Structure-induced resonant tail-state regime absorption in polymer: fullerene bulk-heterojunction solar cells

Pfadler, Thomas; Kiel, T.; Stärk, Martin; Werra, Julia F. M.; Matyssek, Christian; Sommer, Daniel; Boneberg, Johannes; Busch, Kurt; Weickert, Jonas; Schmidt‐Mende, Lukas

doi:10.1103/physrevb.93.205305

Cited by 2 publications

(2 citation statements)

References 37 publications

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“…Here, SiO 2 is modeled with a constant relative permittivity ϵ = 2.165. The TiO 2 layers of the DBRs as well as the silver grating are fully modeled by appropriate Drude–Lorentz models describing their susceptibilities (see [ 26,27 ] for fit parameters). In addition, a nonlinear four‐level system material model [ 28,29 ] is used to describe the Alq 3 :DCM organic material.…”

Section: Theoretical Modelmentioning

confidence: 99%

Defect‐State Lasing in Photonic Lattices of Metal–Organic Microcavities

Kliem

Kiel

Kuck

et al. 2021

Advanced Photonics Research

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Photonic band structure engineering has developed into an important technique for controlling the emission and interaction of photons and polaritons in microcavities (MCs). Herein, lasing from defect states (DSs) in photonic Kronig–Penney structures embedded into metal–organic MCs is demonstrated. As compared to the more delocalized lasing states associated with photonic bands, these DSs exhibit improved lasing thresholds that lie even below the lasing threshold of the metal‐free cavity. The characteristics of these DSs are determined via full electrodynamic computations based on the discontinuous Galerkin time‐domain method.

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Section: Theoretical Modelmentioning

confidence: 99%

Defect‐State Lasing in Photonic Lattices of Metal–Organic Microcavities

Kliem

Kiel

Kuck

et al. 2021

Advanced Photonics Research

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“…PMEs with one-dimensionally arrayed patterns [ 8 , 9 , 14 – 19 ] (i.e., 2D PMEs) can be easily fabricated based on the two-beam interference technique [ 20 ]; however, the absorption enhancement in OSCs is sensitive to polarization since plasmonic modes cannot be excited at the traverse electric (TE) polarized incidence [ 10 ]. PMEs with two-dimensionally (2D) arrayed patterns (i.e., 3D PMEs), which can boost light harvesting efficiency polarization insensitively, have been extensively investigated in the past few years [ 14 , 21 – 31 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Nanohole-Type and Nanopillar-Type Patterned Metallic Electrodes Incorporated in Organic Solar Cells

et al. 2017

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Both the nanohole- and nanopillar-type patterned metallic electrodes (PMEs) have been introduced in organic solar cells (OSCs) for improving device performances experimentally, but there is few work addressing the similarities and differences between them. In this theoretical work, we systematically compare the impact of the nanohole- and nanopillar-type PMEs on the performance of an OSC based on hybridized cavity resonances. By optimizing the geometrical parameters of each PME, we obtained an interesting result that the integrated absorption efficiencies in the active layer with different optimized PMEs are almost the same (both are equal to 82.4%), outperforming that of the planar control by 9.9%. Though the absorption enhancement spectra of the two different optimal devices are similar as well, the mechanisms of light trapping at the corresponding enhancement peaks are distinct from each other. In a comprehensive view, the nanopillar-type PME is suggested to be applied in the present system, since its optimal design has a moderate filling ratio, which is much easier to fabricate than its counterpart. This work could contribute to the development of high-efficiency OSCs.

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Structure-induced resonant tail-state regime absorption in polymer: fullerene bulk-heterojunction solar cells

Cited by 2 publications

References 37 publications

Defect‐State Lasing in Photonic Lattices of Metal–Organic Microcavities

Defect‐State Lasing in Photonic Lattices of Metal–Organic Microcavities

Comparison of Nanohole-Type and Nanopillar-Type Patterned Metallic Electrodes Incorporated in Organic Solar Cells

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