A5032774713- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Organic Electronics and Photovoltaics
- Electrochemical sensors and biosensors
- Solid-state spectroscopy and crystallography
- Organic Light-Emitting Diodes Research
- Analytical Chemistry and Sensors
- Metal-Organic Frameworks: Synthesis and Applications
- Organic and Molecular Conductors Research
- Electronic and Structural Properties of Oxides
- Gas Sensing Nanomaterials and Sensors
- Advanced Memory and Neural Computing
- Luminescence and Fluorescent Materials
- Advanced NMR Techniques and Applications
- Advanced Condensed Matter Physics
- Molecular Junctions and Nanostructures
- Carbon Nanotubes in Composites
- Advanced Nanomaterials in Catalysis
- Semiconductor materials and devices
- Fullerene Chemistry and Applications
- Semiconductor materials and interfaces
National Institute for Materials Science
2020-2023
National Taiwan University
2010-2022
Ningbo Institute of Industrial Technology
2017-2020
Chinese Academy of Sciences
2017-2020
World Precision Instruments (United States)
2020
National Science and Technology Council
2015
Long-term operational stability is the foremost issue delaying commercialization of perovskite solar cells (PSCs). Here we demonstrate an in-situ cross-linking strategy for operationally stable inverted MAPbI
Calligraphic counter electrodes: An important photovoltaic application using FeS2 nanocrystal (NC) pyrite ink to fabricate a electrode as an alternative Pt in dye-sensitized solar cells is demonstrated. NC exhibits excellent electrochemical catalytic activity and remarkable stability. ITO=indium-doped tin oxide. As service our authors readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed may be re-organized for online delivery, but...
A novel approach to modulate the nucleation and growth of perovskite crystals by intermixing precursor-capped nanoparticles has been reported.
An imide-functionalized material, poly(oxyethylene)-segmented polymer, was synthesized from the reaction of poly(oxyethylene)diamine 2000 g mol−1Mw and 4,4′-oxydiphthalic anhydride used to disperse hybrid nanomaterials platinum nanoparticles multi-wall carbon nanotubes (PtNP/MWCNT). The composite material spin-coated into film further prepared as counter electrode (PtNP/MWCNT-CE) for a dye-sensitized solar cell (DSSC). short-circuit current density (JSC) power-conversion efficiency (η) DSSC...
Abstract Fullerene derivatives, which possess extraordinary geometric shapes and high electron affinity, have attracted significant attention for thin film technologies. This study demonstrates an important photovoltaic application using carboxyl‐functionalized carbon buckyballs, C60 pyrrolidine tris‐acid (CPTA), to fabricate transport layers (ETLs) that replace traditional metal oxide‐based ETLs in efficient stable n‐i‐p‐structured planar perovskite solar cells (PSCs). The uniform CPTA is...
Abstract Crystal engineering of CH 3 NH PbI perovskite materials through template‐directed nucleation and growth on 2 nuclei dispersed in a polar fullerene (C 60 pyrrolidine tris‐acid, CPTA) electron transport layer (ETL) (CPTA:PbI ) is proposed as route for controlling crystallization kinetics grain sizes. Chemical analysis the CPTA:PbI template confirms that CPTA carboxylic acid groups can form monodentate or bidentate chelate with Pb(II), resulting lower barrier promotes rapid formation...
Here, we report that the performance of perovskite solar cells (PSCs) can be improved by aggregation control in polyelectrolytes interlayer. Through counterions tailoring and solvent optimization, strong P3CT-Na broken up P3CT-CH3NH2. When using P3CT-CH3NH2 to replace as hole transport layer, average efficiency is greatly from 16.9 18.9% (highest 19.6%). Importantly, over 15% obtained 1 cm2 devices with P3CT-CH3NH2, ∼50% higher than (10.3%). Our work demonstrates important role interlayer,...
The presence of the PbI2 passivation layers at perovskite crystal grains has been found to considerably affect charge carrier transport behaviors and device performance solar cells. This work demonstrates application a novel light-modulated scanning tunneling microscopy (LM-STM) technique reveal interfacial electronic structures heterointerfaces between CH3NH3PbI3 crystals individual under light illumination. Most importantly, this enabled first observation spatially resolved mapping images...
A hybrid of polymer-dispersed multi-walled carbon nanotubes (MWCNT) was utilized in networking with the conventional composition gel electrolyte dye-sensitized solar cells (DSSCs) to purposely enhance cell efficiency. The requisite polymer as dispersant is structurally tailored for its functionalities consisting poly(oxyethylene)-segmented amides and imides. existence multi-functional first de-bundling originally aggregated MWCNT subsequently electrolyte, poly(vinylidene...
Nonfullerene polymer solar cells (PSCs) have earned widespread and intense interest on account of their properties such as tunable energy levels, potential for low-cost production processes, reduced losses, strong light absorption coefficients. Here, a water-/alcohol-soluble zwitterion perylene diimide (PDI-z) consisted sulfobetaine ion terminal substituent PDI conjugated core was synthesized. PDI-z employed an electron-transport layer (ETL) nonfullerene PSC devices, obtaining optimal power...
Effects of the CPTA-passivated SnO<sub>2</sub> electron transport layer on photocarrier dynamics in perovskite solar cells revealed by ultrafast pump-probe technique.
Organometallic two-dimensional (2D) nanosheets with tailorable components have recently fascinated the optoelectronic communities due to their solution-processable nature. However, poor stability of organic molecules may hinder practical application in photovoltaic devices. Instead conventional organometallic 2D low weatherability, an air-stable π-conjugated bis(dithiolene)iron(II) (FeBHT) coordination nanosheet (CONASH) is synthesized via bottom-up liquid/liquid interfacial polymerization...
A platinum nanoparticle/multi-wall carbon nanotube (PtNP/MWCNT) hybrid counter electrode (CE) based on a flexible substrate, Ti foil, was prepared for high performance dye-sensitized solar cell (DSSC) via facile fabricating route. This nanohybrid CE established by using requisite homemade dispersant, consisting of poly(oxyethylene) segment and imide linkage functionalities. MWCNTs were well suspended in an ethanol/water solution the presence copolymer dispersant PtNPs. The containing...
Abstract The design of active and stable semiconducting composites with enhanced photoresponse from visible light to near infrared (NIR) is a key improve solar energy harvesting for photolysis water in photoelectrochemical cell. In this study, we prepared earth abundant consisting iron pyrite Titanium oxide as photoanode (FeS 2 /TiO photoanode) applications. detailed structure atomic compositions FeS was characterized by high-resolution transmission electron microscopy (HRTEM),...
Limited methods are available for investigating the reorientational dynamics of A-site cations in two-dimensional organic-inorganic hybrid perovskites (2D OIHPs), which play a pivotal role determining their physical properties. Here, we describe an approach to study using solid-state NMR and stable isotope labelling.
A novel small-molecule, B2F, based on benzobis(thiadiazole) was synthesized as an efficient electron extraction material for perovskite solar cells.
A nanohybrid of platinum and carbon nanotubes (Pt/CNT) with dual functions catalytic activity conductivity was synthesized. The selection the poly(oxyethylene)-backboned polyimide dispersant essential for preparing dispersion de-bundled CNTs salts in ethanol/water. Subsequent solution casting annealing at optimized temperature 390 °C led to situ reduction formation a thin film Pt/CNT nanohybrids on glass substrate. used directly as counter electrode (CE) dye-sensitized solar cell (DSSC),...
Gegenelektroden in Sonntagsschrift: Die Anwendung von Nanokristallen (NCs) aus Pyrit (FeS2) als Tinte zum Aufbau einer Gegenelektrode bietet eine Alternative Einsatz Pt Farbstoffsolarzellen. FeS2-NC-Tinte ist hervorragend elektrokatalytisch aktiv und elektrochemisch bemerkenswert stabil. ITO=indiumdotiertes Zinnoxid. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed may be re-organized for online...
Fulleropyrrolidine (CPTA-E) is used as an electron transport layer for high-efficiency inverted perovskite solar cells.
Two-dimensional (2D) vdW materials have been integrated into optoelectronic devices to achieve exceptional functionality. However, the integration of large-area 2D thin films organic light-emitting (OLEDs) remains challenging because finite number inorganic and high-temperature requirements their deposition process. The construction organometallic holds immense potential solution synthesis unlimited structural functional diversity. Here, we report a facile route using an oil-water...
Graded 2D perovskite capping shells with continuously upshifting valence bands, produced by tailored dimensional engineering, can effectively extract holes from 3D cores. Real-space observation of electronic structures will fully reveal the operating mechanisms 2D/3D hybrid solar cells (PSCs). Here, for first time, light-modulated scanning tunneling microscopy visualizes cross-sectional band alignment across (C4H9NH3)2(CH3NH3)n-1PbnI3n+1/3D CH3NH3PbI3 stacked perovskites. By systematically...
To replace high-temperature sintered scaffold materials in conventional CH3NH3PbI3-based solar cells, this study demonstrates a new device structure of bulk intermixing (BI)-type CH3NH3PbI3/TiO2 nanorod (NR) hybrid cell, where dispersed TiO2 NRs from chemical synthesis are intermixed with the perovskite absorbing layer to form BI-type perovskite/TiO2 NR for fabrication. Through interface engineering between surface and photoactive material CH3NH3PbI3 by ligand exchange treatment, remarkable...