Zwitterionic ammonium and neutral amino molecules as cathode interlayer for inverted polymer solar cells

Zhang, Wenjun; Min, Chao; Qu, Zhilin; Li, Xiaodong; Fang, Junfeng

doi:10.1016/j.orgel.2014.10.012

Cited by 13 publications

(18 citation statements)

References 51 publications

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“…Despite the successful application of NC‐SMIs in conventional OSCs, in more stable inverted OSCs, the device performance was rather inferior for uncertain reasons . For example, when using S3 in inverted PTB7:PC 71 BM devices, efficiency of only 5.77% was obtained, which was much lower than that in conventional devices (≈9%). To study the reason for this phenomenon, Fang and co‐workers developed another nonconjugated SME interlayer based on ethylenediaminetetraacetic acid (EDTA) derivative (EDTA‐N, Scheme ) .…”

Section: Small Molecule Cathode Interlayermentioning

confidence: 99%

Small Molecule Interlayers in Organic Solar Cells

Zhang

Usman

2018

Advanced Energy Materials

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This review provides an up‐to‐date review about the small molecule interlayers (SMIs) in organic solar cells (OSCs). Compared to polymer interlayers, SMIs exhibit intrinsic advantages such as easy synthesis and purification, monodispersity, well‐defined chemical structure, and high batch‐to‐batch reproducibility. Recently, various SMIs have been reported with landmark efficiencies of over 10% in both conventional and inverted OSCs, exhibiting promising potential in commercial application. In this review, the authors summarize the progress of SMIs from a device fabrication point of view, paying particular attention to the material categories, molecular design, preparation process, and applicable device structure. In addition, the working mechanisms of different SMIs are also discussed, including the structure–property relationships and the corresponding impact on device performance. Finally, a brief outlook is provided that includes opportunities and challenges in this emerging area.

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Section: Small Molecule Cathode Interlayermentioning

confidence: 99%

Small Molecule Interlayers in Organic Solar Cells

Zhang

Usman

2018

Advanced Energy Materials

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“…Alternatively, organic polymeric/small molecular interlayer materials have also attracted great attention for I-PSCs, mainly due to their solution processability and excellent ITO modification properties. [26][27][28][29][30] Especially, amine-functional interface materials always have excellent interface modification. For example, solutionprocessed polyfluorene (PFN) yielded a maximum PCE of 9.2% in an inverted device.…”

mentioning

confidence: 99%

Neutral amine based alcohol-soluble interface materials for inverted polymer solar cells: realizing high performance and overcoming solvent erosion

Zhang

et al. 2015

Chem. Commun.

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“…A series of zwitterionic ammonium and neutral amino organic molecules are introduced into inverted PSCs as cathode interlayer and showed power conversion efficiency (PCE) as high as 8.07% was demonstrated by Zhang et al [25]. When compared to the devices without interlayer, all the devices exhibit significant improvements of the device parameters by reducing the work function of indium tin oxide (ITO) cathode.…”

Section: Polymer Based Electrodesmentioning

confidence: 99%

Development of TiO2 Nanomaterials and Dyes Selection (using DFT) for DSSC Applications –A Stepwise Review

Anbarasan¹,

Priyadharsini²,

Sathiyapriya³

et al. 2019

IJASE

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Dye-sensitized solar cell (DSSC) or Graetzel cell is a less expensive solar cell belonging to the group of thin film solar cells. The advantages of DSSCs are mainly due to low cost production, low energy payback time, flexibility, performance at diffuse light and multicolor options. The present review gives a detailed summary and evaluation of the DSSCs. The role of TiO2 in the fabrication process as a photoanode to improve the high performance of DSSCs also discussed in detail. Structural modifications during the fabrication of the device are discussed along with the factors affecting to improve the efficiency of the DSSCs. Wide ranges of dyes were identified using Density Functional Theory (DFT) for HOMO-LUMO calculations. On the other hand, Doping plays a major role on the band structure and trap states of TiO2, which in turn affect the important properties such as conduction band energy, charge transport, recombination and collection. High-throughput methods may also be employed to achieve a rough prediction on the suitability of dopants for the specific synthesis methods. It was found that nearly every employed photoanode can be used to increase the device performance, indicating that the improvement in efficiency is not so much caused by the dopant itself. The current available knowledge on TiO2 as a Photoanodic material provides remarkable light harvesting efficiency in connection with perovskite solar cells and DSSCs.

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Zwitterionic ammonium and neutral amino molecules as cathode interlayer for inverted polymer solar cells

Cited by 13 publications

References 51 publications

Small Molecule Interlayers in Organic Solar Cells

Small Molecule Interlayers in Organic Solar Cells

Neutral amine based alcohol-soluble interface materials for inverted polymer solar cells: realizing high performance and overcoming solvent erosion

Development of TiO2 Nanomaterials and Dyes Selection (using DFT) for DSSC Applications –A Stepwise Review

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