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CHAPTER 11

Carrier Dynamics in Photovoltaic Structures and Materials Studied by Time-Resolved Terahertz Spectroscopy

Terahertz (THz) radiation, covering the frequency range from a few to about a hundred milli-electron volts (meV), is particularly sensitive to the response of charge motion in materials. Using a pump-probe scheme, time resolved terahertz spectroscopy (TRTS) allows, in a contact-free way, the study of charge carrier dynamics with ultrafast time resolution. In this chapter, we review how TRTS has been successfully employed for the characterization of photovoltaic materials and architectures. Particularly, we focus on TRTS studies that interrogate key processes occurring after photo-excitation in nano-structured semiconductor systems, including charge generation, separation and transport. Understanding the fundamental properties of charge carriers in these novel geometries is important for the development of future solar energy conversion technologies.

Publication details


Print publication date
09 Oct 2013
Copyright year
2013
Print ISBN
978-1-84973-387-8
PDF eISBN
978-1-84973-544-5
From the book series:
Energy and Environment Series