A5101608543- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Conducting polymers and applications
- Solid-state spectroscopy and crystallography
- Random lasers and scattering media
- Fault Detection and Control Systems
- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Building Energy and Comfort Optimization
- Impact of Light on Environment and Health
- Organic Light-Emitting Diodes Research
- Microwave Dielectric Ceramics Synthesis
- Ferroelectric and Piezoelectric Materials
- Copper-based nanomaterials and applications
- Photonic Crystal and Fiber Optics
- Color perception and design
- Optical and Acousto-Optic Technologies
- Luminescence Properties of Advanced Materials
Chinese Academy of Sciences
2020-2024
University of Chinese Academy of Sciences
2020-2024
Institute of Semiconductors
2020-2024
Tsinghua–Berkeley Shenzhen Institute
2024
Fujian Institute of Research on the Structure of Matter
2023
Tongji University
2021
Central South University
2018
In halide perovskite solar cells the formation of secondary-phase excess lead iodide (PbI2) has some positive effects on power conversion efficiency (PCE) but can be detrimental to device stability and large hysteresis in voltage sweeps. We converted PbI2 into an inactive (PbI2)2RbCl compound by RbCl doping, which effectively stabilizes phase. obtained a certified PCE 25.6% for FAPbI3 (FA, formamidinium) basis this strategy. Devices retained 96% their original values after 1000 hours shelf...
The power conversion efficiency (PCE) of inverted perovskite solar cells (PSCs) is still lagging behind that conventional PSCs, in part because inefficient carrier transport and poor morphology hole layers (HTLs). We optimized self-assembly [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid (Me-4PACz) onto nickel oxide (NiOx) nanoparticles as an HTL through treatment with hydrogen peroxide, which created a more uniform dispersion high conductivity attributed to the formation Ni3+ well...
The efficiency and stability of perovskite module devices are mainly limited by the quality scalable films sub-cells' lateral contact. Here, firstly, we report constant low temperature substrate to regulate growth intermediate slow down crystallization for obtaining high-quality homogeneous in large scale size, which avoid effect ambient on film quality. Secondly, a scribing step named P1.5 was added before top function layers deposition, diffusion barrier layer can be formed "naturally" at...
Abstract Cesium lead iodide (CsPbI 3 ) perovskite has gained great attention due to its potential thermal stability and appropriate bandgap ( ≈ 1.73 eV) for tandem cells. However, the moisture‐induced thermodynamically unstable phase large open‐circuit voltage V OC deficit also low efficiency seriously limit further development. Herein, long chain phenylethylammonium (PEA) is utilized into CsPbI stabilize orthorhombic black (γ‐CsPbI under ambient condition. Furthermore, moderate acetate...
Abstract Developing high‐quality wide bandgap (WBG) perovskites with ≈1.7 eV ( E g ) is critical to couple silicon and create efficient silicon/perovskite tandem devices. The sufferings of large open‐circuit voltage V OC loss unstable power output under operation continuously highlight the criticality fully develop WBG perovskite films. In this study, rubidium thiocyanate as additive regulators in are incorporated, significantly reducing non‐radiative recombination, ion‐migration, phase...
The state‐of‐the‐art perovskite solar cells (PSCs) have reached a certified efficiency approaching 26% in decades. It is noteworthy that the record efficiencies are almost based on regular structure PSCs using spiro‐OMeTAD (Spiro) as hole transport layer. However, necessity of rather long (8–24 h) oxidation process Spiro can probably cause potential instability and poor reproducibility because hygroscopic additives humid‐sensitive layer underneath. Herein, fast method by introducing iodine...
In the last decade, perovskite solar cells (PSCs) have greatly drawn researchers’ attention, with power conversion efficiency surging from 3.8% to 25.5%. PSCs possess merits of low cost, simple fabrication process and high performance, which could be one most promising photovoltaic technologies in future. this review, we focus on summary updated progresses single junction including efficiency, stability large area module. Then, important tandem are briefly discussed. A prospect into future...
Perovskite solar cells (PSCs) have witnessed great achievement in the past decade. Most of previous researches focus on n–i–p structure PSCs with ultra-high efficiency. While devices usually used unstable charge transport layers, such as hygroscopic doped spiro-OMeTAD, which affect long-term stability. The inverted device p–i–n owns better stability when using stable undoped organic molecular or metal oxide materials. There are significant progresses PSCs, most them related to interface...
In this study, an optical fiber temperature sensor based on up-conversion luminescence (UCL) is proposed. The core part a new plan of the sensing unit, which constructed with UCL materials <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msub> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:mi mathvariant="normal">N</mml:mi> mathvariant="normal">a</mml:mi> mathvariant="normal">Y</mml:mi> mathvariant="normal">F</mml:mi> </mml:mrow> <mml:mn>4</mml:mn> </mml:msub>...
The influence of light environment on human mood and alertness has attracted much attention, its quantitative research is very important for human-centred lighting control. In this study, the impact was analyzed when illuminance range 100~1000 lx. Through perception objective physiological signals, correlation between parameters electrocardiogram, electrodermal activity, skin temperature, blood oxygen signals subjective indices valence, arousal, were quantitatively analyzed. findings showed...