A5016626934- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Organic Electronics and Photovoltaics
- Chalcogenide Semiconductor Thin Films
- Rare-earth and actinide compounds
- Advanced Photocatalysis Techniques
- Organic Light-Emitting Diodes Research
- Thin-Film Transistor Technologies
- Magnetic Properties of Alloys
- Iron-based superconductors research
- Semiconductor materials and interfaces
- Copper-based nanomaterials and applications
- Quasicrystal Structures and Properties
- 2D Materials and Applications
- X-ray Diffraction in Crystallography
- ZnO doping and properties
- Intermetallics and Advanced Alloy Properties
- TiO2 Photocatalysis and Solar Cells
- Thermodynamic and Structural Properties of Metals and Alloys
- Nanowire Synthesis and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Inorganic Chemistry and Materials
- Ga2O3 and related materials
- Solid-state spectroscopy and crystallography
Wuhan Institute of Technology
2016-2025
China Tobacco
2025
Wuhan University
2010-2024
Hong Kong Polytechnic University
2017-2019
Hong Kong Baptist University
2018
Kowloon Hospital
2018
Shenzhen Polytechnic
2018
State Council of the People's Republic of China
2016
Guangxi University
2006-2011
Wuhan University of Technology
2011
Lead halide perovskite solar cells with the high efficiencies typically use high-temperature processed TiO2 as electron transporting layers (ETLs). Here, we demonstrate that low-temperature solution-processed nanocrystalline SnO2 can be an excellent alternative ETL material for efficient cells. Our best-performing planar cell using such a has achieved average efficiency of 16.02%, obtained from measured both reverse and forward voltage scans. The outstanding performance ETLs is attributed to...
Abstract SnO 2 has been well investigated in many successful state‐of‐the‐art perovskite solar cells (PSCs) due to its favorable attributes such as high mobility, wide bandgap, and deep conduction band valence band. Several independent studies show the performances of PSCs with are higher than that TiO , especially device stability. In 2015, first planar were reported a power conversion efficiency over 17% using low temperature sol‐derived nanocrystal electron transport layer (ETL). Since...
Thin-film photovoltaics based on organic–inorganic hybrid perovskite light absorbers have recently emerged as a promising low-cost solar energy harvesting technology.
Efficient lead halide perovskite solar cells use hole-blocking layers to help collection of photogenerated electrons and achieve high open-circuit voltages. Here, we report the realization efficient grown directly on fluorine-doped tin oxide-coated substrates without using any layers. With ultraviolet–ozone treatment substrates, a planar Au/hole-transporting material/CH3NH3PbI3-xClx/substrate cell processed by solution method has achieved power conversion efficiency over 14% an voltage 1.06...
APTES-SAM as an efficient interfacial layer in planar perovskite solar cells, optimizing the interface and enhancing performance.
Abstract The carrier concentration of the electron‐selective layer (ESL) and hole‐selective can significantly affect performance organic–inorganic lead halide perovskite solar cells (PSCs). Herein, a facile yet effective two‐step method, i.e., room‐temperature colloidal synthesis low‐temperature removal additive (thiourea), to control SnO 2 quantum dot (QD) ESLs achieve high‐performance PSCs is developed. By optimizing electron density QD ESLs, champion stabilized power output 20.32% for...
A perovskite solar cell with a thin TiO2 compact film prepared by thermal oxidation of sputtered Ti achieved high efficiency 15.07%. The is very dense and inhibits the recombination process at interface. optimum thickness thinner than that spin-coating method. Also, porous can be sintered same time. This one-step sintering leads to lower dark current density, series resistance, higher resistance those two-step sintering. Therefore, has short-circuit density fill factor.
High-quality pinhole-free perovskite film with optimal crystalline morphology is critical for achieving high-efficiency and high-stability solar cells (PSCs). In this study, a p-type π-conjugated polymer poly[(2,6-(4,8-bis(5-(2-ethylhexyl) thiophen-2-yl)-benzo[1,2-b:4,5-b'] dithiophene))-alt-(5,5-(1',3'-di-2-thienyl-5',7'-bis(2-ethylhexyl) benzo[1',2'-c:4',5'-c'] dithiophene-4,8-dione))] (PBDB-T) introduced into chlorobenzene to form facile effective template-agent during the anti-solvent...
The origin of the performance difference perovskite solar cells using different temperature processed tin oxide electron selective layers.
Despite the rapid increase of efficiency, perovskite solar cells (PSCs) still face some challenges, one which is current-voltage hysteresis. Herein, it reported that yttrium-doped tin dioxide (Y-SnO2 ) electron selective layer (ESL) synthesized by an in situ hydrothermal growth process at 95 °C can significantly reduce hysteresis and improve performance PSCs. Comparison studies reveal two main effects Y doping SnO2 ESLs: (1) promotes formation well-aligned more homogeneous distribution...
In this letter, we report perovskite solar cells with thin dense Mg-doped TiO2 as hole-blocking layers (HBLs), which outperform using HBLs in several ways: higher open-circuit voltage (Voc) (1.08 V), power conversion efficiency (12.28%), short-circuit current, and fill factor. These properties improvements are attributed to the better of Mg-modulated compared such optical transmission properties, upshifted conduction band minimum (CBM) downshifted valence maximum (VBM), effect, electron life...
Mg doping improves interfacial contact and endows low hysteresis high temperature processed SnO<sub>2</sub>-based PSCs with a steady-state PCE of 14.55%.
Abstract Planar perovskite solar cells (PSCs) based on low‐temperature‐processed (LTP) SnO 2 have demonstrated excellent photovoltaic properties duo to the high electron mobility, wide bandgap, and suitable band energy alignment of LTP . However, planar PSCs or mesoporous (mp) high‐temperature‐processed (HTP) show much degraded performance. Here, a new strategy with fully HTP Mg‐doped quantum dot as blocking layer (bl) quite thin nanoparticle mp are developed. The performances both has been...
Efficient organic solar cells (OSCs) based on regioregular poly(3-hexylthiophene):fullerene derivative [6,6]-phenyl-C61butyric acid methyl ester composites have been fabricated fluorine-doped tin oxide (FTO) coated glass substrates by a radio frequency (RF) sputtered and ultraviolet ozone (UVO) treated MoS2 film as the hole-transport layer (HTL). With help of X-ray photoelectron spectroscopy, Raman transmission spectra Hall-effect system, we find that deposition temperature can modulate...
Perovskite solar cells (PSCs) may offer huge potential in photovoltaic conversion, yet their practical applications face one major obstacle: low stability, or quick degradation of initial efficiencies. Here, a new design scheme is presented to enhance the PSC stability by using low‐temperature hydrothermally grown hierarchical nano‐SnO 2 electron transport layers (ETLs). The ETL contains thin compact SnO layer underneath mesoporous nanosheets. plays multiple roles enhancing photon...
Indium oxide (In2O3) as a promising n-type semiconductor material has been widely employed in optoelectronic applications. In this work, we applied low-temperature solution-processed In2O3 nanocrystalline film an electron selective layer (ESL) perovskite solar cells (PSCs) for the first time. By taking advantages of good optical and electrical properties such high mobility, wide band gap, transmittance, obtained In2O3-based PSCs with efficiency exceeding 13% after optimizing concentration...
Nickel sulfide (NiS) nanowall networks have been prepared by a novel one-step hydrothermal method on nickel (Ni) foam substrate. The Ni has high conductivity and porous structure. To our knowledge, the is used as conductive substrate for dye-sensitized solar cell (DSSC) first time. not only but also sources of reaction. supported NiS this simple shows catalytic activity reduction triiodide ions. DSSC with transparent oxide (TCO)-free counter electrode (CE) was herein developed showed higher...
Abstract The plasmonic characteristic of core–shell nanomaterials can effectively improve exciton‐generation/dissociation and carrier‐transfer/collection. In this work, a new strategy based on Au@CdS nanospheres is introduced to passivate perovskite grain boundaries (GBs) the perovskite/hole transport layer interface via an antisolvent process. These nanoparticles trigger heterogeneous nucleation precursor for high‐quality films through formation intermediate Au@CdS–PbI 2 adduct, which lower...
Organo‐metal halide hybrid perovskites with mixed cations and halides have become promising photovoltaic materials, showing extraordinary optoelectronic properties excellent device performance. Herein, an organic semiconducting nonfullerene acceptor (NFA) molecule IT‐M is introduced as Lewis base to improve perovskite interfaces. This facile base‐assisted strategy effectively enhances the electronic of Cs 0.05 (MA 0.17 FA 0.83 ) 0.95 Pb(I Br 3 thin films, passivates surface defects further...
GlyCl passivates the defects of narrow-bandgap Pb–Sn perovskites from bottom to up, boosting solar cell efficiency 14.28% 22.07%.
Narrow-bandgap (NBG) mixed tin-lead (Sn-Pb) perovskite solar cells (PSCs) serve as crucial top subcells in all-perovskite tandem (TSCs). However, the prevalent use of poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) hole transport layers (HTLs) NBG PSCs compromises device efficiency and stability. To address this, study proposes a revitalizing strategy for buried interface Sn-Pb perovskites by directly immersing acetylcholine chloride (ACh) into PEDOT: PSS. ACh acts...
Abstract Semiconductor heterojunctions have garnered extensive interest in photocatalytic hydrogen generation, yet the limited light absorption and charge transfer efficiencies still restrict performance. The topological insulator has unique surface states high‐mobility electrons, demonstrating significant potential for enhancing photocatalysis. Herein, a ternary photocatalyst based on insulator, which CdS ZnS nanoparticles are grown Bi 2 Se 3 nanotube, is prepared efficient photocatalysis...
After continuous cropping for many years, crops are often subject to growth inhibition, which seriously affects their yields.In agricultural production, soil fumigation can effectively alleviate the biological stress on plants. However, relationship between microbial groups that respond changes and plants, as well whether existence makes a beneficial contribution remains unclear. We explored mechanism of promoting plant by affecting microorganisms. The results showed dazomet treatment...
Abstract Defects at the interface between perovskite and carrier transport layer are ≈100 times more prevalent than those within bulk, potentially serving as non‐radiative recombination centers to adversely affect extraction transport. Here, a green pyridoxine hydrochloride (PDHC) is introduced into SnO 2 quantum dots (QDs) solution. The resulting surface chloritization of QDs not only passivates defects, thereby strengthening contact among QDs, but also chemically interconnects with...