Thermally cross-linkable fluorene-based hole transporting materials: synthesis, characterization, and application in perovskite solar cells

Article Chemistry, Multidisciplinary

Thermally Crosslinked Hole Conductor Enables Stable Inverted Perovskite Solar Cells with 23.9% Efficiency

Cuiping Zhang et al.

Summary: The development of a new polymer hole conductor through cross-linking technology demonstrates its potential in achieving high-performance and stable inverted perovskite solar cells.

ADVANCED MATERIALS (2023)

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Article Chemistry, Applied

Bi- or multi-functional charge transporting materials for perovskite solar cells

Weibo Yan et al.

Summary: Charge transporting materials play a vital role in perovskite solar cells by improving efficiency and stability, as well as regulating the formation of perovskite crystals and electrode properties. Summarizing and analyzing the characteristics of these materials can provide references for associated research.

DYES AND PIGMENTS (2022)

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Review Chemistry, Applied

Review of current progress in hole-transporting materials for perovskite solar cells

Prerna Mahajan et al.

Summary: Recent advancements in perovskites' application as a solar energy harvester have been astonishing. However, high stability and affordability still pose significant challenges.

JOURNAL OF ENERGY CHEMISTRY (2022)

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Review Chemistry, Multidisciplinary

The high open-circuit voltage of perovskite solar cells: a review

Zhanglin Guo et al.

Summary: Perovskite solar cells have achieved significant progress in recent years, particularly in terms of their high open-circuit voltage. Improving the open-circuit voltage is critical for enhancing device efficiency. This review paper provides an overview of the recent developments in the open-circuit voltage of perovskite solar cells, discussing strategies to reduce undesirable recombination in the perovskite film and at the interfaces.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Cross-linkable carbazole-based hole transporting materials for perovskite solar cells

Sarune Daskeviciute-Geguziene et al.

Summary: In this study, Carbazole-based molecules V1205 and V1206 were synthesized and utilized as hole-transporting materials in inverted perovskite solar cells. The newly developed HTMs were thermally polymerized to form films resistant to organic solvents. A PSC with V1205 achieved a photovoltaic conversion efficiency of 16.9% and exhibited good stability.

CHEMICAL COMMUNICATIONS (2022)

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Article Energy & Fuels

Efficient, Hysteresis-Free, and Flexible Inverted Perovskite Solar Cells Using All-Vacuum Processing

Mohammad Mahdi Tavakoli et al.

Summary: The fabrication of efficient perovskite solar cells using all-vacuum processing remains challenging, but using copper (II) phthalocyanine as the hole transporting layer can optimize the performance of inverted PSCs, improve power conversion efficiency, and accelerate processing speed.

SOLAR RRL (2021)

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Article Multidisciplinary Sciences

Perovskite solar cells with atomically coherent interlayers on SnO2 electrodes

Hanul Min et al.

Summary: By introducing an interlayer between the electron-transporting and perovskite layers in perovskite solar cells, researchers have successfully enhanced charge extraction and transport from the perovskite, leading to higher power conversion efficiency and fewer interfacial defects. The coherent interlayer allowed the fabrication of devices with a certified efficiency of 25.5%, which maintained about 90% of its initial efficiency even after continuous light exposure for 500 hours. The findings provide guidelines for designing defect-minimizing interfaces in metal halide perovskites and electron-transporting layers.

NATURE (2021)

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Article Chemistry, Physical

Adduct-based p-doping of organic semiconductors

Nobuya Sakai et al.

Summary: Adducts of dimethyl sulfoxide and hydrobromic acid can efficiently p-dope various organic semiconductors and are compatible with other counterions, showing promise for improving stability and performance parameters of organic optoelectronic devices.

NATURE MATERIALS (2021)

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Review Materials Science, Multidisciplinary

A brief review of hole transporting materials commonly used in perovskite solar cells

Song Li et al.

Summary: Perovskite solar cells (PSCs) have gained significant attention in the field of photovoltaics due to their exceptional performance, with the power conversion efficiency reaching up to 25.2%. This review focuses on discussing various hole transporting materials (HTMs) in PSCs, emphasizing their role in improving photovoltaic performance. Different organic and inorganic HTMs are categorized and their advantages and disadvantages are demonstrated, with the aim of providing insights for the design and application of novel HTMs to further enhance PSCs performance.

RARE METALS (2021)

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Article Chemistry, Physical

Cut from the Same Cloth: Enamine-Derived Spirobifluorenes as Hole Transporters for Perovskite Solar Cells

Deimante Vaitukaityte et al.

Summary: This study introduces a new type of hole-transporting materials (HTMs) based on spirobifluorene, synthesized through simple condensation chemistry, which enables highly efficient and stable perovskite solar cells. The research on these novel HTMs provides a new approach to improving the performance of PSCs.

CHEMISTRY OF MATERIALS (2021)

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Review Chemistry, Multidisciplinary

Lessons learned from spiro-OMeTAD and PTAA in perovskite solar cells

Florine M. Rombach et al.

Summary: Organic semiconductors are crucial in thin-film electronic devices, especially as hole transport layers (HTLs) in perovskite solar cells (PSCs). Spiro-OMeTAD and PTAA have been the leading materials for high efficiency HTLs, with research on their properties contributing to a better understanding of their success mechanisms. This review provides key insights into the electronic and morphological properties, doping strategies, and degradation pathways of spiro-OMeTAD and PTAA, guiding the development of future HTL materials with improved stability and efficiency for PSCs.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Physical

Fluorene-based enamines as low-cost and dopant-free hole transporting materials for high performance and stable perovskite solar cells

Sarune Daskeviciute et al.

Summary: Research on perovskite solar cells demonstrates that hole transporting materials prepared via simple chemistry methods can achieve high performance, while also offering lower cost and better stability compared to materials obtained through expensive cross-coupling techniques.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Multidisciplinary