@article{WOS:000252497500007, abstract = {Lithium-insertion during the arc discharge growth process is investigated by using resonance Raman spectroscopy combined with ab initio calculations. The measurements were performed using two pairs of single-wall carbon nanotubes, one of the members being prepared employing a lithium-contained catalyst and the other its lacking lithium counterpart. The lowest wave number lines were observed as selective resonances for the first pair for which a line occurs at 142.3 cm(-1) from the Li-catalyst prepared sample and at 162.2 cm(-1) for the non-lithium case. The remaining lines are seen in both samples. For the second pair the first two lower-lying lines are selectively seen for the non-lithium sample while for the lithium-contained catalyst case the two highest wave number lines are selectively observed. These different resonance conditions lead us to perform electronic property calculations. The results show that this effect can be tracked to the charge transfer occurring from lithium atoms inserted into the bundles. Calculation shows that the transfer is limited to a Li-insertion rate of Li6C68. (c) 2007 Elsevier B.V. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS}, author = {Guerini, S and Lemos, V and Filho, J Mendes and Montoro, L A and Matsubara, E Y and Rosolen, J M}, biburl = {https://www.bibsonomy.org/bibtex/23ce0b16be3347352cffa5e2caa49699c/ppgfis_ufc_br}, doi = {10.1016/j.vibspec.2007.05.005}, interhash = {02938833aa020f39552dbf47e1519d9a}, intrahash = {3ce0b16be3347352cffa5e2caa49699c}, issn = {0924-2031}, journal = {VIBRATIONAL SPECTROSCOPY}, keywords = {ab calculations; carbon charge effects; electronic initio nanotubes; nanotubes} of properties structural transfer {carbon}, note = {Workshop on Foundations and Applications of Raman Spectroscopy, Ceara, BRAZIL, SEP 24-26, 2006}, number = {2, SI}, pages = {103-107}, publisher = {ELSEVIER}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Li-insertion into carbon nanotubes: Experiment and theory}, tppubtype = {article}, volume = 45, year = 2007 } @article{doi:10.1021/acs.jpclett.7b00595, abstract = { We demonstrate that efficient and nearly field-independent charge separation of electron–hole pairs in organic planar heterojunction solar cells can be described by an incoherent hopping mechanism. Using kinetic Monte Carlo simulations that include the effect of on-chain delocalization as well as entropic contributions, we simulate the dissociation of the charge-transfer state in polymer–fullerene bilayer solar cells. The model further explains experimental results of almost field independent charge separation in bilayers of molecular systems with fullerenes and provides important guidelines at the molecular level for maximizing the efficiencies of organic solar cells. Thus, utilizing coherent phenomena is not necessarily required for highly efficient charge separation in organic solar cells. }, added-at = {2017-07-24T14:34:48.000+0200}, author = {Athanasopoulos, Stavros and Tscheuschner, Steffen and Bässler, Heinz and Köhler, Anna}, biburl = {https://www.bibsonomy.org/bibtex/203458c85c2878a2aa20c4d5e9e9678ef/woepps}, doi = {10.1021/acs.jpclett.7b00595}, eprint = {http://dx.doi.org/10.1021/acs.jpclett.7b00595}, interhash = {50adadeee4683b4ae83f7ffa05d30ce9}, intrahash = {03458c85c2878a2aa20c4d5e9e9678ef}, journal = {The Journal of Physical Chemistry Letters}, keywords = {cell charge interface organic separation solar state transfer}, note = {PMID: 28436660}, number = 9, pages = {2093-2098}, timestamp = {2017-07-24T14:34:48.000+0200}, title = {Efficient Charge Separation of Cold Charge-Transfer States in Organic Solar Cells Through Incoherent Hopping}, url = {http://dx.doi.org/10.1021/acs.jpclett.7b00595}, volume = 8, year = 2017 } @article{zhang2016elaborately, added-at = {2016-11-15T19:44:44.000+0100}, author = {Zhang, Jing and Chen, Zhao and Yang, Lan and Pan, Fang-Fang and Yu, Guang-Ao and Yin, Jun and Liu, Sheng Hua}, biburl = {https://www.bibsonomy.org/bibtex/271062864d149a2ba8778965a81b479f6/martinstreiter}, interhash = {da857cebe77be6c7196c4d869406185d}, intrahash = {71062864d149a2ba8778965a81b479f6}, journal = {Scientific Reports}, keywords = {Electron Intramolecular Transfer charge ct cts interfacial morphology}, pages = 36310, publisher = {Nature Publishing Group}, timestamp = {2016-11-15T19:44:44.000+0100}, title = {Elaborately Tuning Intramolecular Electron Transfer Through Varying Oligoacene Linkers in the Bis (diarylamino) Systems}, volume = 6, year = 2016 } @article{doi:10.1021/acs.jpcb.6b05589, abstract = { Ultrafast energy and electron transfer (EnT and ET, respectively) are characterized in a light-harvesting assembly based on a π-conjugated polymer (poly(fluorene)) functionalized with broadly absorbing pendant organic isoindigo (iI) chromophores using a combination of femtosecond transient absorption spectroscopy and large-scale computer simulation. Photoexcitation of the π-conjugated polymer leads to near-unity quenching of the excitation through a combination of EnT and ET to the iI pendants. The excited pendants formed by EnT rapidly relax within 30 ps, whereas recombination of the charge-separated state formed following ET occurs within 1200 ps. A computer model of the excited-state processes is developed by combining all-atom molecular dynamics simulations, which provides a molecular-level view of the assembly structure, with a kinetic model that accounts for the multiple excited-state quenching pathways. Direct comparison of the simulations with experimental data reveals that the underlying structure has a dramatic effect on the partitioning between EnT and ET in the polymer assembly, where the distance and orientation of the pendants in relation to the backbone serve to direct the dominant quenching pathway. }, added-at = {2016-09-06T10:55:40.000+0200}, author = {Morseth, Zachary A. and Pho, Toan V. and Gilligan, Alexander T. and Dillon, Robert J. and Schanze, Kirk S. and Reynolds, John R. and Papanikolas, John M.}, biburl = {https://www.bibsonomy.org/bibtex/2e0a51972d373bd3888595a40aee75d51/gmue}, doi = {10.1021/acs.jpcb.6b05589}, eprint = {http://dx.doi.org/10.1021/acs.jpcb.6b05589}, interhash = {e25f8bdbc9d79f396de960c90cdc3966}, intrahash = {e0a51972d373bd3888595a40aee75d51}, journal = {The Journal of Physical Chemistry B}, keywords = {charge molecules structure transfer}, note = {PMID: 27433946}, number = 32, pages = {7937-7948}, timestamp = {2016-09-06T10:55:40.000+0200}, title = {Role of Macromolecular Structure in the Ultrafast Energy and Electron Transfer Dynamics of a Light-Harvesting Polymer}, url = {http://dx.doi.org/10.1021/acs.jpcb.6b05589}, volume = 120, year = 2016 } @article{doi:10.1021/acsnano.6b02865, abstract = { We study the charge transfer (CT) states in small-molecule blend heterojunctions comprising the nonpolar donor, tetraphenyldibenzoperiflanthene (DBP), and the acceptor, C70, using electroluminescence and steady-state and time-resolved photoluminescence spectroscopy along with density functional theory calculations. We find that the CT exciton energy blue shifts as the C70 concentration in the blend is either decreased or increased away from 50 vol \%. At 20 K, the increase in CT state lifetime is correlated with the increasing diameter of C70 nanocrystallites in the blends. A quantum confinement model is used to quantitatively describe the dependence of both CT energy and lifetime on the C70 or DBP domain size. Two discrete CT emission peaks are observed for blends whose C70 concentration is >65\%, at which point C70 nanocrystallites with diameters >4 nm appear in high-resolution transmission electron micrographs. The presence of two CT states is attributed to coexistence of crystalline C70 and amorphous phases in the blends. Furthermore, analysis of CT dissociation efficiency versus photon energy suggests that the >90\% dissociation efficiency of delocalized CT2 states from the crystalline phase significantly contributes to surprisingly efficient photogeneration in highly dilute (>80\% C70) DBP/C70 heterojunctions. }, added-at = {2016-09-02T10:26:35.000+0200}, author = {Liu, Xiao and Ding, Kan and Panda, Anurag and Forrest, Stephen R.}, biburl = {https://www.bibsonomy.org/bibtex/21334709a49290851ed62ae1d59179ab6/danies}, description = {Charge Transfer States in Dilute Donor–Acceptor Blend Organic Heterojunctions - ACS Nano (ACS Publications)}, doi = {10.1021/acsnano.6b02865}, eprint = {http://dx.doi.org/10.1021/acsnano.6b02865}, interhash = {dd877df8b2fee6fc6a7fce2a94b3b631}, intrahash = {1334709a49290851ed62ae1d59179ab6}, journal = {ACS Nano}, keywords = {charge dilute molecules small state transfer}, note = {PMID: 27487403}, number = 8, pages = {7619-7626}, timestamp = {2016-09-02T10:26:35.000+0200}, title = {Charge Transfer States in Dilute Donor–Acceptor Blend Organic Heterojunctions}, url = {http://dx.doi.org/10.1021/acsnano.6b02865}, volume = 10, year = 2016 }