Article
Chemistry, Multidisciplinary
Lulu Liu, Weijun Li, Xiaopeng Feng, Chunjie Guo, Huimao Zhang, Haotong Wei, Bai Yang
Summary: Metal halide perovskite scintillators have high quantum yields and great potential in indirect ionizing radiation detection. However, the afterglow phenomenon limits their fast development. A new type of hybrid X-ray detector wafer, combining direct methylamine lead iodide (MAPbI(3)) semiconductor and indirect cesium copper iodide (Cs3Cu2I5) scintillator, reduces the device response time to X-rays and improves the detection capability. The hybrid wafer also demonstrates improved operation stability.
Article
Multidisciplinary Sciences
Ihor Cherniukh, Gabriele Raino, Thilo Stoeferle, Max Burian, Alex Travesset, Denys Naumenko, Heinz Amenitsch, Rolf Erni, Rainer F. Mahrt, Maryna I. Bodnarchuk, Maksym V. Kovalenko
Summary: Through precise structural engineering, perovskite nanocrystals are co-assembled with other nanocrystal materials to form a range of binary and ternary perovskite-type superlattices that exhibit superfluorescence. These ABO3 superlattices, as well as the binary NaCl and AlB2 superlattice structures that we demonstrate, exhibit a high degree of orientational ordering of the CsPbBr3 nanocubes. They also exhibit superfluorescence – a collective emission that results in a burst of photons with ultrafast radiative decay (22 picoseconds) that could be tailored for use in ultrabright (quantum) light sources.
Article
Physics, Applied
Xiangshun Geng, Hainan Zhang, Jun Ren, Peiyi He, Peigen Zhang, Qixin Feng, Kai Pan, Guanhua Dun, Fangwei Wang, Xinran Zheng, He Tian, Dan Xie, Yi Yang, Tian-Ling Ren
Summary: Organic-inorganic hybrid perovskites show unprecedented advantages for x-ray photon detection. Controlling the temperature gradient during synthesis can effectively improve crystal quality and lead to higher detection sensitivity. This work presents a strategy to construct high-performance direct x-ray detectors.
APPLIED PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Lei Pan, Indra Raj Pandey, Antonino Miceli, Vladislav V. Klepov, Duck Young Chung, Mercouri G. Kanatzidis
Summary: A perovskite CsPbBr3 single-crystal detector capable of operating at high X-ray fluxes is reported. The detector shows good performance in terms of gamma-ray energy resolution, dark current, photocurrent linearity, and reproducibility at different X-ray energy levels. It is anticipated that CsPbBr3 detectors will have wide application in high-flux X-ray detection.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Shanshan Jia, Yingrui Xiao, Mingxin Hu, Xilai He, Nuo Bu, Nan Li, Yucheng Liu, Yunxia Zhang, Jian Cui, Xiaodong Ren, Kui Zhao, Ming Liu, Shubo Wang, Ningyi Yuan, Jianning Ding, Zhou Yang, Shengzhong(Frank) Liu
Summary: Lead halide perovskite-based X-ray detectors exhibit high sensitivity and low detection limit, showing potential for use in next-generation radiation detection. The diode-structured devices show unusually high photocurrent gain under small reversed bias voltage. Further research reveals that ion migration and accumulation in the perovskite material are responsible for the unique photoconductor properties observed in the devices.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Chemistry, Multidisciplinary
Qingyue Cui, Nuo Bu, Xinmei Liu, Haojin Li, Zhuo Xu, Xin Song, Kui Zhao, Shengzhong Frank Liu
Summary: In this study, a flexible X-ray detector based on a novel molecular perovskite, DABCO-CsBr3, was designed. The detector showed mechanical robustness and high performance. By combining DABCO-CsBr3 with poly(vinylidene fluoride), a flexible X-ray detector was successfully fabricated. This research enriches the molecular perovskite family and highlights their potential for next-generation eco-friendly and wearable optoelectronic devices.
Article
Materials Science, Multidisciplinary
Atanu Jana, Sangeun Cho, Supriya A. Patil, Abhishek Meena, Yongcheol Jo, Vijaya Gopalan Sree, Youngsin Park, Hyungsang Kim, Hyunsik Im, Robert A. Taylor
Summary: Halide perovskites are promising materials in various applications such as solar energy, optoelectronics, and medical imaging. With their excellent performance and low cost, halide perovskites could potentially replace traditional materials and play a significant role in high-energy radiation detection.
Article
Chemistry, Multidisciplinary
Babar Shabbir, Jae Choul Yu, Tharindu Warnakula, R. A. W. Ayyubi, James A. Pollock, M. Mosarof Hossain, Jueng-Eun Kim, Nasiruddin Macadam, Leonard. W. T. Ng, Tawfique Hasan, Doojin Vak, Marcus J. Kitchen, Jacek J. Jasieniak
Summary: This study introduces an X-ray detector based on solution-processed thin-film metal halide perovskite, which can operate in the range of 0.1 to tens of kiloelectron volts of soft and hard X-ray energies with excellent electrical properties.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Xinyuan Du, Jiapu Li, Guangda Niu, Jun-Hui Yuan, Kan-Hao Xue, Mengling Xia, Weicheng Pan, Xiaofei Yang, Benpeng Zhu, Jiang Tang
Summary: Lead halide perovskites have shown promising applications in optoacoustic transducers with improved thermal properties and high performance. By optimizing the thermal properties of perovskites, the researchers achieved record values for bandwidth and conversion efficiency in optoacoustic transducers.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Hongyu Song, Ke Tao, Rui Jia, Wei Li, Bolong Wang, Longjie Wang, Jiwu Zhu, Wei Luo, Shuai Jiang, Xing Li
Summary: This paper presents the application of (doped) poly-Si/SiOx in heterojunction silicon pixel x-ray detectors. The results show that pixel x-ray detectors have better performance when using a thinner silicon substrate.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Review
Materials Science, Multidisciplinary
Yimei Tan, Ge Mu, Menglu Chen, Xin Tang
Summary: This article introduces the fabrication methods of halide perovskite film and the classification and progress of halide perovskite-based X-ray detectors. Finally, the existing challenges are discussed, and the possible directions for future applications are explored. We hope this review can stimulate the further improvement of perovskite-based X-ray detectors.
Article
Materials Science, Multidisciplinary
Yalcin Kalkan, Sadullah Ozturk, Arif Kosemen
Summary: This paper investigates the X-ray detection properties of different Poly(3-hexylthiophene) (P3HT):Phenyl C61 butyric acid methyl ester (PCBM) blend structures by changing the PCBM loading ratios. The results show that the blend structured devices exhibit stable saw-tooth type behavior in photocurrent responses, indicating their potential application as organic electronic radiation detectors.
ORGANIC ELECTRONICS
(2022)
Article
Physics, Applied
Zhifu Liu, John A. Peters, Lei Pan, Vladislav Klepov, Michael De Siena, Alessandro Benadia, Duck Young Chung, Mercouri G. Kanatzidis, Bruce W. Wessels
Summary: Recently, the focus has been on developing x-ray and gamma ray detectors with large volume and high energy resolution that can operate at room temperature. To achieve this, it is necessary to increase the carrier mobility-lifetime product and minimize the concentration of electronic trap states. Thorough measurements and comparisons were conducted on CsPbBr3 halide perovskite single crystals to understand their origins and trap parameters. The results showed that crystals with trap concentrations below 1 x 10(14) cm(-3) exhibited appreciable detector performance.
APPLIED PHYSICS LETTERS
(2023)
Review
Nanoscience & Nanotechnology
Jun Guo, Yadong Xu, Wenhui Yang, Bao Xiao, Qihao Sun, Xinlei Zhang, Binbin Zhang, Menghua Zhu, Wanqi Jie
Summary: A flexible X-ray detector based on lead-free Cs2TeI6 perovskite film and a polyimide (PI) substrate is reported, showing superior response stability and high sensitivity. Clear X-ray images without distortion are obtained for objects with different materials and densities. The findings motivate research in wearable X-ray detectors for medical radiography and dose monitoring.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Zihan Wang, Shujie Tie, Hui Zhang, Changmao Wan, Zheng Liang, Huifen Xu, Xiaojia Zheng, Wenhua Zhang, Dmitry Aldakov, Peter Reiss, Jiajiu Ye, Xu Pan
Summary: In this study, the potential of one-dimensional (1D) delta-phase formamidinium lead iodide (& delta;-FAPbI(3)) as an X-ray detection material was examined. It was found that & delta;-FAPbI(3) possesses suitable bandgap, low ionic migration, low Young's modulus, and excellent long-term stability, making it an ideal candidate for high-performance X-ray detection. Moreover, an X-ray imager with a large-size & delta;-FAPbI(3) wafer integrated on a thin film transistor (TFT) backplane was successfully fabricated, demonstrating the feasibility of & delta;-FAPbI(3) wafer detectors for sensitive and ultrastable imaging applications.