@article{6d13bc432f234dada3d5543c9a90e9b2,
title = "Exciton Dissociation and Electron Transfer at a Well-Defined Organic Interface of an Epitaxial C60Layer on a Pentacene Single Crystal",
abstract = "The electron transfer of a well-defined single-crystalline organic P-N interface of the epitaxial layer of C60 on the surface of a single-crystalline pentacene (Pen-SC) was observed using time-resolved photoemission electron microscopy (TR-PEEM) with an optical pump and probe mode. The fine energy-tuning of the probe light and the selected-area detection of the photoelectrons, in addition to the PEEM detection of photoelectrons, allowed the measurement of the dynamics of electrons of rather insulating organic interfaces with a high signal-to-noise ratio, without suffering from the charging of the sample. After determination of the relaxation of the photogenerated electrons in Pen-SC via singlet fission through multiple-exciton states, two distinct electron transfer processes to the LUMO of the C60 layer were clearly observed by direct detection of the time evolution of the electrons in the LUMO of C60. ",
author = "Masato Iwasawa and Ryohei Tsuruta and Yasuo Nakayama and Masahiro Sasaki and Takuya Hosokai and Sunghee Lee and Keiki Fukumoto and Yoichi Yamada",
note = "Funding Information: This work was financially supported by MEXT Q-LEAP Attosecond lasers for next frontiers in science and technology (ATTO), JSPS KAKENHI (Grant Nos. JP15K17677, JP17H06141, JP26286011, JP16K13678, and 15J05607), and JSPS KAKENHI for Scientific Research on Innovative Areas “Soft Crystals” (Area No. 2903, No. JP17H06366). The work was partly performed under the approval of the Photon Factory Program Advisory Committee (Proposal Nos. 2017G030 and 2018S2-005) and UVSOR (19-605). The grazing incidence X-ray diffraction experiments were performed at the BL19B2 of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal No. 2019A1715). Y.N. thanks financial supports from the Futaba Foundation. Publisher Copyright: {\textcopyright} 2020 American Chemical Society.",
year = "2020",
month = jun,
day = "25",
doi = "10.1021/acs.jpcc.0c02796",
language = "English",
volume = "124",
pages = "13572--13579",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "25",
}