Hybrid Organic/Inorganic Thin‐Film Multijunction Solar Cells Exceeding 11% Power Conversion Efficiency

Abstract

Hybrid multijunction solar cells comprising hydrogenated amorphous silicon and an organic bulk heterojunction are presented, reaching 11.7% power conversion efficiency. The benefits of merging inorganic and organic subcells are pointed out, the optimization of the cells, including optical modeling predictions and tuning of the recombination contact are described, and an outlook of this technique is given.

Highly Efficient Hybrid Polymer and Amorphous Silicon Multijunction Solar Cells with Effective Optical Management

“…Therefore, a delicate design of the surface textures is of crucial importance to achieve high‐performance hybrid triple‐junction solar cells. As shown in Figure S10 (Supporting Information), the mildly textured front electrodes as well optimized here result in better performance for hybrid tandem devices than the medium‐textured or highly textured front electrodes, which are commonly used for high‐efficiency a‐Si:H solar cells …”

An Asymmetric Furan/Thieno[3,2‐b]Thiophene Diketopyrrolopyrrole Building Block for Annealing‐Free Green‐Solvent Processable Organic Thin‐Film Transistors

“…The representative examples are thiophene‐based DPP copolymers, PDVT‐8, and PDVT‐10 developed by Liu and co‐workers in 2012, where the incorporation of highly extended (E)‐2‐(2‐(thiophen‐2‐yl)vinyl)thiophene units leads to superior self‐assembly ability for resulting polymers with strong π–π interactions in solid state, and thus giving high charge transport property . Currently, various aromatic groups have been introduced to thiophene‐based DPP units, such as five‐membered rings of selenophene, furan, thiazole, and six‐membered aromatic rings of benzene, pyridine, and many new DPP‐based conjugated polymers have been developed . In addition, extending the size of a DPP‐based building unit, for example, with an additional fused aromatic rings, such as thieno[3,2‐ b ]thiophene units flanked diketopyrrolopyrrole (TTDPP) instead of thiophene, has also been proven to be an efficient approach for high mobility conjugated polymers due to their further extended π‐conjugation with more delocalized electron distribution along the chain backbones .…”

Efficient and Versatile Interconnection Layer by Solvent Treatment of PEDOT:PSS Interlayer for Air‐Processed Organic Tandem Solar Cells

“…Two different donor materials were used for the tandem device: a high band gap polymer, HBG1 (provided by Merck), for the bottom cell, and a low band gap polymer, PMDPP3T, for the top layer. The absorption spectra of the resulting polymer:fullerene blends are reported in Figure a.…”

“…Materials : Donor polymer HBG1 used into the bottom active layer was provided by Merck, while PMDPP3T was synthesized by Polyera following literature procedures, PC 61 BM and PC 71 BM were purchased from Solenne BV. PEDOT:PSS (Clevios, P VP AI 4083) was purchased from Heraeus and was mixed with 1% v/v of Zonyl FS‐300 surfactant provided by Sigma Aldrich.…”