Effect of PEIE and polylysine as interfacial layers on the performance of air-processed organic solar cells under both indoor and 1 sun conditions

Lomeri, Hamed Javanbakht; Polino, Giuseppina; Podapangi, Suresh Kumar; Brown, Thomas M.; Brunetti, Francesca

doi:10.1039/d3se00242j

Sustainable Energy Fuels

2023

DOI: 10.1039/d3se00242j

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Effect of PEIE and polylysine as interfacial layers on the performance of air-processed organic solar cells under both indoor and 1 sun conditions

Hamed Javanbakht Lomeri

Giuseppina Polino

Suresh Kumar Podapangi

et al.

Abstract: Organic solar cells (OSCs) are showing great potential to be employed in indoor and outdoor applications. The utilization of portable electronics, internet of things (IoT), and sensors for wearable and...

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2024

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Cited by 5 publications

References 43 publications

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Integration of a Paper‐Based Supercapacitor and Flexible Perovskite Mini‐Module: Toward Self‐Powered Portable and Wearable Electronics

Lomeri,

Patra,

Polino

et al. 2024

Adv Funct Materials

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An all‐flexible self‐powering unit, combining a flexible perovskite solar mini‐module for energy conversion and ultra‐flexible screen‐printed interdigitated carbon supercapacitors on paper for energy storage, is designed and developed. Through a hybrid bifurcated structure, the supercapacitors are connected in series and neatly layered on a paper substrate with the perovskite solar mini‐module strategically placed on top for seamless integration. The photosupercapacitor quickly reaches saturated voltage under various light intensities (1 sun, 1000 lx, 500 lx, and 200 lx) and displays a self‐discharge time of over 2 minutes. It delivers peak overall and storage efficiencies of 2.8% and 23%, respectively, and exhibits an extensive potential window of 3.8 V, making it a prominent choice for real time applications in electronic systems. In a nutshell, the inherent flexibility of both the solar module and the storage system, coupled with the space‐saving design, and the extensive potential window of the hybrid photosupercapacitor paves the way for implementation in portable and wearable electronics operating in indoor environments, ushering a new era of more versatile and adaptable energy solutions.

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Integration of a Paper‐Based Supercapacitor and Flexible Perovskite Mini‐Module: Toward Self‐Powered Portable and Wearable Electronics

Lomeri,

Patra,

Polino

et al. 2024

Adv Funct Materials

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Over 19% Efficient Inverted Organic Photovoltaics Featuring a Molecularly Doped Metal Oxide Electron‐Transporting Layer

Nugraha,

Ling,

Aniés

et al. 2024

Advanced Materials

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Molecular doping is commonly utilized to tune the charge transport properties of organic semiconductors. However, applying this technique to electrically dope inorganic materials like metal oxide semiconductors is challenging due to the limited availability of molecules with suitable energy levels and processing characteristics. Herein, n‐type doping of zinc oxide (ZnO) films is demonstrated using 1,3‐dimethylimidazolium‐2‐carboxylate (CO2‐DMI), a thermally activated organic n‐type dopant. Adding CO2‐DMI into the ZnO precursor solution and processing it atop a predeposited indium oxide (InOx) layer yield InOx/n‐ZnO heterojunctions with increased electron field‐effect mobility of 32.6 cm2 V−1 s−1 compared to 18.5 cm2 V−1 s−1 for the pristine InOx/ZnO bilayer. The improved electron transport originates from the ZnO's enhanced crystallinity, reduced hydroxyl concentrations, and fewer oxygen vacancy groups upon doping. Applying the optimally doped InOx/n‐ZnO heterojunctions as the electron‐transporting layers (ETLs) in organic photovoltaics (OPVs) yields cells with improved power conversion efficiency of 19.06%, up from 18.3% for devices with pristine ZnO, and 18.2% for devices featuring the undoped InOx/ZnO ETL. It is shown that the all‐around improved OPV performance originates from synergistic effects associated with CO2‐DMI doping of the thermally grown ZnO, highlighting its potential as an electronic dopant for ZnO and potentially other metal oxides.

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Photovoltaics for indoor energy harvesting

Chakraborty,

Lucarelli,

et al. 2024

Nano Energy

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Effect of PEIE and polylysine as interfacial layers on the performance of air-processed organic solar cells under both indoor and 1 sun conditions

Abstract: Organic solar cells (OSCs) are showing great potential to be employed in indoor and outdoor applications. The utilization of portable electronics, internet of things (IoT), and sensors for wearable and...

Cited by 5 publications

References 43 publications

Integration of a Paper‐Based Supercapacitor and Flexible Perovskite Mini‐Module: Toward Self‐Powered Portable and Wearable Electronics

Integration of a Paper‐Based Supercapacitor and Flexible Perovskite Mini‐Module: Toward Self‐Powered Portable and Wearable Electronics

Over 19% Efficient Inverted Organic Photovoltaics Featuring a Molecularly Doped Metal Oxide Electron‐Transporting Layer

Photovoltaics for indoor energy harvesting

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