000 03264nam a22005055i 4500
001 978-3-319-00590-4
003 DE-He213
005 20140220082838.0
007 cr nn 008mamaa
008 130717s2013 gw | s |||| 0|eng d
020 _a9783319005904
_9978-3-319-00590-4
024 7 _a10.1007/978-3-319-00590-4
_2doi
050 4 _aQC610.9-611.8
072 7 _aTJFD5
_2bicssc
072 7 _aTEC008090
_2bisacsh
082 0 4 _a537.622
_223
100 1 _avan Schooten, Kipp.
_eauthor.
245 1 0 _aOptically Active Charge Traps and Chemical Defects in Semiconducting Nanocrystals Probed by Pulsed Optically Detected Magnetic Resonance
_h[electronic resource] /
_cby Kipp van Schooten.
264 1 _aHeidelberg :
_bSpringer International Publishing :
_bImprint: Springer,
_c2013.
300 _aXIV, 90 p. 28 illus. in color.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
490 1 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5053
505 0 _aIntroduction -- Experimental Methods -- Spin-Dependent Exciton Quenching and Intrinsic Spin Coherence in CDSE/CDS Nanocrystals -- Towards Chemical Fingerprinting of Deep-Level Defect Sites in CDS Nanocrystals by Optically Detected Spin Coherence -- Summary of Work.
520 _aColloidal nanocrystals show much promise as an optoelectronics architecture due to facile control over electronic properties afforded by chemical control of size, shape, and heterostructure. Unfortunately, realizing practical devices has been forestalled by the ubiquitous presence of charge "trap" states which compete with band-edge excitons and result in limited device efficiencies. Little is known about the defining characteristics of these traps, making engineered strategies for their removal difficult. This thesis outlines pulsed optically detected magnetic resonance as a powerful spectroscopy of the chemical and electronic nature of these deleterious states. Counterintuitive for such heavy atom materials, some trap species possess very long spin coherence lifetimes (up to 1.6 µs). This quality allows use of the trapped charge's magnetic moment as a local probe of the trap state itself and its local environment. Beyond state characterization, this spectroscopy can demonstrate novel effects in heterostructured nanocrystals, such as spatially-remote readout of spin information and the coherent control of light harvesting yield.
650 0 _aPhysics.
650 0 _aEngineering.
650 0 _aNanotechnology.
650 1 4 _aPhysics.
650 2 4 _aSemiconductors.
650 2 4 _aNanotechnology.
650 2 4 _aSpectroscopy and Microscopy.
650 2 4 _aNanoscale Science and Technology.
650 2 4 _aNanotechnology and Microengineering.
650 2 4 _aQuantum Information Technology, Spintronics.
710 2 _aSpringerLink (Online service)
773 0 _tSpringer eBooks
776 0 8 _iPrinted edition:
_z9783319005898
830 0 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5053
856 4 0 _uhttp://dx.doi.org/10.1007/978-3-319-00590-4
912 _aZDB-2-PHA
999 _c96452
_d96452