Brief introduction to CHPs for scintillators¶
Copper halide perovskite scintillators are a class of materials that combine the perovskite crystal structure with copper halides and are used for detecting ionizing radiation such as X-rays and gamma rays (Qu et al. (2023), Xie et al. (2020), Yao et al. (2022)). Scintillators work by absorbing high-energy radiation and re-emitting it as visible light, which can then be detected for imaging or sensing purposes. These copper-based materials are especially attractive because they are lead-free, making them safer and more environmentally friendly than traditional lead halide perovskites.
Notable examples include Cs₃Cu₂I₅ and CsCu₂I₃. Cs₃Cu₂I₅ emits bright blue light (~440 nm) (Wang et al. (2023)) and offers a high light yield of around 60,000 photons per MeV, while CsCu₂I₃ emits yellow light (~560 nm) and is easier to synthesize. These materials often exhibit self-trapped excitons—localized excited states that enhance light emission efficiency. Their emission properties can be adjusted by changing the halide composition, enabling spectral tuning for specific detector requirements.
Research and measurement data¶
Dataset¶
The database are grouped in the following forms of CHPs:
- 1D and 0D CHPs in powder/ nanocrystal forms
- 1D CHP in powder/ pellet form, in Polydimethylsiloxane resin
- 1D and 0D CHPs in nanofibers (suspended in Polystyrene)
- 1D and 0D CHPs with Rb-doping on A-site
each with the following sample measurements:
- Theoretical calculations
- Density functional theorem (DFT), with CIF files available via The Cambridge Crystallographic Data Centre (CCDC).
- Morphology and crystal structure
- Energy-dispersive X-ray (EDX/EDS)
- Scanning electron microscopy (SEM)
- Raman spectroscopy
- X-ray photoelectron spectroscopy (XPS)
- Optical and scintillation measurements
- Absorption spectroscopy (Abs)
- Photoluminescence spectroscopy (PL)
- Light yield (LY)/ pulse-height spectra (PHS)
- Temperature-dependent radioluminescence (RL)
- Scintillation decay
- Electronic structure (only for 1D and 0D CHPs in powder/ nanocrystal forms)
- X-ray absorption spectroscopy (XAS)
You can download the files as ZIP or request a fetch via GitHub. The latter is preferable as your modifications or analysis can be tracked by every collaborator.
Analysis and drafts¶
Zenodo/ FigShare¶
There are no Zenodo or FigShare database to cite.
Preprints¶
No preprints available.
Funding/ resources¶
The works on the CHP exploration are funded in whole or partial by the following schemes:
- Funding
- National Science Center, Poland - OPUS-24:
2022/47/B/ST5/01966. - Direktorat Jenderal Riset, Teknologi, dan Pengabdian Masyarakat, Kementerian Pendidikan Tinggi, Sains, dan Teknologi:
2024. - Institut Teknologi Bandung - Riset ITB 2024: grant no.
308/IT1.B07.1/TA.01/2024. - Universitas Prasetiya Mulya - YSI Scholarship:
1/4/11.01.1/0391/09/2019
- National Science Center, Poland - OPUS-24:
- Resources/ personel
- National Laboratory for Quantum Technologies, Nicolaus Copernicus University in Torun (European Regional Development Fund).
- Advanced Characterization Laboratories Serpong, National Research and Innovation Agency through E-Layanan Sains, Badan Riset dan Inovasi Nasional (BRIN).
- Collaborative STEM Laboratories - Universitas Prasetiya Mulya.
- PT Nanotech Indonesia Global Tbk - start-up research grant.
Related work¶
- Qu, J., Xu, S., Shao, H., Xia, P., Lu, C., Wang, C., & Ban, D. (2023). Recent progress of copper halide perovskites: properties, synthesis and applications. Journal of Materials Chemistry C, 11(19), 6260–6275. 10.1039/d3tc00503h
- Xie, L., Chen, B., Zhang, F., Zhao, Z., Wang, X., Shi, L., Liu, Y., Huang, L., Liu, R., Zou, B., & Wang, Y. (2020). Highly luminescent and stable lead-free cesium copper halide perovskite powders for UV-pumped phosphor-converted light-emitting diodes. Photonics Research, 8(6), 768. 10.1364/prj.387707
- Yao, Q., Li, J., Li, X., Zheng, X., Wang, Z., & Tao, X. (2022). High‐Quality Cs3Cu2I5 Single‐Crystal is a Fast‐Decaying Scintillator. Advanced Optical Materials, 10(23). 10.1002/adom.202201161
- Wang, H., Wang, J.-X., Song, X., He, T., Zhou, Y., Shekhah, O., Gutiérrez-Arzaluz, L., Bayindir, M., Eddaoudi, M., Bakr, O. M., & Mohammed, O. F. (2023). Copper Organometallic Iodide Arrays for Efficient X-ray Imaging Scintillators. ACS Central Science, 9(4), 668–674. 10.1021/acscentsci.2c01495