A5005172863- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Crystallography and molecular interactions
- Photoreceptor and optogenetics research
- Ferroelectric and Piezoelectric Materials
- Electronic and Structural Properties of Oxides
- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- Covalent Organic Framework Applications
- Advanced Sensor and Energy Harvesting Materials
- ZnO doping and properties
- Luminescence Properties of Advanced Materials
- Dielectric materials and actuators
- Transition Metal Oxide Nanomaterials
- Magnetic and transport properties of perovskites and related materials
- Advanced Memory and Neural Computing
- Copper-based nanomaterials and applications
- Cholesterol and Lipid Metabolism
- Dye analysis and toxicity
Pennsylvania State University
2019-2024
Fuzhou University
2021-2024
Zhejiang University
2023-2024
Park University
2020
Wuhan University
2019
Qingdao University of Science and Technology
2014-2017
University of Science and Technology of China
2007-2009
Hefei National Center for Physical Sciences at Nanoscale
2007-2009
Fullerene derivative, such as [6,6]-phenyl C61 butyric acid methyl ester (PCBM), is widely used an electron-transport layer (ETL) in inverted perovskite solar cell (PSC). However, its low electron mobility, complexity achieving quality film formation, and severe nonradiative recombination at perovskite/PCBM interface due to the large capture region, lead lower efficiency for PSCs compared normal structures. Herein, we demonstrate effective practical strategy overcome these challenges....
We have developed a paradigm methodology that can isothermally crystallize halide perovskites at room temperature.
Black orthorhombic (B-γ) CsSnI3 with low toxicity and excellent optoelectronic properties is a promising candidate for perovskite solar cell (PSC). However, the performance of B-γ CsSnI3-based PSCs much lower than their lead-based or organotin-based counterparts due to heavy self-doping Sn2+ form Sn4+ under ambient-air conditions. Here, this undesirable oxidation in restricted by engineering localized electron density phthalimide (PTM) additive. The lone pairs NH two CO units PTM are...
Black orthorhombic (B-γ) CsSnI3 with reduced biotoxicity and environmental impact excellent optoelectronic properties is being considered as a promising eco-friendly candidate for high-performing perovskite solar cells (PSCs). A major challenge in large-scale implementation of PSCs includes the rapid transformation Sn2+ to Sn4+ (within few minutes) under an ambient-air condition. Here, we demonstrate that stable B-γ can be fabricated by incorporating N,N′-methylenebis(acrylamide) (MBAA) into...
The electron-transport layer (ETL) plays an important role in improving the performance of flexible perovskite solar cells (F-PSCs). Herein, a room-temperature-processed SnO2 :OH ETL is demonstrated, that exhibits reduced defect density, particular lower oxygen vacancy concentration, with better energy band alignment and more wettable surface for quality deposition. More importantly, efficient electron-transfer channel produced between due to formation hydrogen bonds at interface, resulting...
Perovskite solar cells (PSCs) without charge-carrier-transport layers (CTLs) are theoretically achievable due to the ambipolar charge-carrier-transfer characteristics presenting in perovskites. However, power conversion efficiency (PCE) of CTL-free PSCs needs further improvement. Herein, we provide a breakthrough fabrication cost-effective high-performance hole-transport-layer (HTL)-free PSC and trilayer with device configurations fluorine doped tin oxide (FTO)/SnO2/perovskite/carbon...
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The retina is the essential part of human visual system that receives light, converts it to neural signal, and transmits brain for recognition. red, green, blue (R/G/B) cone cells are natural narrowband photodetectors (PDs) sensitive R/G/B lights. Connecting with these cells, a multilayer neuro-network in provides neuromorphic preprocessing before transmitting brain. Inspired by this sophistication, we develop (NB) imaging sensor combining perovskite NB array (mimicking photoreceptors)...
Relaxor ferroelectrics (RFEs) are being actively investigated for energy-storage applications due to their large electric-field-induced polarization with slim hysteresis and fast energy charging-discharging capability. Here, a novel nanograin engineering approach based upon high kinetic deposition is reported, mechanically inducing the RFE behavior in normal ferroelectric Pb(Zr0.52 Ti0.48 )O3 (PZT), which results simultaneous enhancement dielectric breakdown strength (EDBS ) polarization....
The ionic structure of poly(heptazine imides) has a strong implication in photocatalytic hydrogen generation. From numerous reports, it is evident that these materials are also superior to covalent carbon nitrides various organic transformations. However, the reason been remaining vague. Herein, we report design molten-salt nitride (MCN) featuring represented by negatively charged polymeric scaffold and K+ counterions application this material as photocatalyst synthesis pharmaceutically...
Abstract Biomacromolecular pigments, such as melanin, play an essential role in the survival of all living beings. Melanin absorbs sunlight and transforms it into heat, which is crucial for avoiding damage to skin cells. Light absorption produces excited electrons, could either fall back ground states by releasing heat (photothermal effect) and/or light (photoluminescence), or stay at higher energy levels within its lifetime period, can be captured through external electronic circuitry...
Deoxyribonucleic acid (DNA) has been recently recognized as hole transport material apart from its well-known generic role. The promising long-range capability in DNA make it potential "molecular wire" optoelectronics. Here, we demonstrate a core–shell heterostructure of perovskite wrapped by cetyltrimethylammonium chloride modified (DNA-CTMA) through self-assembly process. Such design results enhanced extraction and holes the bio-photovoltaic device boosts efficiency to 20.63%....
Abstract Narrowband photodetector (NB‐PD) with selective light detection is critical for artificial vision and imaging. Intrinsic (optical‐filter‐free) NB‐PDs using conjugated organics or halide perovskite materials have been developed eliminating the current complex filtering systems in NB‐PDs. However, poor performance external driving circuit of organic as well doping uncontrollable recombination reactions typical limited their applicational diversification. A p‐type self‐doped intrinsic...
Abstract With the power conversion efficiencies of perovskite solar cells (PSCs) exceeding 25%, PSCs are a step closer to initial industrialization. Prior transferring from laboratory fabrication industrial manufacturing, issues such as scalability, material cost, and production line compatibility that significantly impact manufacturing remain be addressed. Here, breakthroughs on all these fronts reported. Carbon‐based with architecture fluorine doped tin oxide (FTO)/electron transport...
Halide perovskites show ubiquitous presences in growing fields at both fundamental and applied levels. Discovery, investigation, application of innovative are heavily dependent on the synthetic methodology terms time-/yield-/effort-/energy- efficiency. Conventional wet chemistry method provides easiness for thin film samples, but represents as an inefficient way bulk crystal synthesis. To overcome these, here we report a universal solid state-based route synthesizing high-quality...
Abstract Biological molecule-semiconductor interfacing has triggered numerous opportunities in applied physics such as bio-assisted data storage and computation, brain-computer interface, advanced distributed bio-sensing. The introduction of electronics into biological embodiment is being quickly developed it great potential providing adaptivity improving functionality. Reciprocally, introducing biomaterials semiconductors to manifest bio-mimetic functionality impactful triggering new...
Reverse intersystem crossing (RISC) is the rate-limited step for radiative process of thermally activated delayed fluorescence (TADF) materials, which important to achieve ideal photoluminescence and electroluminescence efficiency. Herein, we propose a new strategy introducing lone pair (n) electron with p orbital character enhance spin–orbit coupling (SOC) promoting RISC process. A proof-of-concept TADF molecule pairs, namely, MoCz-PCN, was developed, three counterparts without any...
Recently, halide perovskites have upstaged decades of solar cell development by reaching power conversion efficiencies that surpass the performance polycrystalline silicon. The efficiency improvement in perovskite cells is related to repeated recycling between photons and electron-hole pairs, reduced recombination losses, increased carrier lifetimes. Here, we demonstrate a novel approach toward augmenting invoking Förster Resonance Energy Transfer (FRET) mechanism. FRET occurs near-field...