Clean Energy Capability Portfolio | Renewable Generation |
Nanoscale Functional Imaging of Energy
Materials
Understanding the nanoscale properties of energy materials is critical in optimising their performance . Nanoscale functional imaging , using the atomic force microscope to measure local electrical and structural behaviour , can help gain deep insight into why photovoltaics materials either achieve , or fail to meet , their performance targets . |
Competitive Advantage • Developed a functional scanning probe microscope technique that can provide nanoscale spatial resolution
• Ability to measure both the nanostructure and functional data , enabling correlations between the structure and performance of photovoltaics materials
Impact • Improving the fundamental scientific understanding of nanoscale properties and contributing to device performance improvement
Successful Applications • Spatially resolved measurements of surface photovoltage and photocurrent in nanoscale
• 2D and 3D structured halide perovskite materials
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Capabilities and Facilities • A scanning probe microscopy setup with the following functions :
• Tuneable wavelength laser source ( 400-850nm )
• Environmental control ( vacuum , O2 , N2 ), heating , cooling stage ( -80 º C to 100 º C )
• High sensitive current sensor ( 1pA to 10 µ A )
• Voltage resolution up to mV
Our Collaborators • University of Surrey
• Korea Advanced Institute of Science & Technology ( KAIST )
• Korea University
• Korea Research Institute of Chemical Technology ( KRICT )
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• Revealing properties of nanoscale defects in semiconductors , including perovskites , CZTS , GaAs , and Si |
More Information Dr Jae Sung Yun
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• Investigate nanoscale properties of semiconductors for solar cells |
School of Materials Science & Engineering T : + 61 402 701 488 |
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E : j . yun @ unsw . edu . au |
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