Simultaneously Modifying Hole Transport Material and Perovskite via a Crown Ether-Based Semiconductor Toward Efficient and Stable Perovskite Solar Cells

Article Materials Science, Multidisciplinary

Unravel the Charge-Carrier Dynamics in Simple Dimethyl Oxalate-Treated Perovskite Solar Cells with Efficiency Exceeding 22%

Rongjun Zhao et al.

Summary: This study designed a simple additive that can effectively improve the carrier transfer and eliminate nonradiative recombination in perovskite solar cells (PSCs), resulting in significantly higher power conversion efficiency.

ENERGY & ENVIRONMENTAL MATERIALS (2023)

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Review Chemistry, Multidisciplinary

Future Research Directions in Perovskite Solar Cells: Exquisite Photon Management and Thermodynamic Phase Stability

Hui-Seon Kim et al.

Summary: As the power conversion efficiency (PCE) of perovskite solar cells (PSCs) reaches a high of 25.7% in 2022, there is a curiosity about the achievable limit and the underlying fundamentals. The long-term stability of PSCs under operating conditions or damp heat tests has been reported to be over 1000 hours. This raises the question of whether the phase stability issue of perovskite crystals has been completely resolved or if it is deceiving by slowing the kinetics.

ADVANCED MATERIALS (2023)

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Article Nanoscience & Nanotechnology

Perovskite Solar Cells Employing a PbSO4(PbO)4 Quantum Dot-Doped Spiro-OMeTAD Hole Transport Layer with an Efficiency over 22%

Jihong Zheng et al.

Summary: In this study, inorganic salt PbSO4(PbO)(4) quantum dots (QDs) were incorporated into spiro-OMeTAD as the hole transport layer (HTL) for the first time, overcoming the limitations of spiro-OMeTAD and improving the efficiency and stability of perovskite solar cells.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Nanoscience & Nanotechnology

The Influence of CsBr on Crystal Orientation and Optoelectronic Properties of MAPbI3-Based Solar Cells

Yuqin Zou et al.

Summary: This study proposes a simple method to reveal the effect of lattice plane orientation distribution on the charge carrier kinetics by constructing CsBr-doped mixed cation perovskite phases. The results demonstrate that CsBr compositional engineering can significantly affect the perovskite crystal structure and facilitate the transport of photogenerated charge carriers in solar cells.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Engineering, Environmental

Li-TFSI endohedral Metal-Organic frameworks in stable perovskite solar cells for Anti-Deliquescent and restricting ion migration

Jiaqi Wang et al.

Summary: A novel dopant Li-TFSI@NH2-MIL-101 was introduced to reduce the amount of Li salt and improve device stability by inhibiting ion migration at the perovskite/hole transport layer interface. This approach achieved an enhanced stability for 10-fold that of conventional devices at the preliminary stage, with impressive property stability retaining over 85% of the optimal PCE after 3600 hours of storage in ambient environment.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Multidisciplinary Sciences

Centimetre-scale perovskite solar cells with fill factors of more than 86 per cent

Jun Peng et al.

Summary: Perovskite solar cells are at the forefront of emerging photovoltaic technologies due to their rapid development in efficiency and stability. This study introduces a reverse-doping process to fabricate nitrogen-doped titanium oxide electron transport layers, which significantly improves the charge transport performance and fill factor of the cells.

NATURE (2022)

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Article Chemistry, Multidisciplinary

Crowning Lithium Ions in Hole-Transport Layer toward Stable Perovskite Solar Cells

Ying Shen et al.

Summary: State-of-the-art perovskite solar cells (PSCs) exhibit comparable power conversion efficiency (PCE) to silicon photovoltaic devices, but their stability remains a major obstacle to widespread application. A novel phase-transfer-catalyzed LiTFSI doping method has been developed to address stability issues and improve performance. Experimental and theoretical studies show that the interaction between Li+ ions and 12-crown-4 improves stability by reducing the generation of hygroscopic lithium oxides and mitigating Li+ ion migration.

ADVANCED MATERIALS (2022)

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Article Engineering, Environmental

Design of multifunctional near-infrared organic heterojunction and double hole transport layer to improve efficiency and stability of perovskite solar cells

Zhichong Shi et al.

Summary: This study presents a method to improve the photoelectric conversion efficiency of lead organic-inorganic hybrid perovskite solar cells (PSCs) by using organic heterojunctions and buffer layer design. By blending a narrow band gap acceptor molecule and a wide band gap donor molecule, a multifunctional organic heterojunction active layer is formed. Single-walled carbon nanotubes are introduced as a buffer layer to avoid losses in voltage and fill factor caused by the compromised hole transport layer. The organic heterojunctions provide additional spectrum response to near-infrared light, reduce defect density on the perovskite surface and grain boundary, and promote hole extraction from perovskite to hole transport layers through cascade energy levels. The stability of PSCs is greatly enhanced by isolating natural degradation through the introduction of organic heterojunctions and buffer layer design.

CHEMICAL ENGINEERING JOURNAL (2022)

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Review Chemistry, Multidisciplinary

Ion migration in hybrid perovskites: Classification, identification, and manipulation

Xin Yan et al.

Summary: This paper reviews the recent progress and challenges in ion migration in hybrid perovskites, covering topics such as the source and impact of ion migration, characterization techniques, and strategies for controlling ion migration.

NANO TODAY (2022)

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Review Chemistry, Multidisciplinary

Organic Hole-Transport Layers for Efficient, Stable, and Scalable Inverted Perovskite Solar Cells

Yiguo Yao et al.

Summary: This review systematically summarizes recent progress in using organic hole-transporting layers (HTLs) in inverted p-i-n perovskite solar cells (PSCs), including conductive polymers, small molecules, and self-assembled monolayers. The molecular structure, hole-transport properties, energy levels, and relevant device properties and performances of organic HTLs are analyzed. Design principles and future outlook for highly efficient organic HTLs in inverted PSCs are proposed, aiming to inspire further innovative development of novel organic HTLs for more efficient, stable, and scalable inverted PSCs.

ADVANCED MATERIALS (2022)

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Article Chemistry, Physical

Ionic liquid dopant for hole transporting layer towards efficient LiTFSI-free perovskite solar cells

Hao Zhu et al.

Summary: In this study, the hydrophobic ionic liquid BMPIPTFSI was used to replace the traditional Li-TFSI, which successfully improved the hole mobility and conductivity of perovskite solar cells, as well as enhanced their moisture resistance. This method effectively increased the conversion efficiency of the solar cells and exhibited good stability under humid conditions.

CHEMICAL PHYSICS LETTERS (2022)

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Review Chemistry, Physical

Perovskite solar cells for building integrated photovoltaics-glazing applications

Jueming Bing et al.

Summary: This paper reviews the research and development of perovskite solar cells for window applications, highlighting their advantages in terms of transparency control and color control. It is found that the relationship between visible transparency and power conversion efficiency is not strictly linear, and it is theoretically possible to achieve respectable power conversion efficiency with high visible transparency. Perovskite cells also exhibit higher power conversion efficiencies under low-intensity and diffuse light, making them promising for vertical facades.

JOULE (2022)

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Article Chemistry, Physical

Radical doped hole transporting material for high-efficiency and thermostable perovskite solar cells

Yuxi Zhang et al.

Summary: This study reports a new doping strategy for a wide range of organic semiconductors, which utilizes free radicals to oxidize the semiconductors and enhance the efficiency and stability of the solar cells.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

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Article Nanoscience & Nanotechnology

Perovskite Solar Cells Employing a PbSO4(PbO)(4) Quantum Dot-Doped Spiro-OMeTAD Hole Transport Layer with an Efficiency over 22%

Jihong Zheng et al.

Summary: Incorporating PbSO4(PbO)(4) quantum dots into spiro-OMeTAD as the hole transport layer can effectively improve the long-term conductivity and moisture stability of high-efficiency perovskite solar cells, while also enhancing the power conversion efficiency.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Nanoscience & Nanotechnology

New Insight into the Lewis Basic Sites in Metal-Organic Framework-Doped Hole Transport Materials for Efficient and Stable Perovskite Solar Cells

Jiaqi Wang et al.

Summary: By doping Spiro-OMeTAD with Zn-CBOB, the conductivity of the hole transport material is improved and the surface traps of the perovskite film are passivated. This leads to enhanced performance and stability of PSCs, with a remarkable power conversion efficiency of 20.64% achieved.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Review Chemistry, Multidisciplinary

Perovskite Solar Cells for Space Applications: Progress and Challenges

Yongguang Tu et al.

Summary: Metal halide perovskites have versatile optoelectronic properties that make them promising candidates for next-generation space photovoltaic technology, despite being in the early stages of research compared to other practical space photovoltaics. The review highlights recent progress in perovskite solar cells for space applications, focusing on performance evolution and mechanism exploration under extreme space environments.

ADVANCED MATERIALS (2021)

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Article Nanoscience & Nanotechnology

Hydrophobic Fluorinated Conjugated Polymer as a Multifunctional Interlayer for High-Performance Perovskite Solar Cells

Yahong Li et al.

Summary: The introduction of a new conjugated polymer at the perovskite/HTL interface has been shown to enhance the performance of perovskite solar cells. The polymer combines multiple functions to modify the perovskite film, improve charge transport, and prevent the penetration of harmful substances.

ACS PHOTONICS (2021)

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Article Electrochemistry

Spiro-OMeTAD doped with cumene hydroperoxide for perovskite solar cells

Qi Chen et al.

Summary: Cumene hydroperoxide is introduced as an accelerator for the oxidation of spiro-OMeTAD in perovskite solar cells, leading to improved carrier mobility, decreased trap-state density, and optimized energy matching with the perovskite layer. The modified device exhibits enhanced conductivity, improved interface morphology, and a higher power conversion efficiency compared to the undoped device.

ELECTROCHEMISTRY COMMUNICATIONS (2021)

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Article Chemistry, Physical

Understanding the Effects of Fluorine Substitution in Lithium Salt on Photovoltaic Properties and Stability of Perovskite Solar Cells

Tai Wu et al.

Summary: The study demonstrates that using the more water-resistant Li-PFSI instead of Li-TFSI can significantly improve the efficiency and stability of PSCs. Furthermore, higher fluorine substitution can enhance charge-carrier transfer and photovoltaic performance in PSCs.

ACS ENERGY LETTERS (2021)

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Article Nanoscience & Nanotechnology

Tailoring of a Phenothiazine Core for Electrical Conductivity and Thermal Stability: Hole-Selective Layers in Perovskite Solar Cells

Peng Huang et al.

Summary: The study focused on the design and development of two phenothiazine-based hole transport materials, with PTODAnCBZ showing superior optoelectrical properties and thermal stability. Solar cells fabricated with PTODAnCBZ demonstrated better performance and improved stability under various stress conditions such as moisture, light, and heat.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Materials Science, Multidisciplinary

A novel dopant for spiro-OMeTAD towards efficient and stable perovskite solar cells

Zhipeng Lin et al.

Summary: The study explores a new strategy for improving the efficiency and stability of perovskite solar cells (PSCs) by using a non-halogen solvent-prepared spiro-OMeTAD solution with a new p-type dopant. The introduction of potassium ions into perovskite surface passivates interfacial defects, leading to a hysteresis-free champion PSC with significantly improved stability against illumination and ambient conditions.

SCIENCE CHINA-MATERIALS (2021)

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Article Chemistry, Physical

Interfacial Molecular Doping and Energy Level Alignment Regulation for Perovskite Solar Cells with Efficiency Exceeding 23%

Chuansu Yang et al.

Summary: This study demonstrates an effective interfacial molecular doping strategy and energy level regulation approach to improve the performance of perovskite solar cells. By utilizing carbazole-based HTMs CZ-As and CZ-Py, the PSCs show impressive power conversion efficiency of up to 23.5% and good long-term stability.

ACS ENERGY LETTERS (2021)

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Review Chemistry, Multidisciplinary

Solution-processed perovskite thin-films: the journey from lab- to large-scale solar cells

Zahra Saki et al.

Summary: This article discusses the latest developments in perovskite solar cells (PSCs) and focuses on the challenges of achieving high-efficiency PSCs. The key factors in preparing perovskite thin films and large-scale production techniques are explored, with opportunities for commercialization highlighted.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Review Chemistry, Physical

The crucial roles of the configurations and electronic properties of organic hole-transporting molecules to the photovoltaic performance of perovskite solar cells

Weidong Ling et al.

Summary: This review discusses the structure-property relationship of hole-transporting materials (HTMs) in perovskite solar cells (PSCs), focusing on molecular configuration, electron properties, and their synergetic effects. It provides useful guidance for HTM design and PSC development.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Nanoscience & Nanotechnology