A5087562834- Perovskite Materials and Applications
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Fuel Cells and Related Materials
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Organic Light-Emitting Diodes Research
- Ga2O3 and related materials
- ZnO doping and properties
- Advanced Photocatalysis Techniques
- Copper-based nanomaterials and applications
- Membrane-based Ion Separation Techniques
- TiO2 Photocatalysis and Solar Cells
- Electronic and Structural Properties of Oxides
- Advancements in Battery Materials
- Molecular Junctions and Nanostructures
- Thin-Film Transistor Technologies
- Supercapacitor Materials and Fabrication
- Nanowire Synthesis and Applications
- 2D Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- Solid-state spectroscopy and crystallography
- Antibiotic Resistance in Bacteria
Shanghai Jiao Tong University
2015-2024
Nankai University
2023-2024
Chinese Academy of Governance
2024
Sun Yat-sen University
2021
The First Affiliated Hospital, Sun Yat-sen University
2021
State Council of the People's Republic of China
2017
All-polymer solar cells (all-PSCs) exhibit excellent stability and readily tunable ink viscosity, are therefore especially suitable for printing preparation of large-scale devices. At present, the efficiency state-of-the-art all-PSCs fabricated by spin-coating method has exceeded 11%, laying foundation practical utilization printed A high power conversion (PCE) 11.76% is achieved based on PTzBI-Si:N2200 processing with 2-methyltetrahydrofuran (MTHF, an environmentally friendly solvent)...
Abstract Revealing the nanostructure of bulk‐heterojunction (BHJ) photovoltaic blends is a critical task in field organic photovoltaics. The complicated morphology, ranging from binary to ternary mixtures, shows quite varied structural details that need be fully characterized terms correlating them with device performance. nonequilibrium nature BHJ thin‐film morphology makes structure optimization difficult, and fundamental principles relate chemical structure, processing methods,...
Abstract 2D Ruddlesden–Popper perovskites (RPPs) are emerging as potential challengers to their 3D counterpart due superior stability and competitive efficiency. However, the fundamental questions on energetics of RPPs not well understood. Here, at (PEA) 2 (MA) n −1 Pb I 3 +1 /[6,6]‐phenyl‐C61‐butyric acid methyl ester (PCBM) interfaces with varying values 1, 3, 5, 40, ∞ systematically investigated. It is found that n–n junctions form RPP ( = 40), instead p–n in pure scenarios 1 ∞). The...
2D perovskite solar cells with high stability and efficiency have attracted significant attention. A systematical static dynamic structure investigation is carried out to show the details of morphology evolution. dual additive approach used, where synergy between an alkali metal cation a polar solvent leads high-quality films sandwich-type structures vertical phase segregation. Such novel can induce slab growth reduce internal surface defects, resulting in device 16.48% enhanced continuous...
Perovskite solar cells are a highly competitive candidate for next‐generation photovoltaic technology. Defects in the perovskite grain boundaries and on film surfaces however have significant impacts both device efficiency environmental stability. Herein, strategy using organic dyes as additives to passivate defect states produce more n‐type films, thereby improving charge transport decreasing recombination, is reported. Based this strategy, power conversion of cell significantly increased...
Here, large-scale and uniform hexagonal zinc oxide (ZnO) nanosheet films were deposited onto indium tin (ITO)-coated transparent conducting glass substrates via a facile galvanic displacement deposition process. Compared with other commonly used solution methods, this process avoids high temperature electric power as well supporting agents to make it simple cost-effective. The as-fabricated ZnO have wurtzite structure. photoelectrochemical (PEC) cell based on film/ITO photoelectrode was also...
Abstract The cathode interface plays a critical role in achieving high‐performance fullerene/perovskite planar solar cells. Herein, the simple molecule Isatin and its derivatives are introduced at back contact [6,6]‐phenyl‐C61‐butyric acid methyl ester (PCBM)/Al as modification interlayer. It is revealed that interlayers facilitate electron transport/extraction suppress recombination, attributed to formation of negative dipole potential steps passivation interfacial trap density. average...
The incorporation of P4VP polymer could effectively passivate defects, thus improving both the device performance and stability.
Interface passivation in the electron transport layer (ETL) has emerged as a very important and challenging topic for improvement of stability efficiency perovskite solar cells (PSCs). Here, we introduce n-type small organic molecule Y6 that acts an effective ETL modifier through surface engineering. As result, simple PCBM + led to significantly stronger light absorption, higher extraction ability transportability, reduced recombination loss regular MAPbI3 PSCs. The power conversion can be...
Abstract Additive processing is proven to be an effective method improve the efficiency and stability of perovskite solar cells; however, its intrinsic role in directing crystallization pathway thus morphology formation remains unknown. In situ grazing‐incidence wide‐angle x‐ray scattering (GIWAXS) applied study function a 1,8‐diiodooctane (DIO) additive manipulating behavior thin films. It seen that DIO could induce multi‐stage intermediate phases increases activation energy for nucleation...
It is challenging to realize high efficiency and stability in perovskite photovoltaics simultaneously. Here, we show supramolecular chemistry using macrocyclic crown ether prepare high-performance metal-halide films. Multiple cooperative interactions between perovskites are built, superior defect passivation achieved. A thin crystalline capping layer on top of constructed synergistically passivate the surface defects protect underlying films from environmental damage. The confirmed be a...
Appropriate energy-level alignment in non-fullerene ternary organic solar cells (OSCs) can enhance the power conversion efficiencies (PCEs), due to simultaneous improvement charge generation/transportation and reduction voltage loss. Seven machine-learning (ML) algorithms were used build regression classification models based on parameters predict PCE capture high-performance material combinations, random forest showed best predictive capability. Furthermore, two sets of verification...
We report a facile and large-scale fabrication of highly ordered one-dimensional (1D) indium phosphide (InP) nanopore arrays (NPs) their application as photoelectrodes for photoelectrochemical (PEC) hydrogen production. These InP NPs exhibit superior PEC performance due to excellent light-trapping characteristics, high-quality 1D conducting channels large surface areas. The photocurrent density optimized is 8.9 times higher than that planar counterpart at an applied potential +0.3 V versus...
Ordered three-dimensional (3D) nanostructure arrays hold promise for high-performance energy harvesting and storage devices. Here, we report the fabrication of InP nanopore (NPs) in unique 3D architectures with excellent light trapping characteristic large surface areas use as highly active photoelectrodes photoelectrochemical (PEC) hydrogen evolution The ordered NPs were scalably synthesized by a facile two-step etching process (1) anodic neutral 3 M NaCl electrolytes to realize nanoporous...
Abstract The significant role of the cathodic binder in modulating mass transport within catalyst layer (CL) fuel cells is essential for optimizing cell performance. This investigation focuses on enhancing membrane electrode assembly (MEA) through utilization a short‐side‐chain perfluoro‐sulfonic acid (SSC‐PFSA) ionomer as cathode binder, referred to SSC‐MEA. study meticulously visualizes distinctive interpenetrating networks ionomers and catalysts, explicitly clarifies triple‐phase...
A novel approach for depositing the giant molecule acceptor (GMA) at donor-acceptor interface to enhance efficiency and stability of organic photovoltaic (OPV) devices through a designed interface-enhanced layer-by-layer device fabrication protocol is proposed. The DQx-Ph mixed with polymer donor in bottom layer form fibril phase phase, followed by subsequent deposition main L8-BO. L8-BO solution swells alters localized morphology mixing introducing fibrillar crystallization pushing...
High-performance supercapacitors are very desirable for many portable electronic devices, electric vehicles and high-power devices. Herein, a facile binder-free synthesis method, galvanic displacement of the precursor followed by heat treatment, is used to fabricate ultrathin Co3O4 nanosheet arrays on nickel foam substrate. When as supercapacitor electrode prepared exhibits maximum specific capacitance 1095 F g-1 at current density 1 A good cycling stability 71% retention after 2000 tests....
Abstract The hole‐transport layer (HTL) is critical to high performance of perovskite solar cells (PSCs) in terms hole extraction, transportation, and mediation the following film formation. Here, interplay between HTLs open‐circuit voltage ( V OC ) PSCs directly targeted. results suggest that there no evident relation obtained work function it controlled by recombination losses inside material (grain boundaries trap states) as well at interfacial contacts. Additionally, an insight...