Haiyan Chen

ORCID: 0000-0001-9950-3625
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About
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Research Areas
  • Conducting polymers and applications
  • Perovskite Materials and Applications
  • Organic Electronics and Photovoltaics
  • Advanced DC-DC Converters
  • Wireless Power Transfer Systems
  • High-Voltage Power Transmission Systems
  • Advanced battery technologies research
  • Power Systems and Technologies
  • Semiconductor materials and devices
  • Molecular Junctions and Nanostructures
  • Fuel Cells and Related Materials
  • Electrocatalysts for Energy Conversion
  • Advancements in Battery Materials
  • Metal-Organic Frameworks: Synthesis and Applications
  • Thin-Film Transistor Technologies
  • Optimal Power Flow Distribution
  • Ferroelectric and Negative Capacitance Devices
  • Energy Load and Power Forecasting
  • Energy Harvesting in Wireless Networks
  • Chalcogenide Semiconductor Thin Films
  • Electric Power System Optimization
  • MXene and MAX Phase Materials
  • Advanced Optical Network Technologies
  • Smart Grid and Power Systems
  • Multilevel Inverters and Converters

Chongqing Institute of Green and Intelligent Technology
2018-2025

University of Chinese Academy of Sciences
2017-2024

Anhui Agricultural University
2024

Ocean University of China
2005-2024

Nanchang Hangkong University
2024

Changsha University of Science and Technology
2024

Chongqing University
2019-2023

Aero Engine Corporation of China (China)
2023

China University of Mining and Technology
2020-2022

Central South University
2020-2022

A fullerene additive adjusts the miscibility between donor and acceptor for morphology optimization reduces bimolecular recombination, assisting significant improvement of fill factor efficiency.

10.1039/d0ee00714e article EN Energy & Environmental Science 2020-01-01

A selenophene substituted sematic liquid crystalline donor is developed to achieve outstanding PCEs for binary ASM-OSCs (15.8%) and thick-film (14.3%).

10.1039/d1ee01193f article EN Energy & Environmental Science 2021-01-01

Abstract Morphology is a critical factor to determine the photovoltaic performance of organic solar cells (OSCs). However, delicately fine‐tuning morphology involving only small molecules an extremely challenging task. Herein, simple, generic, and effective concentration‐induced manipulation approach demonstrated prompt both state‐of‐the‐art thin‐film BTR‐Cl:Y6 thick‐film BTR:PC 71 BM all‐small‐molecule (ASM) OSCs record level. The controlled by subtly altering prepared solution...

10.1002/aenm.202001076 article EN Advanced Energy Materials 2020-06-05

Single junction binary all-small-molecule (ASM) organic solar cells (OSCs) with power conversion efficiency (PCE) beyond 14% are achieved by using non-fullerene acceptor Y6 as the electron acceptor, but still lag behind that of polymer OSCs. Herein, an asymmetric Y6-like BTP-FCl-FCl, is designed and synthesized to match recently reported high performance small molecule donor BTR-Cl, a record 15.3% for single-junction ASM OSCs achieved. BTP-FCl-FCl features F,Cl disubstitution on same end...

10.1002/advs.202004262 article EN cc-by Advanced Science 2021-02-22

Here we introduce a σ-hole-containing volatile solid additive, 1, 4-diiodotetrafluorobenzene (A3), in PM6:Y6-based OSCs. Aside from the appropriate volatility of A3 synergetic halogen interactions between and photoactive matrix contribute to more condensed ordered molecular arrangement favorable interpenetrating donor/acceptor domains. As result, greatly accelerated charge transport process with suppressed recombination possibility is observed ultimately champion PCE value 16.5% achieved....

10.1016/j.isci.2020.100965 article EN cc-by-nc-nd iScience 2020-03-01

With the emergence of fused ring electron acceptors, power conversion efficiency organic solar cells reached 19%. In comparison with donor and acceptor materials progress, development cathode interlayers lags. As a result, charge extraction barriers, interfacial trap states, significant transport resistance may be induced due to unfavorable interlayer, limiting device performances. Herein, hybrid interlayer composed PNDIT-F3N PDIN is adopted investigate interaction between photoexcited...

10.1002/advs.202105575 article EN Advanced Science 2022-01-18

The voltage instability phenomena may occur in distribution networks. decline of stability level will restrict the increase load served by companies. Distributed generation (DG) is increasingly drawing great attention people. development DGs bring new chances to traditional power systems. connected networks are potential improve system stability. In this paper, familiar interfaces between and introduced. operation modes control characteristics typical DGs, including asynchronous generators,...

10.1109/pes.2006.1709198 article EN IEEE Power Engineering Society General Meeting, 2004. 2006-01-01

We synthesized monodisperse nanospheres of an intermetallic FeSn5 phase via a nanocrystal-conversion protocol using preformed Sn as templates. This tetragonal in P4/mcc space group, along with the defect structure Fe0.74Sn5 our nanospheres, has been resolved by synchrotron X-ray diffraction and Rietveld refinement. Importantly, FeSn5, which is not yet established Fe–Sn diagram, exhibits quasi-one dimensional crystal c-axis, thus leading to interesting anisotropic thermal expansion magnetic...

10.1021/ja202243j article EN Journal of the American Chemical Society 2011-06-17

With the continuous development of organic semiconductor materials and on-going improvement device technology, power conversion efficiencies (PCEs) solar cells (OSCs) have surpassed threshold 19%. Now, low production cost photovoltaic devices become an imperative demand for its practical application future commercialization. Herein, feasibility simplified synthesis cost-effective small-molecule acceptors via end-cap isomeric engineering is demonstrated, two constitutional isomers, BTP-m-4Cl...

10.1002/advs.202207678 article EN cc-by Advanced Science 2023-05-12

Although great achievements have been made in realizing ferroelectricity HfO<sub>2</sub>-based films by the ALD method, performance is strongly constrained film thickness and dopant types.

10.1039/c9tc06400a article EN Journal of Materials Chemistry C 2020-01-01

The photovoltaic performance of perovskite solar cells (PSCs) is immensely related to the film quality, defect states density, and interfacial energy‐level alignment. Herein, a self‐polymeric monomer N‐(hydroxymethyl) acrylamide (HAM) with CC, CO, –NH multifunctional groups introduced in preparation CsPbBr 3 by two‐step method regulate crystallization process band structure simultaneously passivate dual‐ionic defects. results show that HAM first undergoes pre‐polymerization CsBr precursor...

10.1002/solr.202200883 article EN Solar RRL 2022-12-08

Abstract Morphology control plays a key role for improving efficiency and stability of bulk heterojunctions (BHJ) organic solar cells (OSCs). Halogenation methoxylation are two separate ways successfully adopted in additives morphology optimization. In this work, these strategies combined together. A series halogenated methoxylated thiophenes is designed synthesized as volatile to the evolution BHJ morphology. Specifically, addition 2,5‐diiodo‐3,4‐dimethoxythiophene (MT‐I) prominently...

10.1002/smll.202410470 article EN Small 2025-01-07
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