Dr Tuomas Haggren
Position |
Research Fellow |
|---|---|
Department |
Electronic Materials Engineering |
Office phone |
54283 |
Mobile phone |
0482048565 |
Email |
|
Office |
Physics New 3 13 |
Flexible, Cost-effective III-V Semiconductor-Perovskite Tandem Solar Cells
This project aims to develop high efficiency, cost-effective III-V semiconductor-perovskite tandem solar cells which are flexible and lightweight, while achieving excellent device stability.
Professor Hoe Tan, Dr Tuomas Haggren, Professor Chennupati Jagadish
Electrically-injected bottom-up III-V micro-cavity lasers
Bottom-up fabrication of lasers via epitaxial growth is emerging as a promising alternative to conventional top-down methods, offering potential to realize micro-lasers with ultra-low optical losses. In this project, we aim to demonstrate electrically injected lasing in InP/InAsP multi-quantum well micro-ring cavities, grown using the selective area epitaxy technique.
Dr Wei Wen Wong, Dr Tuomas Haggren, Professor Hoe Tan, Professor Chennupati Jagadish
Electrically injected metasurface lasers
Metasurfaces have emerged as a cornerstone for next-generation optics and optoelectronics. This project aims to create metasurface lasers from III-V semiconductor thin-films, that are additionally pumped electrically.
Dr Tuomas Haggren, Professor Hoe Tan, Professor Chennupati Jagadish
Wearable III-V nanofilm photodetectors and sensors
Semiconductor nanofilms are just some tens of nanometres thick single-crystalline structures with lateral dimensions in cm-scale. The ultra-low thickness gives these films interesting properties differing from bulk materials, and enables interesting novel device concepts in photodetection and gas sensing.
Dr Tuomas Haggren, Professor Hoe Tan, Professor Chennupati Jagadish
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Updated: 15 May 2024/ Responsible Officer: Director, RSPE/ Page Contact: Physics Webmaster
