Junpeng Lu , Liu Hongwei , Sun Cheng , Zheng Minrui , Lim Kim Yong , Nirpan Mathews , Subodh G. Mhaisalkar , Tang Sing Hai, Zhang Xinhai and Sow Chorng Haur
RSC Adv., 2012, Accepted Manuscript
This work reports the characterization of antimony doping effect on the electron transportation in SnO2 nanonets via a contact (field-effect transistor) and a non-contact (terahertz time-domain spectroscopy) approach. The doping influence is well demonstrated by the contact method through exploring the output characteristics of the devices. In addition, through the analysis of the terahertz time-domain spectra using Drude-Smith model, the non-contact method provides more precise characterization ascribed to the absence of extra effects such as contact resistance and nanowire-nanowire junction barriers.
....... The transmission terahertz spectra were carried out using a conventional THz-TDS system (TeraView Spectra 3000). The 100 fs optical pulses centered at 800 nm with repetition rate of 76 MHz ...
For more information about the Spectra 3000 visit http://www.teraview.com/products/terahertz-pulsed-spectra-3000/index.html