A5101452252- Conducting polymers and applications
- Perovskite Materials and Applications
- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Luminescence and Fluorescent Materials
- High-Temperature Coating Behaviors
- Synthesis and properties of polymers
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Thin-Film Transistor Technologies
- Electron Spin Resonance Studies
- Semiconductor Lasers and Optical Devices
- Additive Manufacturing Materials and Processes
- Advanced Sensor and Energy Harvesting Materials
- Spectroscopy and Quantum Chemical Studies
- Molecular Sensors and Ion Detection
- Photochemistry and Electron Transfer Studies
- High Entropy Alloys Studies
- Organoselenium and organotellurium chemistry
- Photonic and Optical Devices
- Smart Grid Energy Management
- Metal and Thin Film Mechanics
- Advanced materials and composites
City University of Hong Kong
2023-2025
Huazhong University of Science and Technology
2017-2024
Central China Normal University
2014
P-i-n geometry perovskite solar cells (PSCs) offer simplified fabrication, greater amenability to charge extraction layers, and low-temperature processing over n-i-p counterparts. Self-assembled monolayers (SAMs) can enhance the performance of p-i-n PSCs but ultrathin SAMs be thermally unstable. We report a robust hole-selective layer comprised nickel oxide (NiOx) nanoparticle film with surface-anchored (4-(3,11-dimethoxy-7H-dibenzo[c,g]carbazol-7-yl)butyl)phosphonic acid (MeO-4PADBC) SAM...
Abstract Currently, the performance improvement for inverted perovskite solar cells (PVSCs) is mainly limited by high open circuit voltage ( V OC ) loss caused detrimental non‐radiative recombination (NRR) processes. Herein, we report a simple and efficient way to simultaneously reduce NRR processes inside perovskites at interface rationally designing new pyridine‐based polymer hole‐transporting material (HTM), PPY2 , which exhibits suitable energy levels with perovskites, hole mobility,...
The interface and crystallinity of perovskite films play a decisive role in determining the device performance, which is significantly influenced by bottom hole-transporting material (HTM) inverted solar cells (PVSCs). Herein, simple design strategy polymer HTMs reported, can modulate wettability promote anchoring introducing pyridine units into polyarylamine backbone, so as to realize efficient stable PVSCs. HTM properties be effectively modified varying linkage sites units, 3,5-linked...
Abstract The commercialization of perovskite solar cells (PVSCs) urgently requires the development green‐solvent processable dopant‐free hole transporting materials (HTMs). However, strong intermolecular interactions that ensure high mobility always compromise solubility and film‐forming ability in green solvents. Herein, we show a simple but effective design strategy to solve this trade‐off, is, constructing star‐shaped D‐A‐D structure. resulting HTMs (BTP1‐2) can be processed by solvent...
Inorganic nickel oxide (NiO
Inverted p-i-n perovskite solar cells (PSCs) are easy to process but need improved interface characteristics with reduced energy loss prevent efficiency drops when increasing the active photovoltaic area. Here, we report a series of poly ferrocenyl molecules that can modulate surface enabling construction small- and large-area PSCs. We found perovskite–ferrocenyl interaction forms hybrid complex enhanced coordination strength activated electronic states, leading lower interfacial...
Abstract NiO x is one of the promising inorganic hole transporting materials in inverted perovskite solar cells (PSCs), however, its device efficiency and stability are still limited by energy level mismatch, low intrinsic conductivity, high interface defect density, complex active species. Herein, use an imide‐based donor–acceptor type semiconductor (BTF14) as interlayer between proposed, which facilitates extraction transfer, reduces density at film bulk, further concentration Ni >3+...
Unreported 2,3-dicyano-fluoranthene was first prepared as an efficient electron-withdrawing building block for constructing D–A type dopant-free hole transporting materials.
Abstract Squaraine dyes (SQs) are an important class of polymethine with a unique reasonable‐stabilized zwitterionic structure, in which electrons highly delocalized over the conjugated bridge. These can not only be easily synthesized via condensation, but also exhibit intense absorption and emission visible near‐infrared region excellent photochemical stability, making them attractive material candidates for many photoelectric biomedical applications. Thus, this review, after introduction...
To date, most of the prevailing organic hole-transporting materials (HTMs) used in perovskite solar cells (PVSCs), such as spiro-OMeTAD and PTAA, generally require a sophisticated doping process to ensure their reasonable properties. Unfortunately, employed dopants/additives associated oxidation reactions have been shown deteriorate long-term device stability seriously. The exploitation efficient stable dopant-free HTMs is thus strongly desired for PVSCs. However, effective molecular design...
Currently, there are only very few dopant-free polymer hole-transporting materials (HTMs) that can enable perovskite solar cells (PVSCs) to demonstrate a high power conversion efficiency (PCE) of greater than 20%. To address this need, simple and efficient way is developed synthesize novel crossconjugated polymers as performance HTMs endow PVSCs with PCE 21.3%, which among the highest values reported for single-junction inverted PVSCs. More importantly, rational understanding reasons why two...
Perovskite solar cells (PVSCs) have achieved incredible progress in power conversion efficiency (PCE) from 3.8% to 25.2% the past decade. With requirement of commercial applications, stability PVSCs is gradually arousing widespread concern and has become a key problem that must be solved. As an important part PVSCs, hole-transporting materials (HTMs) play role affecting overall device performance. However, for many reported HTMs, chemical doping process generally required improve hole...
Achieving rational control over chemical and energetic properties at the perovskite/electron transport layer (ETL) interface is crucial for realizing highly efficient stable next‐generation inverted perovskite solar cells (PSCs). To address this, we developed multifunctional ferrocene (Fc)‐based interlayers engineered to exhibit adjustable passivating electrochemical characteristics. These are designed minimize non‐radiative recombination and, modulate work function (WF) uniformity of...
Achieving rational control over chemical and energetic properties at the perovskite/electron transport layer (ETL) interface is crucial for realizing highly efficient stable next‐generation inverted perovskite solar cells (PSCs). To address this, we developed multifunctional ferrocene (Fc)‐based interlayers engineered to exhibit adjustable passivating electrochemical characteristics. These are designed minimize non‐radiative recombination and, modulate work function (WF) uniformity of...
Abstract Organic solar cells (OSCs) are regarded as one of the most promising flexible power sources due to their lightweight and properties, with improvement photovoltaic mechanical performance. To improve current density conversion efficiency (PCE), mPh4F‐TS (TS) PYSe2F‐T (PA) introduced into binary host, PM6/mPh4F‐TT (PM6/TT) third components. It is demonstrated that corresponding ternary devices, in both rigid achieved superior efficiencies (19.6%/17.7% for PM6/TT+TS, 19.2%/17.4%...
Herein, a new electropolymerized (EP) film has been <italic>in situ</italic> synthesized by electrochemical cyclic voltammetry method and applied to tune the work-function of PEDOT:PSS hole-transporting layer in organic solar cells.