2026-04-29T16:00:01Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/110622025-11-15T01:05:27Zcom_10259_5822com_10259_5086com_10259_2604col_10259_5823

Ruiz Fernández, Virginia 858 600 0000-0002-0466-0634 Fernández, Iván 811a817a-fd15-40b5-8b4e-00babcedff8e Carrasco, Pedro Mª 9f0226d1-c48e-47a6-93c6-8f798ef8ee45 600 Cabañero, Germán 11f17b6d-9a71-41e2-9707-9270bcbedf49 600 Grande, Hans J. c8ff9d1e-6b7b-4b80-ac09-068a3faaa23f 600 Herrán, Jaime 4ecb5412-3e5e-4ea9-b56f-5fd4a7dc9390 2025-11-14T12:00:20Z 2025-11-14T12:00:20Z 2015-10 0925-4005 https://hdl.handle.net/10259/11062 10.1016/j.snb.2015.04.092 A room temperature graphene quantum dots (GQDs) based sensing material for relative humidity monitoring is presented. GQDs are synthesized by pyrolysis of citric acid and are deposited on a metallic interdigitated microelectrodes by drop-casting technology. GQDs are nanosheets around 20 nm in average lateral size and an average height of 2.7 ± 0.9 nm. The response time is around few seconds and the sensitivity shows an exponential relation between 15 and 80% of RH, in resistive configuration device working at room temperature. The electrical changes as a function of the RH are related to the capillary condensation produced on the surface of the GQDs. Due to this physical behavior, a resistive path is formed between the microelectrodes and the condensed water vapor, and the resistivity of the system diminishes as the RH increases. A comparison on real time between the sensor developed and a commercial device corroborates the potential application of the novel sensor presented in this work. Financial support from the Spanish MICINN (V.R. Ramón y Cajal Program), the Basque Government (Etortek Program, nanoIKER project IE11-304) and the project Hyper (Hybrid Neuroprosthetic and Neurorobotic Devices for Functional Compensation and Rehabilitation of Motor Disorders) under program Consolider-Ingenio 2010–2014, is gratefully acknowledged. application/pdf eng Elsevier Sensors and Actuators B: Chemical. 2015, V. 218, p. 73-77 https://doi.org/10.1016/j.snb.2015.04.092 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Graphene quantum dots Humidity sensors Capillary condensation Resistive device Room temperature Química analítica Ciencia de materiales Chemistry, Analytic Materials science Graphene quantum dots as a novel sensing material for low-cost resistive and fast-response humidity sensors info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Sensors and Actuators B: Chemical 218 73 77 THUMBNAIL Ruiz-sabc_2015.pdf.jpg Ruiz-sabc_2015.pdf.jpg IM Thumbnail image/jpeg 3710 https://riubu.ubu.es/bitstream/10259/11062/4/Ruiz-sabc_2015.pdf.jpg 32da4f1af9e93aaae6a3d4d79f69c96d MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/11062/3/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/11062/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Ruiz-sabc_2015.pdf Ruiz-sabc_2015.pdf application/pdf 642753 https://riubu.ubu.es/bitstream/10259/11062/1/Ruiz-sabc_2015.pdf 412347cc5cfe325659d626fe9f254353 MD5 1 10259/11062 oai:riubu.ubu.es:10259/11062 2025-11-15 02:05:27.334 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es RWwgYXV0b3IgY29tbyDDum5pY28gdGl0dWxhciBkZSBsb3MgZGVyZWNob3MgZGUgcHJvcGllZGFkIGludGVsZWN0dWFsIGRlIGxhIG9icmEsIG8gZGlzcG9uaWVuZG8gZGUgbG9zIGRlYmlkb3MgcGVybWlzb3MgZGUgbG9zIG90cm9zIHRpdHVsYXJlcywgc2kgbG9zIGh1YmllcmEsIHkgZW4gdmlydHVkIGRlIGxvcyBkZXJlY2hvcyBxdWUgbGUgY29uZmllcmUgbGEgbGVnaXNsYWNpw7NuIHZpZ2VudGUgc29icmUgcHJvcGllZGFkIGludGVsZWN0dWFsIHkgZGVyZWNob3MgZGUgYXV0b3IsIA0KQVVUT1JJWkEgYSBsYSBVbml2ZXJzaWRhZCBkZSBCdXJnb3MgYSBkaWZ1bmRpciwgZGUgbWFuZXJhIGdyYXR1aXRhLCBlbCBjb250ZW5pZG8gZGUgbG9zIGFyY2hpdm9zIGRpZ2l0YWxlcyBxdWUgY29ycmVzcG9uZGVuIGFsIGRvY3VtZW50byBkZXNjcml0byBhbnRlcmlvcm1lbnRlLCBjb24gY2Fyw6FjdGVyIG5vIGV4Y2x1c2l2byB5IGRlIG1hbmVyYSBww7pibGljYSBlbiBhY2Nlc28gYWJpZXJ0byBhIHRyYXbDqXMgZGUgSW50ZXJuZXQsIHBhcmEgbG8gcXVlIGxhIEJpYmxpb3RlY2EgcHJvY2VkZXLDoSBhIGFyY2hpdmFybG9zIGVuIGVsIFJlcG9zaXRvcmlvIEluc3RpdHVjaW9uYWwuIEFzaW1pc21vIGF1dG9yaXphIGEgbGEgVW5pdmVyc2lkYWQgZGUgQnVyZ29zIGEgcmVhbGl6YXIgbGFzIHRyYW5zZm9ybWFjaW9uZXMgbmVjZXNhcmlhcyBkZSBmb3JtYXRvLCBubyBkZSBjb250ZW5pZG8sIHBhcmEgZ2FyYW50aXphciBsYSBwcmVzZXJ2YWNpw7NuIHkgZWwgYWNjZXNvIGVuIGVsIGZ1dHVyby4NCg0KRWwgYXV0b3IgZGlzcG9uZSwgZW4gdG9kbyBjYXNvLCBkZWwgZGVyZWNobyBhIHJldm9jYXIgZXN0YSBhdXRvcml6YWNpw7NuLg0KDQpMYSBjZXNpw7NuIGRlIGRlcmVjaG9zIGRlIGVzdGEgb2JyYSBzZSBlbmN1ZW50cmEgc3VqZXRhIGEgbGEgbGVnaXNsYWNpw7NuIHZpZ2VudGUgc29icmUgcHJvcGllZGFkIGludGVsZWN0dWFsIHkgZGVyZWNob3MgZGUgYXV0b3Iu