Heavy-to-light electron transition enabling real-time spectra detection of charged particles by a biocompatible semiconductor

Dou Zhao, Ruiling Gao, Wei Cheng, Mengyao Wen, Xinlei Zhang, Tomoyuki Yokota, Paul Sellin, Shengyuan A. Yang, Li Shang, Chongjian Zhou, Takao Someya (), Wanqi Jie () and Yadong Xu ()
Additional contact information
Dou Zhao: Northwestern Polytechnical University
Ruiling Gao: Shanghai University
Wei Cheng: Nanjing University of Aeronautics and Astronautics
Mengyao Wen: Northwestern Polytechnical University
Xinlei Zhang: Shaanxi Normal University
Tomoyuki Yokota: The University of Tokyo
Paul Sellin: University of Surrey
Shengyuan A. Yang: Singapore University of Technology and Design
Li Shang: Northwestern Polytechnical University
Chongjian Zhou: Northwestern Polytechnical University
Takao Someya: The University of Tokyo
Wanqi Jie: Northwestern Polytechnical University
Yadong Xu: Northwestern Polytechnical University

Nature Communications, 2024, vol. 15, issue 1, 1-12

Abstract: Abstract The current challenge of wearable/implantable personal dosimeters for medical diagnosis and radiotherapy applications is lack of suitable detector materials possessing both excellent detection performance and biocompatibility. Here, we report a solution-grown biocompatible organic single crystalline semiconductor (OSCS), 4-Hydroxyphenylacetic acid (4HPA), achieving real-time spectral detection of charged particles with single-particle sensitivity. Along in-plane direction, two-dimensional anisotropic 4HPA exhibits a large electron drift velocity of 5 × 105 cm s−1 at “radiation-mode” while maintaining a high resistivity of (1.28 ± 0.003) × 1012 Ω·cm at “dark-mode” due to influence of dense π-π overlaps and high-energy L1 level. Therefore, 4HPA detectors exhibit the record spectra detection of charged particles among their organic counterparts, with energy resolution of 36%, (μt)e of (4.91 ± 0.07) × 10−5 cm2 V−1, and detection time down to 3 ms. These detectors also show high X-ray detection sensitivity of 16,612 μC Gyabs−1 cm−3, detection of limit of 20 nGyair s−1, and long-term stability after 690 Gyair irradiation.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-45089-2 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-45089-2

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-45089-2

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().