Jianhua Han

ORCID: 0000-0003-3811-9413
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About
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Research Areas
  • Advanced Photocatalysis Techniques
  • Quantum Dots Synthesis And Properties
  • Perovskite Materials and Applications
  • Copper-based nanomaterials and applications
  • Chalcogenide Semiconductor Thin Films
  • Conducting polymers and applications
  • Surface Modification and Superhydrophobicity
  • TiO2 Photocatalysis and Solar Cells
  • Advanced Sensor and Energy Harvesting Materials
  • Gas Sensing Nanomaterials and Sensors
  • ZnO doping and properties
  • Organic Electronics and Photovoltaics
  • Advanced battery technologies research
  • Nanomaterials for catalytic reactions
  • Adhesion, Friction, and Surface Interactions
  • Organic Light-Emitting Diodes Research
  • Transition Metal Oxide Nanomaterials
  • Solid-state spectroscopy and crystallography
  • Anodic Oxide Films and Nanostructures
  • High-Temperature Coating Behaviors
  • Fluid Dynamics and Thin Films
  • Recycling and Waste Management Techniques
  • Advancements in Solid Oxide Fuel Cells
  • Ferroelectric and Negative Capacitance Devices
  • Carbon and Quantum Dots Applications

Civil Aviation University of China
2020-2025

University of Bergen
2024

Tsinghua University
2017-2020

State Key Laboratory of New Ceramics and Fine Processing
2017-2019

Tianjin Chengjian University
2012-2015

Yangzhou University
2015

Abstract In this study, a facile and effective approach to synthesize high‐quality perovskite‐quantum dots (QDs) hybrid film is demonstrated, which dramatically improves the photovoltaic performance of perovskite solar cell (PSC). Adding PbS QDs into CH 3 NH PbI (MAPbI ) precursor form QD‐in‐perovskite structure found be beneficial for crystallization perovskite, revealed by enlarged grain size, reduced fragmentized grains, enhanced characteristic peak intensity, large percentage (220) plane...

10.1002/smll.201801016 article EN Small 2018-07-04

Critical roles of potassium in charge-carrier balance and diffusion induced defect passivation for highly efficient inverted PSCs are revealed.

10.1039/c8ta11782a article EN Journal of Materials Chemistry A 2019-01-01

The combination of perovskite solar cells and quantum dot has significant potential due to the complementary nature two constituent materials. In this study, (SCs) with a hybrid CH 3 NH PbI /SnS dots (QDs) absorber layer are fabricated by facile universal in situ crystallization method, enabling easy embedding QDs layer. Compared SCs based on , using films as achieves 25% enhancement efficiency, giving rise an efficiency 16.8%. performance improvement can be attributed improved crystallinity...

10.1002/smll.201700953 article EN Small 2017-07-10

Hierarchical TiO 2 /ln S 3 /AgInS trilaminar core–shell branched nanorod arrays (T‐CS BNRs) have been fabricated directly on conducting glass substrates (FTO) via a facile, versatile and low‐cost hydrothermal successive ionic layer adsorption reaction (SILAR) for photoelectrochemical (PEC) water splitting. On the basis of optimal thickness AgInS shell, such T‐CS BNRs exhibit higher photocatalytic activity, photocurrent density efficiency hydrogen generation are up to 22.13 mA·cm −2 14.83%,...

10.1002/smll.201400622 article EN Small 2014-04-04

Low-temperature processed GQDs and SnO<sub>2</sub> nanoparticles composites (G@SnO<sub>2</sub>) have been prepared through a facile synthetic path. Facilitated electron transfer suppressed interfacial charge recombination enable flexible perovskite solar cells with superb efficiency excellent durability.

10.1039/c8ta10168j article EN Journal of Materials Chemistry A 2018-12-19

Inverted perovskite solar cells (PSCs) have been becoming more and attractive, owing to their easy-fabrication suppressed hysteresis, while the ion diffusion between metallic electrode layer limit long-term stability of devices. In this work, we employed a novel polyethylenimine (PEI) modified cross-stacked superaligned carbon nanotube (CSCNT) film in inverted planar PSCs configurated FTO/NiO x/methylammonium lead tri-iodide (MAPbI3)/6, 6-phenyl C61-butyric acid methyl ester...

10.1021/acsami.8b10253 article EN ACS Applied Materials & Interfaces 2018-08-20

A 2D/3D heterostructure was formed based on inorganic CsPbI<sub>2</sub>Br perovskite, contributing to a high efficiency device with enhanced stability.

10.1039/c9ta08564e article EN Journal of Materials Chemistry A 2019-01-01

Synergistic effects of S-vacancies and built-in electric field is performed for highly efficient carrier separation transport.

10.1039/d0se01515f article EN Sustainable Energy & Fuels 2020-11-23

Using hydrogen as an energy source has gained broad interest because of its eco-friendly, renewable, high density, and sustainable nature. It is important to note that generation by the photoelectrochemical water splitting (PEC-WS) system demonstrated efficient pathway address future environmental issues. Playing a critical role in typical PEC-WS system, transitional metal oxides (such ZnO, TiO2, SnO2, etc.) were usually applied photoanodes view their excellent electron mobility, strong...

10.1021/acsaem.0c02985 article EN ACS Applied Energy Materials 2021-01-12

Abstract Nanomaterials such as quantum dots and 2D materials have been widely used to improve the performance of perovskite solar cells due their favorable optical properties, conductivity, stability. Nevertheless, interfacial crystal structures between perovskites nanomaterials always ignored while large mismatches can result in a significant number defects within cells. In this work, cubic PbS nanosheets with (200) preferred planes are synthesized through anisotropy growth. Based on...

10.1002/adfm.202304140 article EN Advanced Functional Materials 2023-05-28

Superhydrophobic coatings, known for their water‐repelling properties, play an important role in corrosion resistance and self‐cleaning applications. This study addresses the pressing need eco‐friendly durable fabrication methods metal surfaces, particularly Al alloys, recognized inherent low mechanical properties. The innovative electroplating technique successfully fabricates superhydrophobic coatings on alloy incorporating a high‐hardness Ni–Cr alloys layer low‐surface‐energy stearic acid...

10.1002/adem.202302105 article EN Advanced Engineering Materials 2024-02-05

Abstract The wettability of precursor solution on substrates is the critical factor for fabricating quality film. In this work, superwetting nanofluids (NFs) non‐stoichiometric nickel oxide (NiO x ) nanocrystals (NCs)‐CsBr are first utilized to fabricate NiO ‐CsPbBr 3 hybrid film with gradient‐distributed NCs in upper part constructing hole transport ladder carbon‐based perovskite solar cells (C‐PSCs). As anticipated, crystalline properties (improved grain diameters and reduced impurity...

10.1002/smtd.202400283 article EN Small Methods 2024-05-20

Highly ordered AgInS2-modified ZnO nanoarrays were fabricated via a low-cost hydrothermal chemical method, and their application as all-solid-state solar cells was also tested. A sensitizer buffer layer developed around the surface of nanotubes in preparation process, this method is easily be manipulated to produce uniform structure. In structure, served direct electron transport path, ZnS layer, ternary AgInS2 absorber outer shell. The novel hybrid (ITO/ZnO/ZnS/AgInS2/P3HT/Pt) showed...

10.1021/am5047813 article EN ACS Applied Materials & Interfaces 2014-09-24

A zinc porphyrin dye (YD2-<italic>o</italic>-C8) was incorporated into perovskite films <italic>via</italic> a simple anti-solvent dripping method. The synergistic effect of charge separation and defect passivation enables solar cells with enhanced efficiency stability.

10.1039/c9ta09369a article EN Journal of Materials Chemistry A 2019-01-01

Highly efficient and visible-light-responsive p–n junction CuO/TiO<sub>2</sub>-zeolite heterogeneous nanostructures had been successfully synthesized by a standard impregnation method.

10.1039/c5ra07597a article EN RSC Advances 2015-01-01

Efficient hybrid solid-state solar cells based on novel trilaminar ZnO/ZnS/Sb2S3 nanotube arrays (NTs) and poly(3-hexylthiophene) (P3HT) are fabricated by using a buffer layer ZnS surface modification sensitizer (Sb2S3). Vertically aligned were directly grown an indium-doped tin oxide (ITO) substrate via low-cost hydrothermal chemical conversion method ion exchange, which is easy to be manipulated can form uniform structures without destroying the original morphology. The ZnO/ZnS/Sb2S3/P3HT...

10.1039/c4ra02554g article EN RSC Advances 2014-01-01
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