1:00–2:00 pm
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Transport Property on Mercury Chalcogenide Colloidal Quantum Dot
Beginning in 2011, after PGS lab successfully synthesized the first mid-IR colloidal quantum dot (CQD) with HgTe, the HgX(X=S, Se, Te) CQDs have been extensively studied in photodetection devices and been a model system to study the transport properties in quantum dots solids. I would present how we not only characterize the energy levels by electrochemistry but also tune the energies by surface dipoles on this system. I would also present the investigation on achieving ‘Confined yet free to go’ in this system and the further study of the CQD magnetoresistance. For the application side, I would present the device evolving from simple photoconductors to multispectral photodetectors with a complex design.
Committee:
Prof. Philippe Guyot-Sionnest(chair)
Prof. Peter B. Littlewood
Prof. Henry J. Frisch
Prof. David Schuster
Menglu would be an Associate Professor in Chinese Academy of Sciences after graduation. She would like to keep exploring the transport property in disordered system.