A5082628802- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Advanced battery technologies research
- Organic Electronics and Photovoltaics
- MXene and MAX Phase Materials
- Photoreceptor and optogenetics research
- Advanced Memory and Neural Computing
- Organic Light-Emitting Diodes Research
- Neural Networks and Reservoir Computing
- Advanced Sensor and Energy Harvesting Materials
- Carbon and Quantum Dots Applications
- 2D Materials and Applications
- Advanced Photocatalysis Techniques
- Thin-Film Transistor Technologies
- Gas Sensing Nanomaterials and Sensors
- Silicon and Solar Cell Technologies
- Nanomaterials and Printing Technologies
- Supercapacitor Materials and Fabrication
- Solid-state spectroscopy and crystallography
Suzhou Institute of Nano-tech and Nano-bionics
2020-2025
Chinese Academy of Sciences
2020-2025
Åbo Akademi University
2024-2025
University of Science and Technology of China
2021-2022
Hefei University
2021
Abstract The wide‐bandgap perovskite solar cell is a crucial part of perovskite/silicon tandem cells, which offer an avenue for surpassing the power conversion efficiency (PCE) limit single‐junction silicon cells. However, actual such cells today diminished by nonradiative recombination losses in subcells. Here, this work reports grain regrowth and bifacial passivation (GRBP) strategy to reduce at boundaries perovskite/charge transport layer interfaces simultaneously. This achieved...
Oxidation of solar cells leads to Li<sup>+</sup> ion diffusion, which increases the conductivity Spiro-OMeTAD layer and built-in potential within cells. The synergetic effects improve charge injection at both interfaces device performance.
Abstract At present, the dominating electron transport material (ETL) and hole (HTL) used in state‐of‐the‐art perovskite solar cells (PSCs) are tin oxide 2,2′,7,7′‐tetrakis(N,N‐di‐p‐methoxyphenyl‐amine)‐9,9′‐spirobifluorene (Spiro‐OMeTAD). However, surface hydroxyl groups of SnO 2 layer Li + ions within Spiro‐OMeTAD HTL generally cause charge recombination migration, significantly reducing devices' performance stability. Here, a molecule bridging 3,5‐bis(fluorosulfonyl)benzoic acid (FBA) is...
The p-i-n type perovskite solar cells with a nickel oxide (NiOx) hole transport layer in combination self-assembled monolayers (SAMs) have high power conversion efficiency (PCE) of over 26%. surface properties the SAM significant impact on growth and crystallization film. In meanwhile, defects formed during thermal annealing at interface would act as charge recombination centers, decreasing device performance stability. To address these issues, this work introduces...
An appropriate electron transport layer (ETL) with better energy alignment and enhanced charge transfer, thereby helping efficient extraction of photogenerated carriers, is essential to achieve the creation high-performance devices. In this work, we use functionalized MXene modified fluoroalkylsilane dodecyltrimethoxysilane molecules, denoted as SnO2-MF SnO2-MH, nanosheet dopants in SnO2 ETL. From density functional theory (DFT) calculations ultraviolet photoelectron spectra (UPS) spectra,...
Abstract Perovskite solar cells (PSCs) longevity is nowadays the bottleneck for their full commercial exploitation. Although lot of research ongoing, initial decay output power – an effect known as “burn‐in” degradation happening in first 100 h still unavoidable, significantly reducing overall performance (typically >20%). In this paper, origin n‐i‐p type PSCs demonstrated that directly related to Li + ions migration coming from SnO 2 electron transporting layer visualized by...
Interface engineering is the core of device optimization, and this particularly true for perovskite photovoltaics (PVs). The steady improvement in their performance has been largely driven by careful manipulation interface chemistry to reduce unwanted recombination. Despite that, PVs devices still suffer from unavoidable open circuit voltage (V
Abstract Transparent conductive oxide (TCO)‐coated glasses are the most expensive and environmentally impacting components of perovskite solar cells (PSCs), comprising 56% total cost a module 96% its carbon footprint. Thus, recycling TCO from end‐of‐life modules can reduce both their levelized electricity energy payback time. In this work, tin (SnO 2 )‐coated indium refurbished n‐i‐p PSCs employing dimethyl sulfoxide as green solvent to dissolve upper layers devices. Employing recovered...
Controlling crystal growth alignment in low-dimensional perovskites (LDPs) for solar cells has been a persistent challenge, especially low-n LDPs (n < 3, n is the number of octahedral sheets) with wide band gaps (>1.7 eV) impeding charge flow. Here we overcome such transport limits by inducing vertical through addition chlorine to precursor solution. In contrast 3D halide (APbX3), find that Cl substitutes I equatorial position unit cell, strain perovskite octahedra, and critical initiating...
Abstract The n‐i‐p type perovskite solar cells suffer unpredictable catastrophic failure under operation, which is a barrier for their commercialization. fluorescence enhancement at Ag electrode edge and performance recovery after cutting the off prove that shunting position mainly located of device. Surface morphology elemental analyses corrosion diffusion + ions on aged cells. Moreover, much condensed larger clusters are formed MoO 3 layer. Such contrast also observed while comparing...
Perovskite solar cells (PSCs) have attracted substantial research interest owing to their flexible fabrication, high efficiency, and low cost. Currently, the power conversion efficiency (PCE) of PSCs has reached 25.7%, meeting requirements for commercialization. In recent years, as a novel type carbon nanomaterial, dots (CDs) with abundant tunable surface functional groups shown great potential in regulating stability because photovoltaic properties, photochemical stability, energy...
Defect‐mediated recombination losses limit the open‐circuit voltage ( V OC ) of perovskite solar cells (PSCs), negatively affecting device's performance. Bulk and dimensional engineering have both been reported as promising strategies to passivate shallow defects, thus improving photovoltaic conversion efficiency (PCE). Here, a combined bulk surface treatment employing chlorine‐based compounds is employed. Methylammonium chloride (MACl) used additive, while 4‐methylphenethylammonium...
In inverted (p‐i‐n) perovskite solar cells (PSCs), the buried interface of has been a thorny issue due to difficulty forming good interfacial contact between hole‐transporting layer (HTL) and perovskite. Here, cross‐linkable is induced in p‐i‐n PSCs modify The copolymerized with pentaerythritol tetrakis(3‐mercaptopropionate) (PETMP) triallyl isocyanato (TAIC) form cross‐linked‐PETMP‐TAIC. After thermal treatment at 100 °C, vinyl group TAIC can react thiol PETMP cross‐linked network. It found...
Environmental needs and international regulations urgently ask for a robust practice the recycling reusing of critical components perovskite solar cells (PSCs) to reduce primary material demand energy consumption.
Although perovskite solar cells have shown high power conversion efficiency, performance stability is still insufficient. Herein, the decay kinetics of p–i–n type under light illumination monitored. It found that degradation mainly caused by decrease in short‐circuit current ( J SC ), which directly related to loss active area. Secondary ion mass spectrometry (SIMS) analysis confirms both CH 3 NH + and I − migrate toward metal electrode during aging through thin PC 61 BM layer. Atomic force...
Abstract Solution-processed top electrode is the key technology for realization of fully solution-processed perovskite solar cells (PSCs). In this paper, we reported preparation fully-solution processed n-i-p type PSCs with spray-coated silver nanowires (AgNWs) electrode. Experiment results demonstrated that low power conversion efficiency (PCE) 16.00% a fill factor 67.41% was obtained reference cell, when AgNWs directly coated on...