Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/102442
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Gad, Alaaeldin | - |
dc.contributor.author | Hoffmann, Martin W. G. | - |
dc.contributor.author | Casals Guillén, Olga | - |
dc.contributor.author | Mayrhofer, Leonhard | - |
dc.contributor.author | Fábrega, Cristian | - |
dc.contributor.author | Caccamo, Lorenzo | - |
dc.contributor.author | Hernández Ramírez, Francisco | - |
dc.contributor.author | Mohajerani, Matin S. | - |
dc.contributor.author | Moseler, Michael | - |
dc.contributor.author | Shen, Hao | - |
dc.contributor.author | Waag, Andreas | - |
dc.contributor.author | Prades García, Juan Daniel | - |
dc.date.accessioned | 2016-10-07T11:21:15Z | - |
dc.date.available | 2017-09-29T22:01:29Z | - |
dc.date.issued | 2016-09-29 | - |
dc.identifier.issn | 2379-3694 | - |
dc.identifier.uri | http://hdl.handle.net/2445/102442 | - |
dc.description.abstract | Inorganic conductometric gas sensors struggle to overcome limitations in high power consumption and poor selectivi-ty. Herein, recent advances in developing self-powered gas sensors with tunable selectivity are introduced. Alternative general approaches for powering gas sensors were realized via proper integration of complementary functionalities (namely; powering and sensing) in a singular heterostructure. These solar light driven gas sensors operating at room temperature without applying any additional external powering sources are comparatively discussed. The TYPE-1 gas sensor based on integration of pure inorganic interfaces (e.g. CdS/n-ZnO/p-Si) is capable of delivering a self-sustained sensing response, while it shows a non-selective interaction towards oxidizing and reducing gases. The structural and the optical merits of TYPE-1 sensor are investigated giving more insights into the role of light activation on the modu-lation of the self-powered sensing response. In the TYPE-2 sensor, the selectivity of inorganic materials is tailored through surface functionalization with self-assembled organic monolayers (SAMs). Such hybrid interfaces (e.g. SAMs/ZnO/p-Si) have specific surface interactions with target gases compared to the non-specific oxidation-reduction interactions governing the sensing mechanism of simple inorganic sensors. The theoretical modeling using density functional theory (DFT) has been used to simulate the sensing behavior of inorganic/organic/gas interfaces, revealing that the alignment of organic/gas frontier molecular orbitals with respect to the inorganic Fermi level is the key factor for tuning selectivity. These platforms open new avenues for developing advanced energy-neutral gas sensing devices and concepts. | - |
dc.format.extent | 11 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Chemical Society | - |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/10.1021/acssensors.6b00508 | - |
dc.relation.isformatof | Versió postprint del document publicat a: http://dx.doi.org/10.1021/acssensors.6b00508 | - |
dc.relation.ispartof | ACS Sensors, 2016, vol.1, num.10, p. 1256–1264 | - |
dc.relation.uri | http://dx.doi.org/10.1021/acssensors.6b00508 | - |
dc.rights | (c) American Chemical Society , 2016 | - |
dc.source | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) | - |
dc.subject.classification | Detectors de gasos | - |
dc.subject.classification | Nanoestructures | - |
dc.subject.classification | Semiconductors | - |
dc.subject.other | Gas detectors | - |
dc.subject.other | Nanostructures | - |
dc.subject.other | Semiconductors | - |
dc.title | Integrated Strategy toward Self-Powering and Selectivity Tuning of Semiconductor Gas Sensors | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 664220 | - |
dc.date.updated | 2016-10-07T11:21:20Z | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/336917/EU//BETTERSENSE | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Institut de Nanociència i Nanotecnologia (IN2UB)) Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Publicacions de projectes de recerca finançats per la UE |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
664220.pdf | 1.13 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.