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Nanoscience and nanotechnology

We conducts extensive research into the design, growth and fabrication of semiconductor and optical devices on the nanometer scale using techniques ranging from MOCVD growth to ion beam processing. Such devices by virtue of their scale, exploit quantum effects to enhance their performance. A large part of this research program focuses on quantum well lasers and detectors of importance to the telecommunications industry.

We also research the nanoscale modification of bulk materials such as nanocrystals within semiconductors induced by ion irradiation. materials modified in this way can have unusual and technologically useful properties such as light emission at wavelengths incompatible with the bulk material band structure.

Nanotubes as their name suggests are microscopically small pipes of material such as carbon - like an elongated form of a "buckie ball". These have exciting properties such as unimaginably high tensile strengths and the School has an active research program on the efficient production of nanotubes by mechano chemistry.

Potential student research projects

You could be doing your own research into nanoscience and nanotechnology. Below are some examples of student physics research projects available in our school.

Positron interactions with structured surfaces

We are investigating novel effects and applications using positrons and structured surfaces.

Dr Joshua Machacek, Dr Sergey Kruk

Quantum-well nanowire light emitting devices

In this project we aim to design and demonstrate  III-V compound semiconductor based quantum well nanowire light emitting devices with wavelength ranging from 1.3 to 1.6 μm for optical communication applications.

Professor Lan Fu, Dr Zhe (Rex) Li, Professor Hoe Tan, Professor Chennupati Jagadish

Bottom-Up Nanolasers for Next-Generation Integrated Nanophotonics

This project develops bottom-up, epitaxially-grown nanolaser cavities with atomically smooth facets that overcome scattering losses in top-down fabricated devices. By exploring advanced cavity concepts—including flatband and topological nanolasers—it aims to deliver robust, scalable, and low-threshold light sources, redefining nanolaser technology for next-generation integrated photonic systems.

Dr Wei Wen Wong, Professor Hoe Tan, Professor Chennupati Jagadish

Colloidal systems in highly concentrated salt solutions

We are studying colloidal systems in highly concentrated salt solutions. Here a number of surprising and unexplained things happen that are associated with surprisingly long-ranged electrostatic forces

Professor Vincent Craig

Please browse our full list of available physics research projects to find a student research project that interests you.