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http://hdl.handle.net/10261/163527
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dc.contributor.author | Johannes, Andreas | - |
dc.contributor.author | Salomon, Damien | - |
dc.contributor.author | Martínez-Criado, Gema | - |
dc.contributor.author | Glaser, Markus | - |
dc.contributor.author | Lugstein, Alois | - |
dc.contributor.author | Ronning, Carsten | - |
dc.date.accessioned | 2018-04-12T07:54:08Z | - |
dc.date.available | 2018-04-12T07:54:08Z | - |
dc.date.issued | 2017-12-01 | - |
dc.identifier | doi: 10.1126/sciadv.aao4044 | - |
dc.identifier | e-issn: 2375-2548 | - |
dc.identifier.citation | Science Advances 3(12): eaao4044 (2017) | - |
dc.identifier.uri | http://hdl.handle.net/10261/163527 | - |
dc.description.abstract | We introduce a method for directly imaging depletion layers in operando with elemental specificity and chemical speciation at sub–100 nm spatial resolution applicable to today’s three-dimensional electronic architectures. These typically contain complex, multicomponent designs consisting of epitaxial heterostructures, buried domains, or nanostructures with different shapes and sizes. Although the variety of devices is immense, they commonly rely on carrier separation in a built-in potential induced by composition or strain gradients. To image these, we scanned a focused synchrotron x-ray nanobeam over a single semiconductor nanowire heterostructure and simultaneously measured the current through the device and the emitted characteristic x-rays as a function of the incoming hard x-ray energy. With these results, it is possible to identify the compositional and molecular structure as well as localize the electrical fields present under typical working conditions. This information allows us to draw an energy band diagram consistent with the elemental distribution and a high-resolution chemical speciation map. | - |
dc.description.sponsorship | We acknowledge financial support by the Deutsche Forschungsgemeinschaft (DFG; RO 1198/14-1) and Austrian Science Fund (FWF; No. I 724-N16) under the auspices of the D-A-CH-project “Wiring quantum dots,” the German Ministry for Research and Technology (BMBF) within the project “nano@work” (05K16SJ1), and the ESRF for the allocated beam time. G.M.-C. thanks the partial financial support from Consejo Superior de Investigaciones Científicas through the project 201660I001. | - |
dc.description.sponsorship | We acknowledge support by the CSIC Open Access Publication Initiative through its Unit of Information Resources for Research (URICI). | - |
dc.publisher | American Association for the Advancement of Science | - |
dc.relation.isversionof | Publisher's version | - |
dc.rights | openAccess | - |
dc.title | In operando x-ray imaging of nanoscale devices: Composition, valence, and internal electrical fields | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1126/sciadv.aao4044 | - |
dc.relation.publisherversion | https://doi.org/10.1126/sciadv.aao4044 | - |
dc.date.updated | 2018-04-12T07:54:08Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.rights.license | http://creativecommons.org/licenses/by-nc/4.0/ | - |
dc.contributor.funder | Austrian Science Fund | - |
dc.contributor.funder | European Commission | - |
dc.contributor.funder | German Research Foundation | - |
dc.contributor.funder | Consejo Superior de Investigaciones Científicas (España) | - |
dc.contributor.funder | CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI) | - |
dc.contributor.funder | Federal Ministry of Education and Research (Germany) | - |
dc.relation.csic | Sí | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000780 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100001659 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003339 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100002347 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100002428 | es_ES |
dc.identifier.pmid | 29226247 | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.fulltext | With Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.openairetype | artículo | - |
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