A5077393959- Radiation Detection and Scintillator Technologies
- Conducting polymers and applications
- Advanced Radiotherapy Techniques
- Organic Electronics and Photovoltaics
- Radiation Therapy and Dosimetry
- Neuroscience and Neural Engineering
- Radiation Effects in Electronics
- Polymer Nanocomposite Synthesis and Irradiation
- Perovskite Materials and Applications
- Luminescence Properties of Advanced Materials
- Gas Sensing Nanomaterials and Sensors
- Radiation Effects and Dosimetry
- Medical Imaging Techniques and Applications
- Advanced X-ray and CT Imaging
- Photoreceptor and optogenetics research
- Luminescence and Fluorescent Materials
- CCD and CMOS Imaging Sensors
- Organic Light-Emitting Diodes Research
- Ga2O3 and related materials
- Analytical Chemistry and Sensors
- Advanced Memory and Neural Computing
- ZnO doping and properties
- Machine Learning in Materials Science
University of Wollongong
2020-2024
University of South Australia
2024
The University of Sydney
2023
The deployment of organic semiconducting materials for radiation detection is an emerging and highly attractive area science research. These offer the enticing vision technologies created from low cost that can be printed on-demand with a range different tailored optoelectronic functionalities. An explosion in number available materials, improved functionality sophistication solution-based device fabrication techniques semiconductors recent years has led to considerable opportunities...
Abstract Organic semiconductors have emerged as promising neural interfacing materials due to their innate biocompatibility, soft mechanical properties, and mixed electron/ion conduction. One exciting application is use artificial photosensors for retinal prostheses via optically induced neuromodulation. In this study, the optoelectronic properties of six organic semiconductor polymers small molecules, split into donor/acceptor pairs that form candidates a trichromatic retina closely mimics...
Measurement of dose delivery is essential to guarantee the safety patients undergoing medical radiation imaging or treatment procedures. This study aimed evaluate ability organic semiconductors, coupled with a plastic scintillator, measure photon in clinically relevant conditions, and establish its hardness. Thereby, proving devices are capable being water-equivalent, mechanically flexible, real-time dosimeter.The shelf-life an photodiode was analyzed 40 kGy by comparison...
Purpose The development of novel detectors for dosimetry in advanced radiotherapy modalities requires materials that have a water equivalent response to ionizing radiation such characterization beams can be performed without the need complex calibration procedures and correction factors. Organic semiconductors are potentially an ideal technology fabricating devices due tissue equivalence, mechanical flexibility, relatively cheap manufacturing cost. commercial organic photodetector (OPD),...
Abstract A new printable organic semiconducting material combination as a tissue equivalent photodetector for indirect X‐ray detection is demonstrated in this work. The device exhibits higher optical‐to‐electrical conversion efficiency than any other reported systems photodetection while also operating efficiently with zero applied bias. Complete detectors fabricated by coupling the photodiode plastic scintillator are among first flexible and fully capable of without external response to...
Detectors that can provide accurate dosimetry for microbeam radiation therapy (MRT) must possess intrinsic hardness, a high dynamic range, and micron-scale spatial resolution. In this work we characterize hydrogenated amorphous silicon detectors MRT dosimetry, presenting novel combination of flexible, ultra-thin radiation-hard features.
There is growing interest in the development of novel materials and devices capable ionizing radiation detection for medical applications. Organic semiconductors are promising candidates to meet demands modern detectors, such as low manufacturing costs, mechanical flexibility, a response equivalent human tissue. However, organic have typically been employed applications that convert energy photons into high current densities, example, solar cells LEDs, thus existing design rules must be...
Spatially fractionated ultra-high-dose-rate beams used during microbeam radiation therapy (MRT) have been shown to increase the differential response between normal and tumour tissue. Quality assurance of MRT requires a dosimeter that possesses tissue equivalence, high tolerance spatial resolution. This is currently an unsolved challenge. work explored use 500 nm thick organic semiconductor for dosimetry on Imaging Medical Beamline at Australian Synchrotron. Three beam filters were irradiate...
Abstract Organic semiconductor‐based sensors are a unique class of wearable x‐ray detectors, as the response from their carbon‐based composition can mimic human body to radiation. A thin (260 nm) flexible P3HT: o‐IDTBR‐based organic sensor, deposited onto conductive Kapton substrate is demonstrated, provide precise and artifact‐free dosimetry under synchrotron x‐rays with sensitivities (1958 ± 31)pCGy −1 cm −2 without bias. The sensor capable accurately resolving multiple 50 µm‐wide...
Quality assurance (QA) ensures the accurate and safe delivery of radiation treatment. However, there are several challenges for advanced radiotherapy techniques, such as stereotactic radiosurgery (SRS), where substantial doses with multi-directional beams variable dose rates delivered to specific areas. Current dosimeters lack high precision, exhibiting issues dependency on angle measurement rate. This study investigates characterization a two-dimensional edgeless silicon diode array QA in...