Dawei Duan

Ionic Liquid Engineering Induced Hydrogen‐Bond Networks for Efficient Wide‐Bandgap Perovskite Photovoltaics

Dawei Duan, Fei Wang, Qiannan Li, Taomiao Wang et autres

Wide‐bandgap (WBG, ~1.67 eV) inverted perovskite solar cells (PSCs) are highly promising for tandem photovoltaics, yet their performance is still constrained by defect‐induced nonradiative recombination and uncontrolled crystallization kinetics. Herein, we introduce a multifunctional ionic liquid, N ‐butylsulfonate pyridinium hydrogensulfate (BSPH), to …

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Synergistic Molecular Modulation via Coordination and Hydrogen Bonding for Efficient Perovskite and Tandem Solar Cells

Tao Zhang, Zehang Liu, Yonggui Sun, Taomiao Wang et autres

ABSTRACT Molecular additives offer a powerful route to control crystallization kinetics and homogenize component distribution in perovskite semiconductors. However, additives that integrate Pb‐related coordination and hydrogen‐bonding functionalities within a single molecular framework to jointly regulate crystallization evolution and defect chemistry remain largely …

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An Interpenetrating Alumina–2D Perovskite Structure for Synergistic Passivation in Carbon‐Based Perovskite Solar Cells

Z. J. Ke, Zhenkun Zhu, Tonghui Guo, Dawei Duan et autres

Carbon‐based perovskite solar cells (C‐PSCs) have attracted extensive attention due to their excellent environmental stability and low cost. 2D perovskite passivation has been widely employed as an effective strategy to enhance device stability in C‐PSCs. However, this strategy often fails to simultaneously …

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Author response for "Advancing 1.84 eV Wide-Bandgap Perovskite Solar Cells via Multidentate Molecular Engineering"

Pengcheng Wang, Tao Zhang, Xiaokang Sun, Taomiao Wang et autres

Solution‐Processed Magnesium Oxide Buffer Layer for Improved Stability of CsPbI 2 Br Perovskite Solar Cells

Zhuldyz Yelzhanova, Gaukhar Nigmetova, Dana Mukasheva, Hryhorii P. Parkhomenko et autres

The application of inorganic Cs‐based perovskites in solar cells (PSCs) has gained increasing attention as a viable alternative to hybrid organic–inorganic counterparts. However, their device performance and stability remain limited by interfacial and intrinsic material instabilities. To address these challenges, a solution‐processed …

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Advancing 1.84 eV wide-bandgap perovskite solar cells via multidentate molecular engineering

Pengcheng Wang, Tao Zhang, Xiaokang Sun, Taomiao Wang et autres

symmetry and three terminal carboxyl (-COOH) groups anchored to a triazine core. The incorporation of H3TATB into the perovskite precursor slows perovskite crystallization kinetics and it preferentially coordinates with Br-rich species, effectively regulating halide distribution. The resulting H3TATB-modified films exhibit a homogeneous …

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Advances in perovskite/C 60 interface engineering for efficiency and stability in perovskite/silicon tandem solar cells

Dawei Duan, Fei Wang, Qiannan Li, Xiaokang Sun et autres

This review focuses on the progress of perovskite/C 60 interface engineering in high-efficiency and stable perovskite/silicon tandem solar cells, including their functionalities and future application directions.

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Organic field‐effect transistors: Materials design, device physics, and contact engineering for high‐performance flexible electronics

Fenglan Kuang, F. Q. Wang, Dawei Duan, Yicong Ma et autres

Abstract Organic field‐effect transistors are widely recognized as key enabling components for low‐cost, lightweight, and flexible electronic systems. Despite substantial research progress, a critical barrier to their commercialization remains the fragmented understanding between materials chemistry, device physics, and manufacturing. In contrast to …

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Advancing PTAA-based perovskite photovoltaics through ionic liquid interfacial engineering

Qiannan Li, Fei Wang, Dawei Duan, Baolei Tang et autres

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Topical 1.5% ruxolitinib cream for facial refractory segmental vitiligo: A retrospective single-center study

Hequn Huang, Dawei Duan, He Huang, Xianfa Tang et autres

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Going Beyond Surface Physics: Interface Engineering of PTAA for Efficient p‐i‐n Perovskite Photovoltaics

Qiannan Li, Fei Wang, Yongjun Li, Baolei Tang et autres

Poor wettability of poly(triarylamine) (PTAA) surfaces and insufficient control over residual PbI 2 clusters remain critical bottlenecks limiting the performance of PTAA‐based p‐i‐n perovskite solar cells (PSCs). Herein, we introduce an effective interface engineering strategy through the incorporation of the ionic liquid …

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Bidirectional functionality of a modified PCBM layer: Enhancing perovskite photovoltaics beyond single‐bandgap devices

Yonggui Sun, Qianyi Ma, Fei Wang, Xiaokang Sun et autres

Abstract Metal electrode corrosion driven by halide migration and interfacial defects remains a significant bottleneck limiting the operational stability and photovoltaic performance of perovskite solar cells (PSCs), particularly in devices with varied bandgaps. Herein, we present a multifunctional interface engineering strategy by …

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