Wenzhu Liu

ORCID: 0000-0003-0239-9089
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About
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Research Areas
  • Silicon and Solar Cell Technologies
  • Thin-Film Transistor Technologies
  • Silicon Nanostructures and Photoluminescence
  • Perovskite Materials and Applications
  • Photovoltaic System Optimization Techniques
  • Conducting polymers and applications
  • Organic Electronics and Photovoltaics
  • Semiconductor materials and interfaces
  • solar cell performance optimization
  • Nanowire Synthesis and Applications
  • Chalcogenide Semiconductor Thin Films
  • Heavy metals in environment
  • Analytical chemistry methods development
  • Semiconductor materials and devices
  • Adsorption and biosorption for pollutant removal
  • Electric Vehicles and Infrastructure
  • Water Quality Monitoring and Analysis
  • Pluripotent Stem Cells Research
  • Chromium effects and bioremediation
  • Tissue Engineering and Regenerative Medicine
  • Recycling and utilization of industrial and municipal waste in materials production
  • Surface and Thin Film Phenomena
  • Bacterial biofilms and quorum sensing
  • Soil and Water Nutrient Dynamics
  • Mercury impact and mitigation studies

Shanghai Institute of Microsystem and Information Technology
2015-2025

Chinese Academy of Sciences
2021-2025

University of Chinese Academy of Sciences
2015-2025

Qilu Hospital of Shandong University
2024

Northeast Agricultural University
2018-2023

King Abdullah University of Science and Technology
2018-2022

Capital Normal University
2013

Abstract The performance of state‐of‐the‐art perovskite solar cells is currently limited by defect‐induced recombination at interfaces between the and electron hole transport layers. These defects, most likely undercoordinated Pb halide ions, must either be removed or passivated if cell efficiencies are to approach their theoretical limit. In this work, a universal double‐side polymer passivation introduced using ultrathin poly(methyl methacrylate) (PMMA) films. Very high‐efficiency (≈20.8%)...

10.1002/aenm.201801208 article EN Advanced Energy Materials 2018-09-14

Polymer passivation layers can improve the open-circuit voltage of perovskite solar cells when inserted at perovskite-charge transport layer interfaces. Unfortunately, many such are poor conductors, leading to a trade-off between quality (voltage) and series resistance (fill factor, FF). Here, we introduce nanopatterned electron that overcomes this by modifying spatial distribution form nanoscale localized charge pathways through an otherwise passivated interface, thereby providing both...

10.1126/science.abb8687 article EN Science 2021-01-21

Perovskite/silicon tandem solar cells are promising avenues for achieving high-performance photovoltaics with low costs. However, the highest certified efficiency of perovskite/silicon devices based on economically matured silicon heterojunction technology (SHJ) fully textured wafer is only 25.2% due to incompatibility between limitation fabrication which not compatible production-line wafer. Here, a molecular-level nanotechnology developed by designing NiOx /2PACz ([2-(9H-carbazol-9-yl)...

10.1002/adma.202206193 article EN Advanced Materials 2022-08-20

Volatile solids with symmetric π-backbone are intensively implemented on manipulating the nanomorphology for improving operability and stability of organic solar cells. However, due to isotropic stacking, announced geometry cannot modify microscopic phase separation component distribution collaboratively, which will constrain promotion exciton splitting charge collection efficiency. Inspired by superiorities asymmetric configuration, a novel process-aid solid (PAS) engineering is proposed....

10.1002/adma.202200907 article EN Advanced Materials 2022-03-22

Flexible solar cells have a lot of market potential for application in photovoltaics integrated into buildings and wearable electronics because they are lightweight, shockproof self-powered. Silicon been successfully used large power plants. However, despite the efforts made more than 50 years, there has no notable progress development flexible silicon their rigidity1-4. Here we provide strategy fabricating large-scale, foldable wafers manufacturing cells. A textured crystalline wafer always...

10.1038/s41586-023-05921-z article EN cc-by Nature 2023-05-24

Abstract Recent achievements in amorphous/crystalline silicon heterojunction (SHJ) solar cells and perovskite/SHJ tandem place hydrogenated amorphous (a-Si:H) at the forefront of photovoltaics. Due to extremely low effective doping efficiency trivalent boron tetravalent silicon, light harvesting aforementioned devices is limited by their fill factors (FFs), a direct metric charge carrier transport. It challenging but crucial develop highly conductive doped a-Si:H with minimal FF losses. Here...

10.1038/s41560-022-01018-5 article EN cc-by Nature Energy 2022-05-12

In this work, by adding a low-cost and volatile 1,3,5-tribromobenzene solid as process-aid additive, champion power conversion efficiency high 19.1% together with remarkable fill factor of 80.7% is achieved based on the state-of-the-art PM6:L8-BO system.

10.1039/d3ee01320k article EN Energy & Environmental Science 2023-01-01

The efficiency of non-halogenated organic solar cells is improved from 17.1% to 19.4% after dibenzyl ether (DBE) additive treatment. More strikingly, the thick-film devices achieved a champion 17.4%.

10.1039/d4ee00291a article EN Energy & Environmental Science 2024-01-01

Abstract The severe aggregation property of the small molecule electron‐transporting layer (ETL) not only deteriorates photovoltaic performance and operational reliability but also constrains its compatibility with large‐scale coating techniques. Herein, by applying N,N′‐Bis{3‐[3‐(Dimethylamino)propylamino]propyl}perylene‐3,4,9,10‐tetracarboxylic diimide (PDINN) (a well‐known ETL) as a demo, solvent‐induced anti‐aggregation (SIAA) strategy is proposed to cope these hurdles via mixing ethanol...

10.1002/aenm.202203009 article EN Advanced Energy Materials 2022-11-06

Transparent conductive oxide (TCO) films, known for their role as carrier transport layers in solar cells, can be adversely affected by hydrolysis products from encapsulants. In this study, we explored the morphology, optical-electrical properties, and deterioration mechanisms of In2O3-based TCO films under acetic acid stress. A reduction film thickness concentration due to acid-induced corrosion was observed. X-ray photoelectron spectroscopy inductively coupled plasma emission spectrometry...

10.1016/j.esci.2024.100241 article EN cc-by-nc-nd eScience 2024-01-20

Abstract The development of high‐performance dopant‐free silicon solar cells is severely bottlenecked by opaque electron selective contact. In this paper, high transmittance (80.5% on glass) and low work function (2.92 eV) lithium fluoride (LiF x )/MgF O y contact stack tailoring the composition MgF hybrid film reported. This structure exhibits a conductivity (2978.4 S cm −1 ) resistivity (2.0 mΩ 2 ). element profile LiF /MgF measured reaction kinetics analyzed. As proof‐of‐concept, applied...

10.1002/advs.202202400 article EN Advanced Science 2022-06-17

Abstract Silicon‐based photovoltaic (PV) modules suffer from potential‐induced degradation (PID) caused by sodium (Na) permeation, which is present in large quantities soda‐lime glass. Here, we report that Na atoms can decrease the performance of amorphous/crystalline silicon heterojunction (SHJ) solar cells without help a voltage bias. The three stages are investigated this work. First, H 2 O molecules open channels for transport transparent conductive oxide (TCO), while device remains...

10.1002/pip.3698 article EN Progress in Photovoltaics Research and Applications 2023-04-06

Designing effective carrier-selective contact is a prerequisite for high-efficiency crystalline silicon (c-Si) solar cells. Compared to doped thin films, wide-band-gap transition metal oxides (TMOs) feature low parasitic absorption, but their carrier selectivity and passivation being poor leads mediocre cell efficiency. Herein, we introduce NiOx/MoOx bilayer as an efficient hole-selective in c-Si A power conversion efficiency (PCE) of 21.31% achieved using bilayer, outperforming cells with...

10.1016/j.xcrp.2021.100684 article EN cc-by-nc-nd Cell Reports Physical Science 2021-12-01

Abstract Passivation interlayers such as Al 2 O 3 are required to improve the hole selectivity of dopant‐free passivating contact based on transition metal oxides. For interlayer provide low surface recombination in conventional silicon heterojunctions (SHJs) or tunnel oxide passivated (TOPCon) technologies, “hydrogenation” strategies effectively introduce hydrogen passivation while being compatible with oxides (TMOs) urgently sought after. In this work, an easy‐to‐implement strategy...

10.1002/adfm.202207158 article EN Advanced Functional Materials 2022-08-19

n-Type tunnel oxide passivated contact (TOPCon) solar cells are expected to dominate the global photovoltaic market in next decade, primarily owing their rapidly increasing power conversion efficiency (PCE). However, acids generated from encapsulant hydrolysis under damp-heat (DH) conditions significantly impair reliability of TOPCon cells. This study evaluated degradation behavior an accelerated test ambient acid environment. Exposure acetic for 48 h resulted average peel force decreasing...

10.1021/acsami.4c21774 article EN ACS Applied Materials & Interfaces 2025-02-07

Promoting infrared (IR) response is crucial to boost the short‐circuit current density ( J SC ) of thinner silicon heterojunction (SHJ) solar cells. Herein, tantalum‐doped tin oxide (TaTO) film not only a transparent conductive but also used as rear reflector stacked with multiple‐doped indium (IMO) promote IR quantum efficiency SHJ Stack films (IMO/TaTO) are prepared and their structural optical–electrical properties were studied. IMO/TaTO stack layer polycrystalline IMO covered by...

10.1002/solr.202400806 article EN Solar RRL 2025-02-13
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