We investigate from first principles the effect of many-body corrections on the optoelectronic properties of polyphenanthrene (PPh), a prototype system for carbon-based ladder polymers and I D nanographenes with cis-polyene edges. We show that the inclusion of many-body effects is essential to correctly describe both quasiparticle bandstructure and optical response. Consistently with the reduced dimensionality of the system, the inclusion of electron-hole interaction leads to strongly bound excitons which dominate the spectra. A complete characterization of the low-energy excitonic states is carried out, together with their optical activity. In particular, we find a dark exciton below the first optically active one, which is expected to crucially affect the luminescence efficiency. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
We investigate from first principles the effect of many-body corrections on the optoelectronic properties of polyphenanthrene (PPh), a prototype system for carbon-based ladder polymers and 1D nanographenes with cis-polyene edges. We show that the inclusion of many-body effects is essential to correctly describe both quasiparticle bandstructure and optical response. Consistently with the reduced dimensionality of the system, the inclusion of electron-hole interaction leads to strongly bound excitons which dominate the spectra. A complete characterization of the low-energy excitonic states is carried out, together with their optical activity. In particular, we find a dark exciton below the first optically active one, which is expected to crucially affect the luminescence efficiency. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA,.
Optical properties of one-dimensional graphene polymers: the case of polyphenanthrene / Prezzi, Deborah; D., Varsano; Ruini, Alice; A., Marini; Molinari, Elisa. - In: PHYSICA STATUS SOLIDI B-BASIC RESEARCH. - ISSN 0370-1972. - STAMPA. - 244:11(2007), pp. 4124-4128.
Data di pubblicazione: | 2007 |
Titolo: | Optical properties of one-dimensional graphene polymers: the case of polyphenanthrene |
Autore/i: | Prezzi, Deborah; D., Varsano; Ruini, Alice; A., Marini; Molinari, Elisa |
Autore/i UNIMORE: | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1002/pssb.200776132 |
Rivista: | |
Volume: | 244 |
Fascicolo: | 11 |
Pagina iniziale: | 4124 |
Pagina finale: | 4128 |
Codice identificativo ISI: | WOS:000251355800059 |
Codice identificativo Scopus: | 2-s2.0-36849059747 |
Citazione: | Optical properties of one-dimensional graphene polymers: the case of polyphenanthrene / Prezzi, Deborah; D., Varsano; Ruini, Alice; A., Marini; Molinari, Elisa. - In: PHYSICA STATUS SOLIDI B-BASIC RESEARCH. - ISSN 0370-1972. - STAMPA. - 244:11(2007), pp. 4124-4128. |
Tipologia | Articolo su rivista |
File in questo prodotto:
File | Descrizione | Tipologia | |
---|---|---|---|
prez+07pssb.pdf | Versione dell'editore (versione pubblicata) | Administrator Richiedi una copia |

I documenti presenti in Iris Unimore sono rilasciati con licenza Creative Commons Attribuzione - Non commerciale - Non opere derivate 3.0 Italia, salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris