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Temperature dependence of excitonic energy in isolated Se chains formed in the channels of AlPO4-5 crystals

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Temperature dependence of excitonic energy in isolated Se chains formed in the channels of AlPO4-5 crystals

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dc.contributor.author Sun, Handong
dc.contributor.author Tang, Z. K.
dc.contributor.author Zhao, W. M.
dc.contributor.author Wong, G. K.
dc.date.accessioned 2009-11-03T01:06:33Z
dc.date.available 2009-11-03T01:06:33Z
dc.date.copyright 1997
dc.date.issued 2009-11-03T01:06:33Z
dc.identifier.citation Sun, H. D., Tang, Z. K., Zhao, W. M., & Wong, G. K. (1997). Temperature dependence of excitonic energy in isolated Se chains formed in the channels of AlPO4-5 crystal. Applied Physics Letters, 71(17), 2457-2459.
dc.identifier.issn 0003-6951
dc.identifier.uri http://hdl.handle.net/%dspace.prefix%/6137
dc.description.abstract Optical absorption spectra of Se chains formed in channels of AlPO4-5 (AFI) crystals are measured in the temperature range from 80 to 298 K. The excitonic energy of the isolated Se chains is observed to shift to lower energy linearly with increasing temperatures, in sharp contrast to the positive temperature coefficient in trigonal-Se crystal. The marked change in the temperature behavior of the excitonic energy is attributed to the greatly diminished interchain interaction in Se–AFI as well as the weakening of the electron-optical-phonon coupling in a low-dimensional system.
dc.format.extent 4 p.
dc.language.iso en
dc.relation.ispartofseries Applied Physics Letters
dc.rights Applied Physics Letters © copyright 1997 American Institute of Physics. The journal's website is located at http://apl.aip.org/.
dc.subject DRNTU::Science::Physics::Optics and light.
dc.title Temperature dependence of excitonic energy in isolated Se chains formed in the channels of AlPO4-5 crystals
dc.type Journal Article
dc.contributor.school School of Physical and Mathematical Sciences
dc.identifier.openurl http://scitation.aip.org.ezlibproxy1.ntu.edu.sg/getabs/servlet/GetabsServlet?prog=normal&id=APPLAB000071000017002457000001
dc.identifier.doi 10.1063/1.120113
dc.identifier.doi http://dx.doi.org/10.1063/1.120113
dc.description.version Published version

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