Colloidal Monolayer β-InSe Nanosheets with High Photoresponsivity.
We report a low-temperature colloidal synthesis of single-layer, five-atom-thick, β-InSe nanosheets with lateral sizes tunable from ~300 to ~900 nm, using short aminonitriles (dicyandiamide or cyanamide) as shape controlling agents. The phase and the monolayer nature of the nanosheets were ascertain...
| Publicado en: | Journal of the American Chemical Society Vol. 139; no. 8; pp. 3005 - 3012 |
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| Autores principales: | , , , , , , , , |
| Formato: | Resumen |
| Publicado: |
American Chemical Society
3/1/2017
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=121537199&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 121537199 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 3/1/2017 vid: 139 iid: 8 pid: 997 pub: American Chemical Society artinfo: ui: 121537199 10.1021/jacs.6b11255 ppf: 3005 ppct: 7 formats: tig: atl: Colloidal Monolayer β-InSe Nanosheets with High Photoresponsivity. aug: au: Almeida, Guilherme Dogan, Sedat Bertoni, Giovanni Giannini, Cinzia Gaspari, Roberto Perissinotto, Stefano Krahne, Roman Ghosh, Sandeep Manna, Liberato affil: Department of Nanochemistry, Istituto Italiano di Tecnologia, via Morego 30, I-16163 Genova, Italy Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso, 31, 16146, Genova, Italy IMEM-CNR, Parco Area delle Scienze 37/A, I-43124 Parma, Italy, Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, via Amendola 122/O, 70126 Bari, Italy CompuNet, Istituto Italiano di Tecnologia, via Morego 30, I-16163 Genova, Italy Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, I-20133 Milan, Italy su: Monomolecular films Calcium cyanamide Dicyandiamide sug: subj: Monomolecular films Calcium cyanamide Dicyandiamide ab: We report a low-temperature colloidal synthesis of single-layer, five-atom-thick, β-InSe nanosheets with lateral sizes tunable from ~300 to ~900 nm, using short aminonitriles (dicyandiamide or cyanamide) as shape controlling agents. The phase and the monolayer nature of the nanosheets were ascertained by analyzing the intensity ratio between two diffraction peaks from two-dimensional slabs of the various phases, determined by diffraction simulations. These findings were further backed-up by comparing and fitting the experimental X-ray diffraction pattern with Debye formula simulated patterns and with side-view high-resolution transmission electron microscopy imaging and simulation. The β-InSe nanosheets were found to be indirect band gap semiconductors (E = 1.55 eV), and single nanosheet photodetectors demonstrated high photoresponsivity and fast response times. pubtype: Academic Journal doctype: Abstract src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2017 holdings: @attributes: islocal: N |
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