This decommissioned ERA site remains active temporarily to support our final migration steps to https://ualberta.scholaris.ca, ERA's new home. All new collections and items, including Spring 2025 theses, are at that site. For assistance, please contact erahelp@ualberta.ca.
Search
Skip to Search Results- 5photoconductivity
- 2carrier dynamics
- 2electrochemical anodization
- 1GaAs
- 1bottom-up nanofabrication
- 1double-helix
- 2Farsinezhad, Samira
- 2Mohammadpour, Arash
- 2Shankar, Karthik
- 2Wiltshire, Benjamin D.
- 1Askar, Abdelrahman M.
- 1Kar, Piyush
-
100-Fold Improvement in Carrier Drift Mobilities in Alkanephosphonate-Passivated Monocrystalline TiO2 Nanowire Arrays
Download2017-01-06
Mohammadpour, Arash, Wiltshire, Benjamin D., Zhang, Yun, Farsinezhad, Samira, Askar, Abdelrahman M., Kisslinger, Ryan, Ren, Yang, Kar, Piyush, Shankar, Karthik
Single crystal rutile titania nanowires grown by solvothermal synthesis are actively being researched for use as electron transporting scaffolds in perovskite solar cells, in low detection limit ultraviolet photodetectors, in photoelectrochemical water-splitting, and in chemiresistive and...
-
Distinguishing between deep trapping transients of electrons and holes in TiO2 nanotube arrays using planar microwave resonator sensor
Download2018-05-11
Mohammad H Zarifi, Benjamin Daniel Wiltshire, Najia Mahdi, Karthik Shankar, Mojgan Daneshmand
A large signal direct current (DC) bias and a small signal microwave bias were simultaneously applied to TiO2 nanotube membranes mounted on a planar microwave resonator. The DC bias modulated the electron concentration in the TiO2 nanotubes, and was varied between 0 and 120 V in this study. ...
-
2013-11-27
Mohammadpour, Arash, Farsinezhad, Samira, Wiltshire, Benjamin D., Shankar, Karthik
Monocrystalline n-TiO2 nanowires of the rutile phase (Rtl-NWs) grown by a scalable hydrothermal method constitute a functional oxide nanomaterial with potential applications in photovoltaics, photocatalysts, field emitters and electro-chemical battery anodes. Carrier transport in Rtl-NWs is of...
-
Fall 2019
Narreto, Mary Alvean Balmadres
In this thesis, the ultrafast photoluminescence and photoconductivity dynamics of different types of semiconductors are investigated. Using time-resolved photoluminescence and time-resolved terahertz spectroscopy techniques, the origin of the light emission and the nature of carrier transport are...
-
Fall 2021
Ultrafast terahertz (THz) spectroscopy is presently the most powerful tool available to materials scientists for directly probing ultrafast conductivity dynamics. Its low center frequency and phase-resolved measurement, which yields sub-picosecond temporal resolution, make it ideally suited for...