000161123 001__ 161123
000161123 005__ 20251017144648.0
000161123 0247_ $$2doi$$a10.1039/d5nr01235j
000161123 0248_ $$2sideral$$a144265
000161123 037__ $$aART-2025-144265
000161123 041__ $$aeng
000161123 100__ $$aCandia, Adriana E.
000161123 245__ $$aElectronic structure tunability of carbon-based 1D-polymers combining cross-conjugation and nitrogen doping
000161123 260__ $$c2025
000161123 5060_ $$aAccess copy available to the general public$$fUnrestricted
000161123 5203_ $$aQuasi-one-dimensional polymer structures with extended π-electron systems stand out due to their remarkable application in light-emitting diodes and devices. Upon smart choice of their building units, such carbon-based organic nanoarchitectures provide excellent optoelectronic properties by tuning their dimensionality, atomic structure or intrinsic doping. Here, we generate and study three canonical cross-conjugated quasi one-dimensional chains with controlled nitrogen intrinsic doping, which is selectively introduced into their poly-phenylene backbones. By means of scanning tunneling microscopy and spectroscopy we corroborate that the cross-conjugation that break the chain linearity is exclusively responsible of the electronic confinement in the straight segments. Moreover, we demonstrate that the LUMO state exhibits similar spatial distribution for the cross-conjugated polymers independently of the pyridine content of the initial precursor. Despite this coincidence, the semiconducting character and other relevant electronic properties of the polymers are found to depend both on the chain morphology and on the precise position and number of doping nitrogen atoms synthetically introduced into the molecular precursors. We compare these results to related previous studies, which allows us to unambiguously validate the opto-electronic tunability upon the choice of the polymers’ building units.
000161123 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E12-23R$$9info:eu-repo/grantAgreement/ES/DGA/E13-23R$$9info:eu-repo/grantAgreement/EC/H2020/101007825/EU/ULtra ThIn MAgneto Thermal sEnsor-Ing/ULTIMATE-I$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 101007825-ULTIMATE-I$$9info:eu-repo/grantAgreement/ES/MICINN AEI/PID2022-138750NB-C21
000161123 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttps://creativecommons.org/licenses/by-nc/4.0/deed.es
000161123 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000161123 700__ $$aVilas-Varela, Manuel
000161123 700__ $$aAguirre, Myriam H.
000161123 700__ $$aRogero, Celia
000161123 700__ $$0(orcid)0000-0002-3260-9641$$aSerrate, David
000161123 700__ $$aPeña, Diego
000161123 700__ $$0(orcid)0000-0003-2698-2543$$aLobo-Checa, Jorge
000161123 773__ $$g(2025), [10 pp.]$$pNanoscale$$tNanoscale$$x2040-3364
000161123 8564_ $$s2028430$$uhttps://zaguan.unizar.es/record/161123/files/texto_completo.pdf$$yVersión publicada
000161123 8564_ $$s2678470$$uhttps://zaguan.unizar.es/record/161123/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000161123 909CO $$ooai:zaguan.unizar.es:161123$$particulos$$pdriver
000161123 951__ $$a2025-10-17-14:35:25
000161123 980__ $$aARTICLE