dc.contributor.author | SANVITO, STEFANO | en |
dc.date.accessioned | 2017-01-13T11:35:35Z | |
dc.date.available | 2017-01-13T11:35:35Z | |
dc.date.issued | 2016 | en |
dc.date.submitted | 2016 | en |
dc.identifier.citation | Motta C, Mandal P, Sanvito S, Effects of molecular dipole orientation on the exciton binding energy of CH3NH3PbI3, Physical Review B - Condensed Matter and Materials Physics, 94, 4, 2016, 045202 - | en |
dc.identifier.other | Y | en |
dc.description | PUBLISHED | en |
dc.description.abstract | We present a simple interacting tight-binding model for excitons, which is used to investigate the dependence
of the exciton binding energy of CH
3
NH
3
PbI
3
over the disorder induced by the molecular motion at room
temperature. The model is fitted to the electronic structure of CH
3
NH
3
PbI
3
by using data from density-functional
theory and Born-Oppenheimer
ab initio
molecular dynamics, and it is solved in the mean-field approximation.
When a finite-scale analysis is performed to extract the energetic of the excitons at experimental concentrations
we find that disorder in general reduces the binding energy of about 10%. This suggests that the excitonic
properties of CH
3
NH
3
PbI
3
largely depend on the electronic structure of the PbI
3
inorganic lattice | en |
dc.description.sponsorship | This work is sponsored by the European Research Council
QUEST project (Ref. No. 307891). Computational resources
have been provided by the supercomputer facilities at the
Trinity Center for High Performance Computing at ICHEC
(Project No. tcphy066b). P.M. acknowledges additional finan-
cial support from CRANN during his stay in Dublin. | en |
dc.format.extent | 045202 | en |
dc.relation.ispartofseries | Physical Review B - Condensed Matter and Materials Physics | en |
dc.relation.ispartofseries | 94 | en |
dc.relation.ispartofseries | 4 | en |
dc.rights | Y | en |
dc.subject | tight-binding model for excitons | en |
dc.subject.lcsh | tight-binding model for excitons | en |
dc.title | Effects of molecular dipole orientation on the exciton binding energy of CH3NH3PbI3 | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/sanvitos | en |
dc.identifier.rssinternalid | 141051 | en |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevB.94.045202 | en |
dc.rights.ecaccessrights | openAccess | |
dc.identifier.rssuri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978414722&doi=10.1103%2fPhysRevB.94.045202&partnerID=40&md5=1caa865a04baaea320217ad6f97eee9d | en |
dc.identifier.orcid_id | 0000-0002-1203-0077 | en |
dc.identifier.uri | http://hdl.handle.net/2262/78730 | |