Low-temperature in-situ preparation of ZnO electron extraction layer for efficient inverted polymer solar cells

Ye, Bo; Bai, Yiming; Zeng, Rui; Zhao, Chunyan; Zhang, Bing; Wang, Jun; Hayat, Tasawar; Alsaedi, Ahmed; Tan, Zhan’ao

doi:10.1016/j.orgel.2019.06.053

Cited by 18 publications

(11 citation statements)

References 46 publications

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“…On the other hand, the properties of the OSC device composed of the ZnO 100 10nm film were similar to those of the ZnO 250 -based one. Although a lowtemperature preparation of ZnO films from the Zn(AcAc) 2 precursor for OSCs has been reported, 35 the preparation temperature of ZnO 100 80nm (100 °C) is lower than that of the reported method (150 °C). This result suggests that an effective low-temperature sol−gel method for the preparation of the ZnO film as the electron transport layer was realized, and that similar solar cell properties can be obtained for ZnO films with similar resistance even though the densities of the ZnO films are different.…”

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confidence: 79%

Study on Properties of Low-Temperature-Prepared Zinc Oxide-Based Inverted Organic Solar Cells and Improvement of their Photodurability

Nakano

Nakagawa

Sato

et al. 2021

ACS Appl. Energy Mater.

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The power conversion efficiency (PCE) of organic solar cells (OSCs) has improved steadily thanks to aggressive research and development efforts. On the other hand, improvement of device durability of OSCs is also an important factor for the practical application of OSCs. In this work, we studied the photodurability of inverted OSCs (i-OSCs) with ZnO prepared at 100 and 250 °C (ZnO 100 and ZnO 250 ). The photodurability of the ZnO 100 -based i-OSCs is much poorer than that of ZnO 250 -based ones. This could have originated from the higher photocatalytic activity of ZnO 100 , which relates to the number of surface OH groups and adsorbed water species. To suppress the photocatalytic activity of ZnO 100 , we fabricated a self-assembled monolayer (SAM) on the surface of ZnO 100 and found that the photodurability of the surface-treated ZnO 100 -based i-OSC was improved. This result indicated that the photodurability of i-OSC can be influenced by the surface conditions of ZnO and can be improved by SAM modification.

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confidence: 79%

Study on Properties of Low-Temperature-Prepared Zinc Oxide-Based Inverted Organic Solar Cells and Improvement of their Photodurability

Nakano

Nakagawa

Sato

et al. 2021

ACS Appl. Energy Mater.

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“…J ph is dened as J ph ¼ J L -J D , where J L and J D are current densities measured under the illumination of AM 1.5G, 100 mW cm À2 , and in the dark, respectively. 42 The effective voltage V eff is dened as V eff ¼ V 0 À V appl , in which V 0 is the compensation voltage when J L ¼ J D , and V appl is the applied voltage from À8 to +3 V. 43,44 At a V eff of 3 V, the J sat s for PM6:BTP-BO-4Cl, PM6:BTP-BO-4Cl:DTTC-4ClC9, and PM6:DTTC-4ClC9 blend lms is 27.40, 27.32, and 21.73 mA cm À2 , respectively, yielding P diss s of 96.9, 99.3 and 96.9%. The higher P diss for ternary devices indicates more efficient exciton dissociation and charge extraction with the addition of DTTC-4ClC9, facilitating the improvement of the FF and J SC .…”

Section: Table 1 Summary Of Photovoltaic Parameters Of the Binary And...mentioning

confidence: 99%

Improving charge transport and reducing non-radiative energy loss via a nonacyclic carbazole-based third component for over 18% efficiency polymer solar cells

Gong

Gao

et al. 2022

J. Mater. Chem. A

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“…To date, ZnO and PEDOT:PSS are the two most widely used CTLs in ST‐OSCs. [ 163–165 ] They both exhibits excellent charge carrier transport properties, unfortunately, their optical properties are not optimal for ST‐OSCs. [ 166,167 ] For example, typically 30–40 nm‐thick ZnO layers are needed when applied as the electron transport layer, which limits the transmittance of the film.…”

Section: Strategies and Progressmentioning

confidence: 99%

Progress in Semitransparent Organic Solar Cells

2021

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Opaque and semitransparent organic solar cells (ST‐OSCs) have made tremendous progress in recent years. Efficiencies over 18% and 13% have been demonstrated for opaque ST‐OSCs, respectively. OSCs do not contain unfavorable elements such as lead, which makes them available for broader potential applications when compared with other lead‐contained thin‐film solar cells. There has also been tremendous progress in the ST‐OSCs, which makes them extremely appealing for promising emerging applications such as building‐integrated photovoltaics. Herein, a progress review in the field is presented for helping the researchers better understand ST‐OSCs and further realize their potentials. Recent strategies in ST‐OSCs based on three perspectives are summarized, including electrode engineering, active layer engineering, and device engineering. A wide range of applications where ST‐OSCs can be used is discussed and challenges for future developments of ST‐OSCs are pointed out. Finally, the outlook for promising future research directions is presented.

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Low-temperature in-situ preparation of ZnO electron extraction layer for efficient inverted polymer solar cells

Cited by 18 publications

References 46 publications

Study on Properties of Low-Temperature-Prepared Zinc Oxide-Based Inverted Organic Solar Cells and Improvement of their Photodurability

Study on Properties of Low-Temperature-Prepared Zinc Oxide-Based Inverted Organic Solar Cells and Improvement of their Photodurability

Improving charge transport and reducing non-radiative energy loss via a nonacyclic carbazole-based third component for over 18% efficiency polymer solar cells

Progress in Semitransparent Organic Solar Cells

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