A5101700501- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Advanced battery technologies research
- Organic Light-Emitting Diodes Research
- Advanced Photocatalysis Techniques
- Solid-state spectroscopy and crystallography
- Organic Electronics and Photovoltaics
- Electrocatalysts for Energy Conversion
- Advanced biosensing and bioanalysis techniques
- TiO2 Photocatalysis and Solar Cells
- Catalytic Processes in Materials Science
- Organic and Molecular Conductors Research
- Electrochemical Analysis and Applications
- Carbon and Quantum Dots Applications
- Copper-based nanomaterials and applications
- Synthesis and biological activity
- biodegradable polymer synthesis and properties
- Advanced Biosensing Techniques and Applications
- Lipoproteins and Cardiovascular Health
- Antiplatelet Therapy and Cardiovascular Diseases
- Copper Interconnects and Reliability
- Polymer Nanocomposites and Properties
- Advanced Nanomaterials in Catalysis
Kunming University of Science and Technology
2024-2025
Chongqing University
2021-2024
Third Affiliated Hospital of Southern Medical University
2024
Jiangnan University
2021-2022
Taiyuan University of Technology
2022
Nanjing Normal University
2012
State Key Laboratory of Chemobiosensing and Chemometrics
2007-2008
Hunan University
2007-2008
Jinan University
2008
Interfacial trap-assisted non-radiative recombination and residual stress impede the further increase of power conversion efficiency (PCE) stability methylammonium-free (MA-free) perovskite solar cells (PSCs). Here, we report an interfacial defect passivation release strategy through employing multi-active-site Lewis base ligand (i.e., (5-mercapto-1,3,4-thiadiazol-2-ylthio)acetic acid (MTDAA)) to modify surface grain boundaries (GBs) MA-free films. Both experimental theoretical results...
A novel and effective multifunctional modification strategy through the incorporation of Girard's Reagent T molecules to modify SnO<sub>2</sub>nanoparticles, which simultaneously enhances efficiency stability is reported.
Abstract Interface engineering is one feasible and effective approach to minimize the interfacial nonradiative recombination stemming from defects, residual stress, energy level mismatch. Herein, a novel steric‐hindrance‐dependent buried interface defect passivation stress release strategy reported, which implemented by adopting series of adamantane derivative molecules functionalized with CO (i.e., 2‐adamantanone (AD), 1‐adamantane carboxylic acid (ADCA), 1‐adamantaneacetic (ADAA)) modify...
Perovskite solar cells suffer from poor reproducibility due to the degradation of perovskite precursor solution. Herein, we report an effective stabilization strategy via incorporating 3-hydrazinobenzoic acid (3-HBA) containing carboxyl (-COOH) and hydrazine (-NHNH2 ) functional groups as stabilizer. The oxidation I- , deprotonation organic cations amine-cation reaction are main causes mixed cation -NHNH2 can reduce I2 defects back thus suppress while H+ generated by -COOH inhibit subsequent...
The instability of top interface induced by interfacial defects and residual tensile strain hinders the realization long-term stable n-i-p regular perovskite solar cells (PSCs). Herein, one molecular locking strategy is reported to stabilize adopting polydentate ligand green biomaterial 2-deoxy-2,2-difluoro-d-erythro-pentafuranous-1-ulose-3,5-dibenzoate (DDPUD) manipulate surface grain boundaries films. Both experimental theoretical evidence collectively uncover that uncoordinated Pb
Abstract Ion migration‐induced intrinsic instability and large‐area fabrication pose a tough challenge for the commercial deployment of perovskite photovoltaics. Herein, an interface heterojunction metal electrode stabilization strategy is developed by suppressing ion migration via managing lead‐based imperfections. After screening series cations nonhalide anions, ideal organic salt molecule dimethylammonium trifluoroacetate (DMATFA) consisting (DMA + ) cation (TFA − anion selected to...
The instability of the buried interface poses a serious challenge for commercializing perovskite photovoltaic technology. Herein, we report polydentate ligand reinforced chelating strategy to strengthen stability by managing interfacial defects and stress. bis(2,2,2-trifluoroethyl) (methoxycarbonylmethyl)phosphonate (BTP) is employed manipulate interface. C=O, P=O two -CF
The migration and diffusion of Li+ halide ions, as well the volatilization 4-tert butylpyridine (tBP), seriously restrain long-term operational stability n-i-p perovskite solar cells (PSCs). Herein, we employ l-glutamic acid dibenzyl ester 4-toluenesulfonate (GADET) to simultaneously modulate hole transport layer (HTL) buried interface, which stabilizes HTL minimizes interfacial energy loss by immobilizing Li+, tBP, ions passivating dual interface defects. After forming Spiro-OMeTAD•+TFSI–,...
Abstract The defects from functional layers and interface, the agglomeration of SnO 2 nanoparticles (NPs), poor perovskite crystallization are main barrier to further heightening power conversion efficiency (PCE) stability regular solar cells. Here, a bottom‐up multilayer manipulation strategy by pre‐embedding multisite racemic DL‐cysteine hydrochloride monohydrate (DLCH) into electron transport layer (ETL) is reported. positively negatively charged ETL, their interface can be passivated...
Abstract We modified perovskite/Spiro‐OMeTAD interface by using two novel phosphonium salts containing PF 6 − counter anion (i.e., ClTPPPF and BrTPPPF ). The cation in possess not only ionic bonds but also coordination with perovskites. vacancies at the surface GBs of perovskite films can be filled cations anions, respectively, resulting reduced defect density prolonged carrier lifetimes. stronger chemical interaction accordingly better passivation were certified for than . As a result,...
Minimizing bulk and interfacial nonradiative recombination losses is key to further improving the photovoltaic performance of perovskite solar cells (PSC) but very challenging. Herein, we report a gradient dimensionality engineering simultaneously passivate interface defects films. The 2D/3D heterojunction skillfully constructed by diffusion an amphiphilic spacer cation from bulk. strategy has achieved multiple functions, including defect passivation, hole extraction improvement, moisture...
Abstract Although perovskite solar cells (PSCs) are regarded as one of the most promising photovoltaic technologies, interfacial defects and energy barrier main bottlenecks for further improving their performance stability. Herein, an effective, facile “molecular bridge” strategy to improve stability PSCs simultaneously is reported. This realized by introducing a self‐assembly molecule, namely, 5‐fluoro‐pyridine carboxylic acid (5‐FPA), modify SnO 2 /perovskite buried interface. The...
Highly ordered titania nanotube arrays are fabricated by anodic oxidation of titanium in a fluoride-ion-containing electrolyte. In this work Co−Ag−Pt nanoparticles, approximately 20 nm diameter, electrochemically deposited inside the nanotubes and catalytic properties resultant architecture examined using Mn2+/Mn3+ as probe. The effect Co, Ag, Pt loading content on activity is investigated. comparison to electrode, potential Co−Ag−Pt/titania array electrode negatively shifted 93 mV peak...
Illustration of the position and functions 1D materials in PSCs.
Facing the defects and energy barrier at interface of perovskite solar cells, we propose a chiral molecule engineering strategy to simultaneously heal interfacial regulate band alignment. S-ibuprofen (S-IBU), R-ibuprofen (R-IBU), racemic ibuprofen (rac-IBU) are used post-treat films. rac-IBU molecules possess strongest anchoring on surface perovskites among all molecules, translating into best defect passivation effect. The hydrophobic isobutyl group benzene ring could increase film moisture...