Perylene diimides: a thickness-insensitive cathode interlayer for high performance polymer solar cells

Zhang, Zhiguo; Qi, Bo; Jin, Zhiwen; Chi, Dan; Qi, Zhihua; Li, Yongfang; Wang, Jizheng

doi:10.1039/c4ee00022f

Cited by 692 publications

(618 citation statements)

References 60 publications

(24 reference statements)

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“…[16] Wentao Deng is currently a research assistant in Zhang et al used two perylene diimide derivatives with good conductivity to tune the work function of the electrodes in polymer solar cells. [40] Perylene diimide interlayers can effectively reduce the work function of metal electrodes as can be seen in Table 1. Devices with PDINO (amino N-oxide functionalized perylene diimide) showed an efficiency of 8.24% which was higher than observed for devices without the interlayer (4.43%).…”

Section: Work Function Adjustmentmentioning

confidence: 99%

“…In some cases the small molecules act to bind the two layers together, thereby reducing the Al [40] 4.3 3.5…”

Section: Other Rolesmentioning

confidence: 99%

“…Such molecules can be beneficial to charge collection when used to modify the charge transporting layer, the transparent conducting oxide or the metal electrodes (shown in Scheme 3) and can expand the choices of metal contacts that can be employed in solar cells. [18,40] When used to modify the anode of the device, molecules with a dipole moment that points away from the electrode bends the vacuum level and causes an effective reduction in the work function (see Scheme 3a). An Ohmic contact is then expected to form between the electrode and the active layer and better electron extraction can be obtained.…”

Section: Work Function Adjustmentmentioning

confidence: 99%

“…Those most frequently used include perylene and its derivatives, [28,40,42,70,71] benzoic acid and its derivatives, [29,72] aminofunctionalized small molecules, [32,73] silanes, [31] dyes, [74] and fullerene derivatives. [75] As listed in Table 2, different molecules are employed depending on the aim of the research.…”

Section: Classes Of Small Molecules Used In Interlayersmentioning

confidence: 99%

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Molecular Interlayers in Hybrid Perovskite Solar Cells

Deng

Liang

Kubiak

et al. 2017

Advanced Energy Materials

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Organic–inorganic hybrid perovskite solar cells (PSC) are promising third‐generation solar cells. They exhibit good power conversion efficiencies and in principle they can be fabricated with lower energy consumption than many more established technologies. To improve the efficiency and long‐term stability of PSC, organic molecules are frequently used as “interlayers.” Interlayers are thin layers or monolayers of organic molecules that modify a specific interface in the solar cell. Here, the latest progress in the use of interlayers to optimize the performance of PSC is reviewed. Where appropriate interesting examples from the field of organic photovoltaics (OPV) are also presented as there are many similarities in the types of interlayers that are used in PSC and OPV. The review is organized into three parts. The first part focuses on why organic molecule interlayers improve the performance of the solar cells. The second section discusses commonly used molecular interlayers. In the last part, different approaches to make thin and uniform interlayers are discussed.

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Section: Work Function Adjustmentmentioning

confidence: 99%

“…In some cases the small molecules act to bind the two layers together, thereby reducing the Al [40] 4.3 3.5…”

Section: Other Rolesmentioning

confidence: 99%

Section: Work Function Adjustmentmentioning

confidence: 99%

Section: Classes Of Small Molecules Used In Interlayersmentioning

confidence: 99%

See 2 more Smart Citations

Molecular Interlayers in Hybrid Perovskite Solar Cells

Deng

Liang

Kubiak

et al. 2017

Advanced Energy Materials

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“…Recently, Wang and coworkers designed and synthesized two perylene diimide (PDI) derivative cathode IFL materials PDIN and PDINO (Figure 9), which contain amino or amino N-oxide (PDINO) terminal substituents on the imide, respectively [80]. PDIN and PDINO show high conductivities of 0.8 × 10 …”

Section: Small Moleculesmentioning

confidence: 99%

Interfacial Layer Engineering for Performance Enhancement in Polymer Solar Cells

et al. 2015

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Improving power conversion efficiency and device performance stability is the most critical challenge in polymer solar cells for fulfilling their applications in industry at large scale. Various methodologies have been developed for realizing this goal, among them interfacial layer engineering has shown great success, which can optimize the electrical contacts between active layers and electrodes and lead to enhanced charge transport and collection. Interfacial layers also show profound impacts on light absorption and optical distribution of solar irradiation in the active layer and film morphology of the subsequently deposited active layer due to the accompanied surface energy change. Interfacial layer engineering enables the use of high work function metal electrodes without sacrificing device performance, which in combination with the favored kinetic barriers against water and oxygen penetration leads to polymer solar cells with enhanced performance stability. This review provides an overview of the recent progress of different types of interfacial layer materials, including polymers, small molecules, graphene oxides, fullerene derivatives, and metal oxides. Device performance enhancement of the resulting solar cells will be elucidated and the function and operation mechanism of the interfacial layers will be discussed. OPEN ACCESSPolymers 2015, 7 334

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Interfacial Design for Efficient Organic Solar Cells

Liu

2022

Organic Solar Cells

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Perylene diimides: a thickness-insensitive cathode interlayer for high performance polymer solar cells

Cited by 692 publications

References 60 publications

Molecular Interlayers in Hybrid Perovskite Solar Cells

Molecular Interlayers in Hybrid Perovskite Solar Cells

Interfacial Layer Engineering for Performance Enhancement in Polymer Solar Cells

Interfacial Design for Efficient Organic Solar Cells

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