Highly efficient photon detection systems for noble liquid detectors based on perovskite quantum dots
| Autor: | Shariar Motakef, Biplob Barman, Amlan Datta, S. Magill |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Photoluminescence Photodetector Quantum yield lcsh:Medicine 02 engineering and technology 01 natural sciences Article chemistry.chemical_compound Silicon photomultiplier Nanoscience and technology 0103 physical sciences Emission spectrum lcsh:Science Multidisciplinary 010308 nuclear & particles physics business.industry lcsh:R Tetraphenyl butadiene 021001 nanoscience & nanotechnology chemistry Optics and photonics Quantum dot Optoelectronics Quantum efficiency lcsh:Q 0210 nano-technology business |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-11 (2020) |
| ISSN: | 2045-2322 |
| Popis: | Wavelength shifting photon detection systems (PDS) are the critical functioning components in noble liquid detectors used for high energy physics (HEP) experiments and dark matter search. The vacuum ultraviolet (VUV) scintillation light emitted by these Liquid argon (LAr) and liquid Xenon (LXe) detectors are shifted to higher wavelengths resulting in its efficient detection using the state-of-the-art photodetectors such as silicon photomultipliers (SiPM). The currently used organic wavelength shifting materials [such as 1,1,4,4 Tetraphenyl Butadiene (TPB)] have several disadvantages and are unreliable for longterm use. In this study, we demonstrate the application of the inorganic perovskite cesium lead bromide (CsPbBr3) quantum dots (QDs) as highly efficient wavelength shifters. The absolute photoluminescence quantum yield of the PDS fabricated using these QDs exceeds 70%. CsPbBr3-based PDS demonstrated an enhancement in the SiPM signal enhancement by up to 3 times when compared to a 3 µm-thick TPB-based PDS. The emission spectrum from the QDs was optimized to match the highest quantum efficiency region of the SiPMs. In addition, we have demonstrated the deposition of the QD-based wavelength shifting material on a large area PDS substrate using low capital cost and widely scalable solution-based techniques providing a pathway appropriate for meter-scale PDS fabrication and widespread use for other wavelength shifting applications. |
| Databáze: | OpenAIRE |
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