Results 101 to 110 of about 3,584 (216)

Perfluoroarene‐Based Tin Halide Perovskite Photovoltaics

open access: yesAdvanced Energy & Sustainability Research
Hybrid halide perovskites are among the most promising candidates for next‐generation photovoltaics. The most investigated perovskite solar cells are lead based, which poses environmental concerns, making finding sustainable alternatives a pressing issue.
Mengqiong Zhu   +17 more
doaj   +1 more source

Complete structure and cation orientation in the perovskite photovoltaic methylammonium lead iodide between 100 and 352 K

open access: yesChemical Communications, 2015
Neutron diffraction shows the methylammonium cation in the photovoltaic [CH3NH3]PbI3 demonstrates increasing positional disorder on heating from 100 K to 352 K.
Mark T, Weller   +4 more
openaire   +3 more sources

New‐Generation Integrated Devices: Multiple‐Energy Utilization and Integration Systems Based on Perovskite Photovoltaics

open access: yesEcoEnergy, EarlyView.
This review highlights emerging integrated energy systems based on perovskite photovoltaics, including PSC–thermoelectric, photovoltaic–electrochemical, self‐charging, and building‐integrated architectures. By coupling multiple energy conversion and storage pathways, these multifunctional platforms enable enhanced solar utilization, improved stability,
Yihuai Huang   +10 more
wiley   +1 more source

Water Infiltration in Methylammonium Lead Iodide Perovskite: Fast and Inconspicuous [PDF]

open access: yes, 2015
While the susceptibility of CH3NH3PbI3 to water is well-documented, the influence of water on device performance is not well-understood. Herein, we use infrared spectroscopy to show that water infiltration into CH3NH3PbI3 occurs much faster and at a ...
Pucci, Annemarie   +35 more
core   +2 more sources

Bandgap Engineering via Doping Strategies for Narrowing the Bandgap below 1.2 eV in Sn/Pb Binary Perovskites: Unveiling the Role of Bi3+ Incorporation on Different A-Site Compositions

open access: yesNanomaterials
The integration of perovskite materials in solar cells has garnered significant attention due to their exceptional photovoltaic properties. However, achieving a bandgap energy below 1.2 eV remains challenging, particularly for applications requiring ...
Jeong-Yeon Lee   +3 more
doaj   +1 more source

Enhancing the Ferroelectricity of MAPbI3 via Hydroxyl Groups to Boost Photocatalytic Performance

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The hydroxyl groups in (EOA)2PbBr4 enable a rearrangement of the polar MA+ ions in MAPbI3, which enhances the Ps‐electric field and promotes the separation of photogenerated carriers. Consequently, the (EOA)2PbBr4/MAPbI3 composite exhibits the enhanced CO production yield in photocatalytic CO2 reduction reactions.
Zhaohui Fang   +6 more
wiley   +1 more source

Eliminating Halogen Vacancies Enables Efficient MACL‐Assisted Formamidine Perovskite Solar Cells

open access: yesAdvanced Science
Methylammonium chloride (MACl) additive is almost irreplaceable in high‐performance formamidine perovskite photovoltaics. Nevertheless, Some of the problems that can arise from adding MACl are rarely mentioned.
Zhiyong Liu   +10 more
doaj   +1 more source

Managing Crystallization in Tin‐Lead Perovskite Solar Cells via Differential Chelating Coordination

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A chelation‐mediated crystallization strategy is developed for Sn–Pb perovskites using 1,10‐phenanthroline. Stronger coordination with Sn than Pb helps reconcile their mismatched crystallization behavior, leading to improved crystalline quality, fewer defects, and reduced oxidation.
Zihao Feng   +9 more
wiley   +1 more source

Lead‐free halide perovskites for efficient light‐emitting devices

open access: yesFlexMat, EarlyView.
Overview of Lead‐free metal halide perovskites with different categories and optoelectronic application directions, including solid‐state lighting, light‐emitting diodes, piezoluminescence, flexible electronics, scintillators and CPL emitters. Abstract Lead halide perovskites exhibit promising optoelectronic properties for optoelectronic applications ...
Yueqi Shen   +9 more
wiley   +1 more source

Illuminating the Devolution of Perovskite Passivation Layers

open access: yesSmall Structures
Surface treatment of perovskite materials with their layered counterparts has become an ubiquitous strategy for maximizing device performance. While layered materials confer great benefits to the longevity and long‐term efficiency of the resulting device
Marcin Giza   +13 more
doaj   +1 more source

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