Scalable bismuth oxyiodide devices for ionising radiation detection

Thesis

Radiation detectors capable of detecting low dose rates of ionising radiation are essential for minimising harm to individuals being screened in imaging applications, such as medical diagnostics and security screening. Incumbent commercial detectors used for these applications are predominantly based on amorphous selenium (𝛼-Se) which exhibits a high detection limit of 5500 nGyair s -1 , resulting from its low atomic number (Z=34) and low mobility-lifetime product (𝜇𝜏 = 10-7 cm2 V-1 ) which t...

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Authors: Dudipala, KR

• DOI: 10.5287/ora-era4vy6q8
• Type of award: DPhil
• Level of award: Doctoral
• Awarding institution: University of Oxford
• Language: English
• Keywords: X-ray detectors; radiation detection; bismuth oxyiodide
• Subjects: Semiconductors; Solid state chemistry; Optoelectronic devices; Two-dimensional materials; Photonics; Energy conversion