Multidisciplinary; Physics

Thermal conductivity of Bi2Te3 nanowires: how size affects phonon scattering

Authors: Rojo, MM; Abad, B; Manzano, CV; Torres, P; Cartoixa, X; Alvarez, FX; Gonzalez, MM Article. Nanoscale. vol: 9. page: 2040-3364. Date: may-28. 2017. Doi: 10.1039/c7nr02173a. Abstract: This work provides an in-depth study of how the thermal conductivity of stoichiometric [110] Bi2Te3 nanowires becomes affected when reducing its diameter from an experimental and theoretical point of

Thermoelectric Skutterudite/oxide nanocomposites: Effective decoupling of electrical and thermal conductivity by functional interfaces

Authors: Moure, A; Rull-Bravo, M; Abad, B; Del Campo, A; Rojo, MM; Aguirre, MH; Jacquot, A; Fernandez, JF; Martin-Gonzalez, M Article. Nano Energy. vol: 31. page: 2211-2855. Date: JAN. 2017. Doi: 10.1016/j.nanoen.2016.11.041. Abstract: Nanocomposites that combine percolated nano-CoSb3 semiconductors with isolated nano-oxide clusters are shown as an effective approach to decouple electrical and thermal conductivity in

The fingerprint of Te-rich and stoichiometric Bi2Te3 nanowires by Raman spectroscopy

Authors: Rodriguez-Fernandez, C; Manzano, CV; Romero, AH; Martin, J; Martin-Gonzalez, M; de Lima, MM; Cantarero, A Article. Nanotechnology. vol: 27. page: 0957-4484. Date: feb-09. 2016. Doi: 10.1088/0957-4484/27/7/075706. Abstract: We unambiguously show that the signature of Te-rich bismuth telluride is the appearance of three new peaks in the Raman spectra of Bi2Te3, located at 88, 117 and

High electrical conductivity in out of plane direction of electrodeposited Bi2Te3 films

Authors: Rojo, MM; Manzano, CV; Granados, D; Osorio, MR; Borca-Tasciuc, T; Martin-Gonzalez, M Article. AIP Adv.. vol: 5. page: 1070-6631. Date: AUG. 2015. Doi: 10.1063/1.4928863. Abstract: The out of plane electrical conductivity of highly anisotropic Bi2Te3 films grown via electro-deposition process was determined using four probe current-voltage measurements performed on 4.6-7.2 mu m thickness Bi2Te3 mesa

Decrease in thermal conductivity in polymeric P3HT nanowires by size-reduction induced by crystal orientation: new approaches towards thermal transport engineering of organic materials (vol 6, pg 7858, 2014)

Authors: Rojo, MM; Martin, J; Grauby, S; Borca-Tasciuc, T; Dilhaire, S; Martin-Gonzalez, M Correction. Nanoscale. vol: 7. page: 2040-3364. Date: . 2015. Doi: 10.1039/c5nr90020d. Abstract: .

Decrease in thermal conductivity in polymeric P3HT nanowires by size-reduction induced by crystal orientation: new approaches towards thermal transport engineering of organic materials

Authors: Rojo, MM; Martin, J; Grauby, S; Borca-Tasciuc, T; Dilhaire, S; Martin-Gonzalez, M Article. Nanoscale. vol: 6. page: 2040-3364. Date: . 2014. Doi: 10.1039/c4nr00107a. Abstract: To date, there is no experimental characterization of thermal conductivity of semiconductor polymeric individual nanowires embedded in a matrix. This work reports on scanning thermal microscopy measurements in a 3 omega

Poly(3-hexylthiophene) nanowires in porous alumina: internal structure under confinement

Authors: Martin, J; Campoy-Quiles, M; Nogales, A; Garriga, M; Alonso, MI; Goni, AR; Martin-Gonzalez, M Article. Soft Matter. vol: 10. page: 1744-683X. Date: . 2014. Doi: 10.1039/c3sm52378k. Abstract: We study the structure of poly(3-hexylthiophene) (P3HT) subjected to nanoscale confinement in two dimensions (2D) as imposed by the rigid walls of nanopore anodic aluminum oxide (AAO) templates.

Review on measurement techniques of transport properties of nanowires

Authors: Rojo, MM; Calero, OC; Lopeandia, AF; Rodriguez-Viejo, J; Martin-Gonzalez, M Review. Nanoscale. vol: 5. page: 2040-3364. Date: . 2013. Doi: 10.1039/c3nr03242f. Abstract: Physical properties at the nanoscale are novel and different from those in bulk materials. Over the last few decades, there has been an ever growing interest in the fabrication of nanowire structures for

Ordered arrays of polymeric nanopores by using inverse nanostructured PTFE surfaces

Authors: Martin, J; Martin-Gonzalez, M; del Campo, A; Reinosa, JJ; Fernandez, JF Article. Nanotechnology. vol: 23. page: 0957-4484. Date: sep-28. 2012. Doi: 10.1088/0957-4484/23/38/385305. Abstract: We present a simple, efficient, and high-throughput methodology for the fabrication of ordered nanoporous polymeric surfaces with areas in the range of cm(2). The procedure is based on a two-stage replication of

The use of PEEK nanorod arrays for the fabrication of nanoporous surfaces under high temperature: SiNx example

Authors: Martin, J; Martin-Gonzalez, M Article. Nanoscale. vol: 4. page: 2040-3364. Date: . 2012. Doi: 10.1039/c2nr30885a. Abstract: Large area silicon nitride (SiNx) nanoporous surfaces are fabricated using poly(ether-ether-ketone) (PEEK) nanorod arrays as a template. The procedure involves manipulation of nanoporous anodic aluminum oxide (AAO) templates in order to form an ordered array of PEEK nanopillars with

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