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dc.contributor.authorLi, Mingjieen
dc.contributor.authorWu, Boen
dc.contributor.authorEkahana, Sandy Adhitiaen
dc.contributor.authorUtama, Muhammad Iqbal Baktien
dc.contributor.authorXing, Guichuanen
dc.contributor.authorXiong, Qihuaen
dc.contributor.authorSum, Tze Chienen
dc.contributor.authorZhang, Xinhaien
dc.identifier.citationLi, M., Wu, B., Ekahana, S. A., Utama, M. I. B., Xing, G., Xiong, Q., et al. (2012). Size and surface effects on transient photoconductivity in CdS nanobelts probed by time-resolved terahertz spectroscopy. Applied Physics Letters, 101(9).en
dc.description.abstractUltrafast optical-pump terahertz probe spectroscopy was performed over a graduated size distribution of CdS nanobelts to investigate the size and surface effects on the transient photoconductivity. It was found that the nanobelt size has a profound influence on the carrier localization and photoconductivity dynamics, brought about by the carrier trapping at surface defects. The strong carrier localization in the nanobelt is ascribed to the internal surface boundaries arising from the surface depletion layer. The increased thickness of surface depletion layer due to a continuous trapping of photocarriers at surface defects results in more pronounced carrier localization after photoexcitation.en
dc.relation.ispartofseriesApplied Physics Lettersen
dc.rights© 2012 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official DOI: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.titleSize and surface effects on transient photoconductivity in CdS nanobelts probed by time-resolved terahertz spectroscopyen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.description.versionPublished versionen
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