title: Plasmonic structure enhanced exciton generation at the interface between the perovskite absorber and copper nanoparticles.
abstract: The refractive index and extinction coefficient of a triiodide perovskite absorber (TPA) were obtained by fitting the transmittance spectra of TPA/PEDOT:PSS/ITO/glass using the transfer matrix method. Cu nanoplasmonic structures were designed to enhance the exciton generation in the TPA and to simultaneously reduce the film thickness of the TPA. Excitons were effectively generated at the interface between TPA and Cu nanoparticles, as observed through the 3D finite-difference time-domain method. The exciton distribution is advantageous for the exciton dissociation and carrier transport.
authors.affiliation: Research Center for New Generation Photovoltaics, National Central University, No. 300 Jhongda Road, Jhongli, Taoyuan County 32001, Taiwan.
authors.forename: Sheng Hsiung
authors.identifier: 0000-0003-1488-1649
authors.initials: SH
authors.lastname: Chang
authors.affiliation: Department of Optics and Photonics, National Central University, No. 300 Jhongda Road, Jhongli, Taoyuan County 32001, Taiwan.
authors.forename: Kuen-Feng
authors.initials: KF
authors.lastname: Lin
authors.affiliation: Research Center for New Generation Photovoltaics, National Central University, No. 300 Jhongda Road, Jhongli, Taoyuan County 32001, Taiwan.
authors.forename: Chien-Hung
authors.initials: CH
authors.lastname: Chiang
authors.affiliation: Department of Optics and Photonics, National Central University, No. 300 Jhongda Road, Jhongli, Taoyuan County 32001, Taiwan.
authors.forename: Sheng-Hui
authors.identifier: 0000-0003-0032-6433
authors.initials: SH
authors.lastname: Chen
authors.affiliation: Research Center for New Generation Photovoltaics, National Central University, No. 300 Jhongda Road, Jhongli, Taoyuan County 32001, Taiwan.
authors.forename: Chun-Guey
authors.initials: CG
authors.lastname: Wu
mesh_terms: D017610:Calcium Compounds / Q000032:analysis / Q000737:chemistry*; D003300:Copper / Q000032:analysis / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000032:analysis / Q000737:chemistry*; D009930:Organic Chemicals / Q000032:analysis / Q000737:chemistry; D010087:Oxides / Q000032:analysis / Q000737:chemistry*; D014025:Titanium / Q000032:analysis / Q000737:chemistry*
chemical_list: D017610:Calcium Compounds; D009930:Organic Chemicals; D010087:Oxides; C059910:perovskite; C057718:6-(Dimethylamino)-2-((1E,3E)-4-(4-(dimethylamino)phenyl)-1,3-butadien-1-yl)-1-ethylquinolinium perchlorate; D003300:Copper; D014025:Titanium