Light–Matter Interactions in chalcogenides materials for Solar Energy Applications

Project scope

• This project investigates light–matter interactions in scalable thin-film absorber materials for next-generation solar cells, including WS₂, WSe₂, selenium (Se), and Sb₂S₃. The research focuses on understanding how material structure, defects, and interfaces influence optical absorption, emission, and charge-carrier dynamics in large-area thin films.
• This project is primarily based on on-campus laboratory work in the ANU Photovoltaics Laboratory, involving thin-film deposition and advanced materials characterization. Some data analysis, literature review, and report writing may be conducted remotely.
• Available as a six-month (1 semester) or 12-month (2 semesters) project, with scope for adjustment depending on enrolment mode and project requirements.
• Available from February 2026.
• Suitable for courses, such as: ENGN2706, ENGN2707, ENGN3706, ENGN3712, ENGN4200, ENGN4350, ENGN4706, ENGN4712, ENGN4718, ENGN8601, ENGN8602.
• Suitable for both domestic and international students.

Project description

The project will involve the synthesis, characterisation, and optical analysis of WS₂, WSe₂, selenium, and Sb₂S₃ thin films. The student will conduct experimental work using magnetron sputtering and related deposition techniques, followed by structural, optical, and electrical characterisation. Data analysis will be used to correlate material properties with light–matter interaction behaviour and photovoltaic performance.

Background

Layered chalcogenide materials such as WS₂, WSe₂, selenium, and Sb₂S₃ have emerged as promising absorbers for tandem and thin-film solar cells. While laboratory-scale devices show strong potential, performance is often limited by incomplete understanding of light–matter interactions, defect physics, and large-area material uniformity. Scalable deposition techniques, such as magnetron sputtering, provide a pathway towards industry-relevant fabrication but require systematic optimization and comprehensive characterization.

References on light matter interactions in Chalcogenides materials:

1. Wibowo et al., Advanced Materials (2025) https://doi.org/10.1002/adma.202415795
2. Wibowo et al., Advanced Materials Interfaces (2025) https://doi.org/10.1002/admi.202500059
3. Wibowo et al., Advanced Materials Technologies (2023) https://doi.org/10.1002/admt.202300143
4. Wibowo et al., ACS Applied Electronic Materials (2023) https://doi.org/10.1021/acsaelm.2c01162 

Deliverables

• A completed Honours thesis based on original experimental research.
• Optimised deposition and characterisation protocols for WS₂, WSe₂, Se, and Sb₂S₃ thin films.
• High-quality experimental datasets (optical, structural, and electronic measurements).
• Technical reports and documented analysis methods.
• Potential peer-reviewed journal publication and/or conference presentation.
• Development of advanced laboratory, data analysis, and scientific writing skills.

Information for applicants

Essential skills and background

• Enrolment in an Honours/R&D or Research Courses for Master by coursework program in engineering, physics, materials science, or a related discipline.
• Strong interest in experimental research and renewable energy technologies.
• Willingness to work in a laboratory environment and follow safety procedures.
• Basic skills in data analysis and technical reporting.

Desirable requirements

• Enrolment in an Honours/R&D or Research Courses for Master by coursework program in engineering, physics, materials science, or a related discipline.

Student takeaways

• Gain hands-on experience in world-class photovoltaic research facilities, including access to state-of-the-art thin-film deposition and characterisation equipment.
• Develop strong technical skills in materials synthesis, optical and electronic measurements, and data analysis.
• Gain experience in scientific writing, research presentation, and collaboration within a leading solar energy research group, building professional networks that support future academic and industry careers.

How to apply

If you are interested, please send a copy of your CV (resume), academic transcript, and a brief expression of interest to the project supervisor via email.

Applicants are encouraged to indicate their preferred material system (e.g., WS₂, WSe₂, Se, or Sb₂S₃) and research interests. The final project scope will be defined collaboratively based on the student’s interests and project feasibility.