Photoelectrochemical and first-principles investigation on perylene dye-based perovskite/TiO2 photoelectrode

Zhou, Yinguo; Zhang, Lei

doi:10.1016/j.apsusc.2020.148792

Cited by 7 publications

(5 citation statements)

References 36 publications

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“…In addition, the presence of the Fe 3 O 4 layer introduces a semimetallic feature revealed by the negligible band gap, which represents enhanced charge carrier conductance at the interface at a cost of stronger interfacial charge-carrier recombination. [61,62] The specific orbitals such as Fe-3d, O-2p, and I-2p demonstrate that the Fe-3d orbitals contribute to the unoccupied states near the Fermi level, while the I-2p orbitals from the halide perovskite layer mainly contribute to the occupied states near the Fermi level (Figure S10, Supporting Information). In addition, the 2p orbitals of the oxygen also contribute to the occupied orbitals near the Fermi level.…”

Section: Resultsmentioning

confidence: 99%

Fast Exploring Literature by Language Machine Learning for Perovskite Solar Cell Materials Design

Zhang,

Huang,

Yan

et al. 2024

Advanced Intelligent Systems

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Making computers automatically extract latent scientific knowledge from literature is highly desired for future materials and chemical research in the artificial intelligence era. Herein, the natural language processing (NLP)‐based machine learning technique to build language models and automatically extract hidden information regarding perovskite solar cell (PSC) materials from 29 060 publications is employed. The concept that there are light‐absorbing materials, electron‐transporting materials, and hole‐transporting materials in PSCs is successfully learned by the NLP‐based machine learning model without a time‐consuming human expert training process. The NLP model highlights a hole‐transporting material that receives insufficient attention in the literature, which is then elaborated via density functional theory calculations to provide an atomistic view of the perovskite/hole‐transporting layer heterostructures and their optoelectronic properties. Finally, the above results are confirmed by device experiments. The present study demonstrates the viability of NLP as a universal machine learning tool to extract useful information from existing publications.

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Section: Resultsmentioning

confidence: 99%

Fast Exploring Literature by Language Machine Learning for Perovskite Solar Cell Materials Design

Zhang,

Huang,

Yan

et al. 2024

Advanced Intelligent Systems

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“…Moreover, the other way is to prepare the calixarene film first and then drip the dye on the surface, thus forming the dye on the outside. 2) the TiO2 film using bare PTCDA sensitized, (3) the halide perovskite layer film, (4) and the combination film of perovskite, dye and TiO2 [5].…”

Section: 4910-tetracarboxylic Dianhydride Ptcdamentioning

confidence: 99%

“…Care should be taken to close it with a sealing film. Otherwise, there is a risk of decomposition [5].…”

Section: Introductionmentioning

confidence: 99%

“…Figure 2. Principle demonstration of the two ways of preparing a calcium titanite cell combined with dye, 1 -4 represents (1) the FTO's bare TiO2 film and the perylene dye molecules (red dots), (2) the TiO2 film using bare PTCDA sensitized, (3) the halide perovskite layer film, (4) and the combination film of perovskite, dye and TiO2[5].When exposed to visible light, the dye/calcite systems 1 to 4 dissolved in water yield a range of photocurrent values (Figure3a), with the dye-sensitized calcium titanite system exhibiting the highest photovoltaic performance. For instance, compared to 3, 4 generates twice as much water-based photocurrent.…”

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confidence: 99%

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Methods for improving the stability of perovskite materials and their conversion efficiency

Li,

Yin,

Zong

2023

ACE

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he research on perovskite thin film solar cells has made great progress in recent years and is believed to be a material with enormous potential for development. However, problems like relatively poor stability, environmental unfriendliness and low large-area photoelectric conversion efficiency remain to solve. Its large-scale production is still a long way off. This study introduces the recent progress of the perovskite materials for perovskite solar cells and reviews the three ways of improving the stability and photoelectric conversion efficiency of perovskite materials for solar cells, including dye sensitization, doping and graphene oxidation. Diverse dyes for sensitization of perovskite materials are listed, and their mechanics are briefly introduced. The principles of how doping and graphene oxidation improve the stability and photoelectric conversion efficiency of perovskite materials are also described in this manuscript. Finally, based on those methods, suggestions for the future development of perovskite materials for solar cells are provided.

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“…In particular, dye molecules can be considered as special molecules with advanced optical and electronic features because of the chromophore nature, which can passivate the defects of the perovskite lm, enhance light absorption properties and promote charge transfer at the same time. 18 Several feasible additive strategies 13,[19][20][21] have been reported to enhance the performance of PSCs. However, little attention is paid to the effect of the dye interlayer on the perovskite absorber layer.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of efficient and stable perovskite solar cells in open air through adopting a dye interlayer

Feng

Song

et al. 2022

Sustainable Energy Fuels

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Photoelectrochemical and first-principles investigation on perylene dye-based perovskite/TiO2 photoelectrode

Cited by 7 publications

References 36 publications

Fast Exploring Literature by Language Machine Learning for Perovskite Solar Cell Materials Design

Fast Exploring Literature by Language Machine Learning for Perovskite Solar Cell Materials Design

Methods for improving the stability of perovskite materials and their conversion efficiency

Fabrication of efficient and stable perovskite solar cells in open air through adopting a dye interlayer

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