Extraordinary carrier multiplication gated by a picosecond electric field pulse

H. Hirori (), K. Shinokita, M. Shirai, S. Tani, Y. Kadoya and K. Tanaka ()
Additional contact information
H. Hirori: Institute for Integrated Cell-Material Sciences, Kyoto University
K. Shinokita: Graduate School of Science, Kyoto University
M. Shirai: Institute for Integrated Cell-Material Sciences, Kyoto University
S. Tani: Graduate School of Science, Kyoto University
Y. Kadoya: Core Research for Evolutional Science and Technology, Japan Science and Technology Agency
K. Tanaka: Institute for Integrated Cell-Material Sciences, Kyoto University

Nature Communications, 2011, vol. 2, issue 1, 1-6

Abstract: Abstract The study of carrier multiplication has become an essential part of many-body physics and materials science as this multiplication directly affects nonlinear transport phenomena, and has a key role in designing efficient solar cells and electroluminescent emitters and highly sensitive photon detectors. Here we show that a 1-MVcm−1 electric field of a terahertz pulse, unlike a DC bias, can generate a substantial number of electron–hole pairs, forming excitons that emit near-infrared luminescence. The bright luminescence associated with carrier multiplication suggests that carriers coherently driven by a strong electric field can efficiently gain enough kinetic energy to induce a series of impact ionizations that can increase the number of carriers by about three orders of magnitude on the picosecond time scale.

Date: 2011
References: Add references at CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/ncomms1598 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1598

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms1598

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().