Cathode Interface Layer Based on Organosilica Nanodots for Efficient and Stable Inverted Organic Solar Cells

Li, Yuting; Cui, Mengqi; Li, Na; Xia, Tian; Hao, Xiujuan; Zhang, Yangyang; Wang, Yuying; Wang, Rong; Qiu, Rong; Zhou, Guofu; Li, Nian

doi:10.1021/acsaem.2c02099

Cited by 6 publications

(3 citation statements)

References 38 publications

(50 reference statements)

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“…The cathode interfacial layer (CIL) is a crucial component in improving the efficiency and lifetime of BHJ polymer solar cells 57 , 58 . The thickness of the cathode layer plays a significant role in altering key cell parameters such as V oc and J sc .…”

Section: Resultsmentioning

confidence: 99%

Broadband PM6Y6 coreshell hybrid composites for photocurrent improvement and light trapping

Sanad,

Ghanim,

Gad

et al. 2024

Sci Rep

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Our research focuses on enhancing the broadband absorption capability of organic solar cells (OSCs) by integrating plasmonic nanostructures made of Titanium nitride (TiN). Traditional OSCs face limitations in absorption efficiency due to their thickness, but incorporating plasmonic nanostructures can extend the path length of light within the active material, thereby improving optical efficiency. In our study, we explore the use of refractory plasmonics, a novel type of nanostructure, with TiN as an example of a refractory metal. TiN offers high-quality localized surface plasmon resonance in the visible spectrum and is cost-effective, readily available, and compatible with CMOS technology. We conducted detailed numerical simulations to optimize the design of nanostructured OSCs, considering various shapes and sizes of nanoparticles within the active layer (PM6Y6). Our investigation focused on different TiN plasmonic nanostructures such as nanospheres, nanocubes, and nanocylinders, analyzing their absorption spectra in a polymer environment. We assessed the impact of their incorporation on the absorbed power and short-circuit current (Jsc) of the organic solar cell.

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Section: Resultsmentioning

confidence: 99%

Broadband PM6Y6 coreshell hybrid composites for photocurrent improvement and light trapping

Sanad,

Ghanim,

Gad

et al. 2024

Sci Rep

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“…The OSiNDs were prepared by a simple one-step hydrothermal strategy, and the chemical structure of low-cost raw materials and the synthesis method are shown in Figure 1a. 31 The zinc acetate (ZnAc) was dissolved in the 2-methoxyethanol solvent to form a precursor solution and spin-coated on ITO substrates with annealing in the air for 200 °C for 40 min. The detailed processing diagrams are shown in Figure 1b.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Combining ZnO and Organosilica Nanodots as a Thick Cathode Interlayer for Highly Efficient and Stable Inverted Polymer Solar Cells

Cui

et al. 2023

ACS Appl. Energy Mater.

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Low-work-function metal oxides as cathode interlayers are widely used in polymer organic solar cells (PSCs), but the surface defect and intrinsic photocatalysis issues severely affect the high efficiency, thickness insensitivity, and stability of PSCs. In this work, we used organosilica nanodots (OSiNDs) to modify ZnO as cathode interlayers via the self-assembly method. The ZnO/OSiNDs bilayer can acquire a suitable work function and a high conductivity of 5.87 × 10–4 S m–1. Through systematic studies, there is stable surface coordination interaction of Zn–N bonding between ZnO and OSiNDs. In i-PSCs, using D18:Y6 as the active layer, the ZnO/OSiNDs-based device achieves the best PCE of 17.87%. More importantly, due to the high conductivity, the PCE for the device based on a 68 nm thick ZnO/OSiNDs interlayer is still high up to 16.53%, while the PCE for the device based on a 66 nm thick ZnO interlayer is only 13.18%. For photostability, the PCE of the device based on the ZnO/OSiNDs interlayer maintains 95% of its original value after continuous AM 1.5G illumination (contains UV light) at 100 mW/cm2 for 600 min, while that of the ZnO-based device only maintains 72% of the original value. This work suggests that ZnO/OSiNDs can be utilized as a cathode interlayer to fabricate highly efficient and stable PSC over a wide range of thicknesses.

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“…necessary to remove the surface defects by hydrogen treatment or treatment with small molecules such as polar solvents, ethanedithiol, phenols, and glycine, or to passivate them by adding an additional layer on the ZnO layer such as organosilica nanodots. [39][40][41][42][43][44] The quality of the solution-processed ZnO layer depends strongly on the ZnO precursor solution. Therefore, it is difficult to accurately predict the number of hydroxyl and carbonyl groups on the ZnO surface.…”

Section: Doi: 101002/solr202300178mentioning

confidence: 99%

Low‐Temperature Prepared ZnO Layer with Electron Beam Annealing Process for Enhancing the Environmental, Thermal, and Operational Stability of Organic Photovoltaics

2023

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The commercialization of organic photovoltaics (OPVs) requires a high level of stability and a high‐power conversion efficiency (PCE). To satisfy these requirements, inverted OPVs with electron transport layers of ZnO obtained by electron beam annealing (EBA) are fabricated, and their properties are compared with those of a reference device with a thermal‐treated ZnO layer. Electrons are extracted from Ar plasma and accelerated by supplying a negative DC voltage; the ZnO layer is annealed using the energy from the accelerated electrons. The PCE of the OPV with a ZnO layer obtained by the optimal EBA process is 15.6%, which is 11.4% higher than that of the reference device. In addition, the OPV device retains 90.1% of its initial PCE after it is stored at room temperature for 30 days and 70.1% of the initial PCE after 280 h at 90 °C. Further, the operational stability is measured for 500 min at the maximum power point under 1 sun illumination in ambient air. The OPV with the ZnO layer treated under optimal EBA conditions retains 85.0% of the initial PCE and shows outstanding environmental and thermal stability.

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Cathode Interface Layer Based on Organosilica Nanodots for Efficient and Stable Inverted Organic Solar Cells

Cited by 6 publications

References 38 publications

Broadband PM6Y6 coreshell hybrid composites for photocurrent improvement and light trapping

Broadband PM6Y6 coreshell hybrid composites for photocurrent improvement and light trapping

Combining ZnO and Organosilica Nanodots as a Thick Cathode Interlayer for Highly Efficient and Stable Inverted Polymer Solar Cells

Low‐Temperature Prepared ZnO Layer with Electron Beam Annealing Process for Enhancing the Environmental, Thermal, and Operational Stability of Organic Photovoltaics

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