A5047899960- Perovskite Materials and Applications
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- TiO2 Photocatalysis and Solar Cells
- Advanced Thermoelectric Materials and Devices
- Advanced Photocatalysis Techniques
- Solid-state spectroscopy and crystallography
- Organic Light-Emitting Diodes Research
- Advancements in Photolithography Techniques
- Organic Electronics and Photovoltaics
- Industrial Vision Systems and Defect Detection
- Integrated Circuits and Semiconductor Failure Analysis
- Thermal properties of materials
- Advanced Nanomaterials in Catalysis
- Electron and X-Ray Spectroscopy Techniques
- Biliary and Gastrointestinal Fistulas
- Advanced battery technologies research
- Infrared Target Detection Methodologies
- Advanced Semiconductor Detectors and Materials
- Shape Memory Alloy Transformations
- Algorithms and Data Compression
- Thermal Expansion and Ionic Conductivity
- Artificial Intelligence in Healthcare
- Advanced Neural Network Applications
University of Electro-Communications
2019-2025
Madan Mohan Malaviya University of Technology
2025
Advanced Materials and Processes Research Institute
2023
Institute for Learning Innovation
2019-2022
VI Manufacturing (United States)
2019-2022
Command Hospital
2019-2021
Armed Forces Medical College
2019-2021
Creative Commons
2021
Kyushu Institute of Technology
2014-2020
The University of Kitakyushu
2014-2019
According to the detailed balanced limit for a single-junction solar cell, tin–lead (Sn–Pb) perovskite cells (PSCs) can achieve power conversion efficiencies (PCEs) more than Pb-PSCs. However, rise in PCE of Sn–Pb PSCs is limited by choice hole transport layer PEDOT:PSS only. Inspired use selective monolayers (HSM) Pb only PSCs, here, we employed 2-(9H-carbazol-9-yl) ethyl] phosphonic acid (2PACz), leading (21.39%) comparable fabricated on conventional (21.37%). Moreover, reported small...
Abstract Tin‐lead perovskite solar cells (PSCs) show inferior power conversion efficiency (PCE) than their Pb counterparts mainly because of the higher open‐circuit voltage ( V oc ) loss. Here, it is revealed that p‐type surface transforms to n‐type, based on post‐treatment by a Lewis base, ethylenediamine. This approach forms graded band structure owing rise Fermi‐energy level at layer, and increases built‐in potential from 0.56 0.76 V, which more 100 mV. It demonstrated EDA can lower...
Abstract This study is on the enhancement of efficiency wide bandgap (FA 0.8 Cs 0.2 PbI 1.8 Br 1.2 ) perovskite solar cells (PSCs) used as top layer perovskite/perovskite tandem cell. Poly[bis(4‐phenyl) (2,4,6‐trimethylphenyl) amine] (PTAA) and monomolecular called SAM are effective hole collection layers for APbI 3 PSCs. However, these transport (HTL) do not give high efficiencies FA It found that surface‐modified PTAA by (MNL) improves The improved explained film quality, decreased...
Abstract Many efforts have been made towards improving perovskite (PVK) solar cell stability, but their thermal particularly at 85 °C (IEC 61646 climate chamber tests), remains a challenge. Outdoors, the installed temperature can reach up to °C, especially in desert regions, providing sufficient motivation study effect of stress or above this (e.g., 100 °C) confirm commercial viability PVK cells for industrial companies. In work, three‐layer printable HTM‐free CH 3 NH PbI with mesoporous...
Sn-based perovskite solar cells (S-PSCs) are a promising candidate to replace toxic Pb-based PSCs. For promoting their industrial application, developing inorganic substitutions of unstable poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) is also an important part due its intrinsic stability and low cost. Here, we in situ prepared ambipolar SnOx by simple fast plasma-assistant strategy (P-SnOx). The as-prepared P-SnOx works as hole transport layer directly, yielding 10.89 ±...
The photoelectric properties of nontoxic Sn-based perovskite make it a promising alternative to toxic Pb-based perovskite. It has superior photovoltaic performance in comparison other Pb-free counterparts. facile oxidation Sn2+ Sn4+ presents notable obstacle the advancement solar cells that utilize Sn, as adversely affects their stability and performance. study revealed presence concentration on both upper lower surfaces layer. This discovery led adoption bi-interface optimization approach....
Self-assembled molecules (SAMs) have been widely employed as hole transport layers (HTLs) that can improve the power conversion efficiency (PCE) of perovskite solar cells (PSCs). However, few SAMs are effective for wide band gap (WBG; Eg = 1.77 eV) PSCs. We found [3-[4-(diphenylamino)phenyl]-9H-carbazol-9-yl]propylphosphonic acid (4dp3PACz) working a monomolecular HTL is WPG (FA0.8Cs0.2PbI1.8Br1.2) The 4dp3PACz improved quality film and reduced defect density film, which nonradiative...
Research of CH3NH3PbI3 perovskite solar cells had significant attention as the candidate new future energy. Due to toxicity, however, lead (Pb) free photon harvesting layer should be discovered replace present perovskite. In place lead, we have tried antimony (Sb) and bismuth (Bi) with organic metal monovalent cations (CH3NH3 +, Ag+ Cu+). Therefore, in this work, lead-free photo-absorber layers (CH3NH3)3Bi2I9, (CH3NH3)3Sb2I9, (CH3NH3)3SbBiI9, Ag3BiI6, Ag3BiI3(SCN)3 Cu3BiI6 were processed by...
Tin-doped indium oxide (ITO) sputtering is known as a damaging cause on organic hole transporting material in solar cells. In order to gain more insights into the reasons for poor device performance of perovskite cells by ITO Spiro-OMeTAD, here we present an in-depth study I–V simulation analysis using corresponding equivalent circuit models. First, experimental data were obtained with ⟨FTO/TiO2(dense)/TiO2(mesoporous)/CH3NH3PbI3/Spiro-OMeTAD/ITO/Au⟩ configuration. An Au layer (t = 50 nm)...
Lead-free tin perovskite solar cells (PKSCs) have attracted tremendous interest as a replacement for toxic lead-based PKSCs. Nevertheless, the efficiency is significantly low due to rough surface morphology and high number of defects, which are caused by fast crystallization easy oxidization. In this study, facile universal posttreatment strategy sequential passivation with acetylacetone (ACAC) ethylenediamine (EDA) proposed. The results show that ACAC can reduce trap density enlarge grain...
Further improvement of the performance and stability inverted perovskite solar cells (PSCs) is necessary for commercialization. Here, ferrocene derivative dibenzoylferrocene (DBzFe) used as an additive to enhance MA- Br- free PSCs. The results show that introduction DBzFe not only passivates defects in film but also inhibits ion migration film. final device achieves a power conversion efficiency (PCE) 23.53%, which one highest efficiencies currently based on self-assembled monolayers (SAMs)....
Abstract All‐perovskite tandem solar cells are regarded as the next generation of devices capable enhancing energy utilization rate. Unlike single‐junction perovskite (PSCs), efficacy is contingent upon performance both top and bottom cells. In this study, we employed a simultaneous co‐modification strategy to incorporate phenylethylammonium iodide (PEAI) at interfaces film, aiming boost cell's performance. Both experimental theoretical findings indicate that PEAI not only elevates film...
Abstract The photoelectric properties of nontoxic Sn‐based perovskite make it a promising alternative to toxic Pb‐based perovskite. It has superior photovoltaic performance in comparison other Pb‐free counterparts. facile oxidation Sn 2+ 4+ presents notable obstacle the advancement solar cells that utilize Sn, as adversely affects their stability and performance. study revealed presence concentration on both upper lower surfaces layer. This discovery led adoption bi‐interface optimization...
Flexible perovskite solar cells (PSCs) is being reported on different kinds of indium tin oxide (ITO)‐coated flexible substrates such as polyethylene terephthalate (PET) and naphthalate (PEN) with varying sheet resistance. High resistance low transmittance these in comparison to glass‐ITO based rigid substrate are among the major issues achieving high power conversion efficiency (PCE), especially large active area due considerably fill factor (FF) values. With a small cell 0.1 cm 2 , it...
Despite lead halide perovskite(top)/silicon(bottom) tandem solar cell achieving >29% efficiency, the toxicity of limits adoption perovskites in electronic devices. To solve this problem, tin perovskite has been suggested as an alternative candidate to be used top cell. However, most reports on cells are based narrow band gap materials (band gap: 1.20–1.40 eV), which not suitable In addition, efficiency previously reported wide lead-free is satisfactory, shown less than 2.00%. This study...
Overcoming Voc loss to increase the efficiency of perovskite solar cells (PSCs) has been aggressively studied. In this work, we introduce and compare rubidium iodide (RbI) potassium (KI) alkali metal halides (AMHs) as dopants in a tin-lead (SnPb)-based system improve performance PSCs by enhancing their Voc. Improvement terms surface morphology, crystallinity, charge transfer, carrier transport SnPb perovskites was observed with addition AMH dopants. Significant power conversion improvement...
Abstract Lead‐free tin perovskite solar cells (PKSCs) have attracted tremendous interest as a replacement for toxic lead‐based PKSCs. Nevertheless, the efficiency is significantly low due to rough surface morphology and high number of defects, which are caused by fast crystallization easy oxidization. In this study, facile universal posttreatment strategy sequential passivation with acetylacetone (ACAC) ethylenediamine (EDA) proposed. The results show that ACAC can reduce trap density...
Less-toxic tin-based perovskite materials have received more attention because they are a potential alternative to toxic Pb-based materials. However, the device performance of Sn-based solar cells is still far behind that their counterparts. In addition easy oxidation Sn2+ and fast crystallization, energy level mismatch other important factor inhibiting improvement performance. study, we synthesized new material, 5-mercapto-1-methyltetrazole tin salt, SnT2, as regulator perovskites. The...
In this article, we demonstrate for the first time a mesoscopic printable perovskite solar cell (PSC) using NiO as hole transporting material and low-temperature processed carbon counter electrode. A single deposition method assisted by N2 blow drying was used of MAPbI3 on TiO2/ZrO2/NiO screen-printed As final step processing (i.e. 75 °C) layer fabricated blade coating method. It is found that capping thickness has significant effect device efficiency, especially when introduced into...