties and much needed simple and low-cost fabrication process. The high atomic number (Z) of their constituents and significantly higher carrier mobility also make perovskite semiconductors suitable for the detection of ionizing radiation. By taking advantage of that, the direct detection of soft-X-ray-induced photocurrent is demonstrated in both rigid and flexible detectors based on all-inorganic halide perovskite quantum dots (QDs) synthesized via a solution process. Utilizing a synchrotron soft-X-ray beamline, high sensitivities of up to 1450 µC Gyair−1 cm−2 are achieved under an X-ray dose rate of 0.0172 mGyair s−1 with only 0.1 V bias voltage, which is about 70-fold more sensitive than conventional α-Se devices. Furthermore, the perovskite film is printed homogeneously on various substrates by the inexpensive inkjet printing method to demonstrate large-scale fabrication of arrays of multichannel detectors. These results suggest that the perovskite QDs are ideal candidates for the detection of soft X-rays and for large-area flat or flexible panels with tremendous application potential in multidimensional and different architectures imaging technologies.
AB - Metal halide perovskites represent a family of the most promising materials for fascinating photovoltaic and photodetector applications due to their unique optoelectronic properties and much needed simple and low-cost fabrication process. The high atomic number (Z) of their constituents and significantly higher carrier mobility also make perovskite semiconductors suitable for the detection of ionizing radiation. By taking advantage of that, the direct detection of soft-X-ray-induced photocurrent is demonstrated in both rigid and flexible detectors based on all-inorganic halide perovskite quantum dots (QDs) synthesized via a solution process. Utilizing a synchrotron soft-X-ray beamline, high sensitivities of up to 1450 µC Gyair−1 cm−2 are achieved under an X-ray dose rate of 0.0172 mGyair s−1 with only 0.1 V bias voltage, which is about 70-fold more sensitive than conventional α-Se devices. Furthermore, the perovskite film is printed homogeneously on various substrates by the inexpensive inkjet printing method to demonstrate large-scale fabrication of arrays of multichannel detectors. These results suggest that the perovskite QDs are ideal candidates for the detection of soft X-rays and for large-area flat or flexible panels with tremendous application potential in multidimensional and different architectures imaging technologies.
KW - flexible and printable X-ray detectors
KW - ionizing radiation
KW - perovskites
KW - quantum dots
KW - soft X-rays
UR - http://www.scopus.com/inward/record.url?scp=85067347768&partnerID=8YFLogxK
U2 - 10.1002/adma.201901644
DO - 10.1002/adma.201901644
M3 - Article
JO - Advanced Materials
JF - Advanced Materials
SN - 0935-9648
M1 - 1901644
ER -