A5046658329- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Luminescence Properties of Advanced Materials
- Organic Light-Emitting Diodes Research
- ZnO doping and properties
- 2D Materials and Applications
- Solid-state spectroscopy and crystallography
- Gas Sensing Nanomaterials and Sensors
- Optical properties and cooling technologies in crystalline materials
- Thin-Film Transistor Technologies
- Semiconductor materials and devices
- Solid State Laser Technologies
- Organic Electronics and Photovoltaics
- Advanced Memory and Neural Computing
- Ga2O3 and related materials
- Radiation Detection and Scintillator Technologies
- Advanced Sensor and Energy Harvesting Materials
- Advanced Photocatalysis Techniques
- Nanocluster Synthesis and Applications
- Electronic and Structural Properties of Oxides
- Photonic and Optical Devices
- Analytical Chemistry and Sensors
- Luminescence and Fluorescent Materials
Chongqing University
2016-2025
Yanshan University
2023-2025
Integrated Optoelectronics (Norway)
2025
San’an Optoelectronics (China)
2025
Chongqing University of Technology
2021-2024
Shanghai Institute of Optics and Fine Mechanics
2016-2022
Chinese Academy of Sciences
2022
Ministry of Education of the People's Republic of China
2017-2019
Tianjin University
2006-2007
Ultra-thin PTAA layers contribute to interface defect passivation and recombination reduction improve the efficiency of perovskite solar cells.
The poor stability and aggregation problem of CsPbBr3 quantum dots (QDs) in air are great challenges for their future practical application. Herein, a simple effective ligand-modification strategy is proposed by introducing 2-hexyldecanoic acid (DA) with two short branched chains to replace oleic (OA) long during the synthesis process. These not only maintain colloidal but also contribute efficient radiative recombination. calculations show that QDs DA modification (CsPbBr3 -DA QDs) have...
Recently, the thermally stable and facilely fabricated inorganic CsPbIBr 2 perovskite solar cells (PSCs) have attracted tremendous attention where electron transport layer (ETL) is vital. However, typical sintering temperature for widely used material, that is, TiO , more than 400 °C, elevating cost hindering application. Due to high mobility low fabrication temperature, ZnO becomes a desirable alternative as ETL in PSCs, albeit with open‐circuit voltage ( V oc ). Herein, this work...
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...
All‐inorganic perovskite CsPbX 3 (X = Cl, Br, I) and related materials are promising candidates for potential solar cells, light emitting diodes, photodetectors. Here, a novel architecture made of /ZnS quantum dot heterodimers synthesized via facile solution‐phase process is reported. Microscopic measurements show that heterodimer has high crystalline quality with enhanced chemical stability, as also evidenced by systematic density functional theory based first‐principles calculations....
All-inorganic perovskite CsPbX3 (X = Cl, Br, or I) is widely used in a variety of photoelectric devices such as solar cells, light-emitting diodes, lasers, and photodetectors. However, studies to understand the flexible electrical application are relatively scarce, mainly due limitations low-temperature fabricating process. In this study, all-inorganic CsPbBr3 films were successfully fabricated at 75 °C through two-step method. The highly crystallized first employed resistive switching layer...
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.
A possible high efficiency working model of a monolayer PEDOT:PSS film and brief fabrication process.
Abstract The photoluminescence quantum yield (PLQY) of CsPbBr 3 perovskite nanocrystals (NCs) prepared by the hot‐injection method can exceed 90%, which have attracted intensive attention for white light‐emitting diodes (WLEDs). However, whole experiment requires air isolation and relatively high temperature. In addition, poor stability NCs impedes their applications. Here, a facile is reported to synthesize @ZrO 2 at room temperature in air. Owing using ZrO coated NCs, not only present PLQY...
All-inorganic perovskite CsPbBr3 quantum dots (QDs) with an emission peak of around 520 nm were synthesized by a hot-injection method, and systematically studied as green phosphor for light-emitting diodes (LEDs). Highly pure light 534 full-width at half-maximum (FWHM) about 20 was achieved using QDs GaN LEDs. Commission Internationale Ed I'Eclairage coordinate the fabricated LEDs (0.203, 0.757). Compared to LEDs, current-voltage characteristic LED did not show any degradation. Moreover,...
The electron transport layer (ETL) in perovskite photodetectors is playing a vital role highly efficient extraction. Herein, this work reports photodetector based on hydrothermal-fabricated ZnO nanorods (NRs) as the ETL and hot-injection-fabricated CsPbBr3 quantum dot (QD) photoabsorber. crystalline structure, morphologies, photoluminescence (PL) of materials physics mechanism extraction devices are characterized analyzed. PL time-resolved confirm reduced recombination enhanced to indium tin...
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...
Synergistic modification of new intermediate phase assisted crystallization and upper interface passivation for enhanced crystallization, reduced defect density, released stress in perovskite films, enabling 24.61% efficient inverted devices.
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...
In this work, MXene Ti3C2Tx-derived nitrogen-functionalized heterophase TiO2 homojunctions (N-MXene) were prepared via the urea-involved solvothermal treatment with varying reaction time as sensing layer to detect trace NH3 gas at room temperature (20 °C). Compared no signal for pristine counterpart, 18 h-treated sensors (N-MXene-18) achieved a detection limit of 200 ppb an inspiring response that was 7.3% better than existing MXene-involved reports thus far. Also, decent repeatability,...