A5066241791- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Diamond and Carbon-based Materials Research
- Semiconductor materials and devices
- Solid-state spectroscopy and crystallography
- Molecular Junctions and Nanostructures
- ZnO doping and properties
- Graphene research and applications
- Electronic and Structural Properties of Oxides
- 2D Materials and Applications
- Quantum and electron transport phenomena
- Surface and Thin Film Phenomena
- Electron and X-Ray Spectroscopy Techniques
- Transition Metal Oxide Nanomaterials
- Magnetic and transport properties of perovskites and related materials
- Mechanical and Optical Resonators
- Advanced Photocatalysis Techniques
- X-ray Spectroscopy and Fluorescence Analysis
- Advancements in Battery Materials
- Thin-Film Transistor Technologies
- Advanced Memory and Neural Computing
Chinese Academy of Sciences
2016-2025
Shanghai Advanced Research Institute
2018-2025
Shanghai Zhangjiang Laboratory
2020-2025
Shanghai Institute of Applied Physics
2016-2025
University of Chinese Academy of Sciences
2017-2025
Shanghai Synchrotron Radiation Facility
2015-2025
Shanghai Jiao Tong University
2024-2025
Nanjing Tech University
2025
Guilin University of Electronic Technology
2024-2025
Minzu University of China
2024-2025
Although β-CsPbI3 has a bandgap favorable for application in tandem solar cells, depositing and stabilizing experimentally remained challenge. We obtained highly crystalline films with an extended spectral response enhanced phase stability. Synchrotron-based x-ray scattering revealed the presence of oriented grains, sensitive elemental analyses-including inductively coupled plasma mass spectrometry time-of-flight secondary ion spectrometry-confirmed their all-inorganic composition. further...
Perovskite synthesis out in the open Although methods have been developed that create photoactive black perovskite phase of formamidinium lead iodide (α-FAPbI 3 ), these routes are temperature and humidity sensitive less compatible with large-scale solar cell production. Hui et al. report an alternative route which vertically aligned thin films grown from ionic liquid methylamine formate. Nanoscale channels lower barrier to permeation enable transformation α-FAPbI , even at high room...
Perovskite solar cells with the formula FA1-xCsxPbI3, where FA is formamidinium, provide an attractive option for integrating high efficiency, durable stability and compatibility scaled-up fabrication. Despite incorporation of Cs cations, which could potentially enable a perfect perovskite lattice1,2, compositional inhomogeneity caused by A-site cation segregation likely to be detrimental photovoltaic performance cells3,4. Here we visualized out-of-plane along vertical direction across films...
Abstract Organometal halide perovskites (OHP) are promising materials for low-cost, high-efficiency light-emitting diodes. In films with a distribution of two-dimensional OHP nanosheets and small three-dimensional nanocrystals, an energy funnel can be realized that concentrates the excitations in highly efficient radiative recombination centers. However, this is likely to contain inefficient pathways as size phase separation between organic phase. Here, we demonstrate crystallite precisely...
Iodine-doped Cu2Se shows a significantly improved thermoelectric performance during phase transitions by electron and phonon critical scattering, leading to dramatic increase in zT factor of 3–7 times culminating values 2.3 at 400 K.
Contemporary thin-film photovoltaic (PV) materials contain elements that are scarce (CIGS) or regulated (CdTe and lead-based perovskites), a fact may limit the widespread impact of these emerging PV technologies. Tin halide perovskites utilize less stringently than lead (Pb) employed in mainstream perovskite solar cells; however, even today's best tin-halide thin films suffer from limited carrier diffusion length poor film morphology. We devised synthetic route to enable situ reaction...
A champion efficiency of 12.4% is achieved for inverted planar heterojunction perovskite solar cells by employing graphene oxide as a hole conductor.
Daily temperature variations induce phase transitions and lattice strains in halide perovskites, challenging their stability solar cells. We stabilized the perovskite black improved cell performance using ordered dipolar structure of β-poly(1,1-difluoroethylene) to control film crystallization energy alignment. demonstrated p-i-n cells with a record power conversion efficiency 24.6% over 18 square millimeters 23.1% 1 centimeter, which retained 96 88% after 1000 hours 1-sun maximum point...
An efficient electron transport layer (ETL) plays a key role in promoting carrier separation and extraction planar perovskite solar cells (PSCs). effective composite ETL is fabricated using carboxylic-acid- hydroxyl-rich red-carbon quantum dots (RCQs) to dope low-temperature solution-processed SnO2 , which dramatically increases its mobility by ≈20 times from 9.32 × 10-4 1.73 10-2 cm2 V-1 s-1 . The achieved one of the highest reported mobilities for modified Fabricated PSCs based on this...
Abstract Perovskite solar cells (PSCs) have rapidly developed and achieved power conversion efficiencies of over 20% with diverse technical routes. Particularly, planar‐structured PSCs can be fabricated low‐temperature (≤150 °C) solution‐based processes, which is energy efficient compatible flexible substrates. Here, the efficiency stability planar are enhanced by improving interface contact between SnO 2 electron‐transport layer (ETL) perovskite layer. A biological polymer (heparin...
Abstract Organic–inorganic hybrid perovskite solar cells (PSCs) are currently attracting significant interest owing to their promising outdoor performance. However, the ability of indoor light harvesting perovskites and corresponding device performance rarely reported. Here, potential planar PSCs in for low‐power consumption devices is investigated. Ionic liquid 1‐butyl‐3‐methylimidazolium tetrafluoroborate ([BMIM]BF 4 ) employed as a modification layer [6,6]‐phenyl‐C61‐butyric acid methyl...
Mixed Pb–In perovskite solar cells are fabricated by using lead(II) chloride and indium(III) with methylammonium iodide. A maximum power conversion efficiency as high 17.55% is achieved owing to the quality of perovskites multiple ordered crystal orientations. As a service our authors readers, this journal provides supporting information supplied authors. Such materials peer reviewed may be re-organized for online delivery, but not copy-edited or typeset. Technical support issues arising...
The development of effective and stable hole transporting materials (HTMs) is very important for achieving high‐performance planar perovskite solar cells (PSCs). Herein, copper salts (cuprous thiocyanate (CuSCN) or cuprous iodide (CuI)) doped 2,2,7,7‐tetrakis( N , ‐di‐ p ‐methoxyphenylamine)‐9,9‐spirobifluorene (spiro‐OMeTAD) based on a solution processing as the HTM in PSCs demonstrated. incorporation CuSCN (or CuI) realizes p‐type doping with efficient charge transfer complex, which...
Crystal orientations in multiple orders correlate to the properties of polycrystalline materials, and it is critical manipulate these microstructural arrangements enhance device performance. Herein, we report a controllable approach facet orientation within ABX3 hybrid perovskites films by cation cascade doping at A-site. Two-dimensional synchrotron radiation grazing incidence wide-angle X-ray scattering employed probe crystal mixed thin films, revealing general pattern guide planes stacking...
Abstract Although all‐inorganic perovskite solar cells (PSCs) demonstrate high thermal stability, cesium‐lead halide perovskites with iodine content suffer from poor stability of the black phase (α‐phase). In this study, it is demonstrated that incorporating InCl 3 into host lattice helps to inhibit formation yellow (δ‐phase) and thereby enhances long‐term ambient stability. The enhanced achieved by a strategy for structural reconstruction CsPbI 2 Br means 3+ Cl − codoping, which gives rise...
2D Ruddlesden–Popper (2DRP) tin (Sn) perovskite solar cells (PSCs) play an irreplaceable role in advancing the commercialization of perovskite-based photovoltaic devices due to their low toxicity and improved stability. However, efficiency 2DRP Sn PSCs has not made a breakthrough owing incompletely oriented crystal growth poor film morphology, which is limited by complex uncontrollable crystallization process. Here, we first introduce mixed spacer organic cations [n-butylamine (BA)...
Surface effects usually become negligible on the micrometer or sub-micrometer scale due to lower surface-to-bulk ratio compared nanomaterials. In lead halide perovskites, however, their "soft" nature renders them highly responsive external field, allowing for extended depth affected by surface. Herein, taking advantage of this unique feature perovskites we demonstrate a methodology property manipulation perovskite thin films based secondary grain growth, where tuning surface induces internal...