A5071499371- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Organic Electronics and Photovoltaics
- Solid-state spectroscopy and crystallography
- Organic Light-Emitting Diodes Research
- Nanowire Synthesis and Applications
- 2D Materials and Applications
- Organic and Molecular Conductors Research
- Efficiency Analysis Using DEA
- Customer Service Quality and Loyalty
- Thin-Film Transistor Technologies
- Graphene research and applications
- ZnO doping and properties
- Nanomaterials for catalytic reactions
- Covalent Organic Framework Applications
- Ferroelectric and Piezoelectric Materials
- Layered Double Hydroxides Synthesis and Applications
- Management and Performance Evaluation
- Optical properties and cooling technologies in crystalline materials
- Acoustic Wave Resonator Technologies
- Advancements in Battery Materials
- Advanced Memory and Neural Computing
- Consumer Retail Behavior Studies
Massachusetts Institute of Technology
2018-2023
Sharif University of Technology
2005-2022
Pandit Deendayal Petroleum University
2022
University of Tehran
2018-2019
École Polytechnique Fédérale de Lausanne
2018
Laboratoire d'Informatique Fondamentale de Lille
2018
Charles Humbert 8
2018
University of Hong Kong
2015
Hong Kong University of Science and Technology
2015
Iran University of Science and Technology
2014
Abstract Interfacial studies and band alignment engineering on the electron transport layer (ETL) play a key role for fabrication of high‐performance perovskite solar cells (PSCs). Here, an amorphous SnO 2 (a‐SnO ) between TiO ETL absorber is inserted charge properties device are studied. The double‐layer structure compact (c‐TiO a‐SnO leads to modification interface energetics, resulting in improved collection decreased carrier recombination PSCs. optimized based /c‐TiO shows maximum power...
Abstract The presence of surface and grain boundary defects in organic–inorganic halide perovskite films can be detrimental to both the performance operational stability solar cells (PSCs). Here, effect chloride additives is studied on bulk mixed cation PSCs. It found that using an antisolvent technique, film divided into two layers, i.e., a bottom layer with large grains thin capping small grains. addition formamidinium (FACl) precursor solution removes small‐grained suppresses formation...
Abstract The presence of bulk and surface defects in perovskite light harvesting materials limits the overall efficiency solar cells (PSCs). formation such is suppressed by adding methylammonium chloride (MACl) as a crystallization aid to precursor solution realize high‐quality, large‐grain triple A‐cation films that are combined with judicious engineering interface electron hole selective contact materials. A planar SnO 2 /TiO double layer oxide introduced ascertain fast extraction facing...
Interface engineering in organometal halide perovskite solar cells (PSCs) has been an efficient tool to boost the performance and stability of photovoltaic (PV) devices.
Non-radiative recombination losses are reduced drastically by addition of adamantylammonium iodide (ADAHI) into the hole transporting layer (HTL) in a perovskite solar cell, resulting high efficiency (∼22%), increased <italic>V</italic><sub>oc</sub> up to 1245 mV, and enhanced electro-luminescence EQE 2.5%.
Abstract Passivation of electronic defects is an effective strategy to boost the performance and operational stability perovskite solar cells (PSCs). Identifying molecular materials that achieve this purpose a key target current research efforts. Here, adamantane (AD) 1‐adamantylamine (ADA) are introduced as modulators abate present within bulk at perovskite–hole conductor interface. To effect, modulator added either into antisolvent (AS) precipitate it together with (AS method) or they spin...
The role of anti-solvent treatment on the morphological and optoelectronic properties multiple-cation mixed-halide perovskite solar cells have been studied.
Interface engineering of solar cell device is a prominent strategy to improve the performance. Herein, we synthesize reduced-graphene scaffold (rGS) by using new and simple chemical approach. In this regard, hollow structure graphene then fabricate three-dimensional with superior surface area electrophoretic process. We employ as an interface layer between electron transfer absorber layers in perovskite cell. The characterization tests photovoltaic results show that rGS improves carrier...
For semicrystalline poly(3,4-ethylene dioxythiophene) (PEDOT), oxidative chemical vapor deposition (oCVD) enables systematic control over the b-axis lattice parameter (π-π stacking distance). Decreasing increases charge transfer integral, thus enhancing intracrystallite mobility. To reduce barrier to intercrystallite transport, oCVD conditions were tailored produce pure face-on crystallite orientation rather than more common edge-on orientation. The oriented PEDOT with lowest displayed...
The B-site doping strategy ranks as a powerful approach to improve the photovoltaic performance and stability of perovskite solar cells. This article reviews key roles in all-inorganic films.
Abstract Here, highly efficient and stable monolithic (2‐terminal (2T)) perovskite/PbS quantum dots (QDs) tandem solar cells are reported, where the perovskite cell (PSC) acts as front PbS QDs device with a narrow bandgap back cell. Specifically, ZnO nanowires (NWs) passivated by SnO 2 employed an electron transporting layer for PSC cell, leading to single maximum power conversion efficiency (PCE) of 22.15%, which is most NWs‐based PSCs in literature. By surface passivation CdCl , QD devices...
Abstract Zinc oxide (ZnO) is a promising electron‐transport layer (ETL) in thin‐film photovoltaics. However, the poor chemical compatibility between commonly used sol–gel‐derived ZnO nanostructures and organo–metal halide perovskites makes it highly challenging to obtain efficient stable perovskite solar cells (PSCs). Here, novel approach reported for low‐temperature processed pure ETLs planar heterojunction PSCs based on quantum dots (QDs) stabilized by dimethyl sulfoxide (DMSO) as easily...
The recent advances in lead-free perovskites (LFP) for solar cell applications have been discussed and their properties are compared with lead-based perovskites. In addition, reasons low efficiency of LFP comprehensively discussed.
Down-shifting QDs together with moisture-assisted film growth enable a highly efficient and stable inverted perovskite solar cell efficiency of over 20%.
Abstract Solution‐processed perovskite quantum dots (QDs) are promising candidates for fabrication of semitransparent and tandem solar cells due to the bandgap tunability. In this work, cesium lead triiodide (CsPbI 3 ) QDs synthesized with a stable cubic phase efficient (PSCs) fabricated using ligand exchange technique. Monolayer graphene is grown by chemical vapor deposition technique dry process transfer on top device developed. Based approach, an inverted PSC demonstrated high average...
Surface passivation of organic–inorganic halide perovskites (OIHPs) is a crucial step to annihilate the surface defects and control deteriorated ion migration phenomenon. Here, we study role lead sulfate (PbSO4) as an effective passivator in OIHP single crystals (SCs). Using impedance spectroscopy, evaluate electrical properties sulfate-passivated methylammonium tri-bromide (MAPbBr3) SCs. We found that low-frequency response assigned ionic motion MAPbBr3 SC strongly affected by inorganic...
Abstract A roll‐to‐roll (R2R) transfer technique is employed to improve the electrical properties of transferred graphene on flexible substrates using parylene as an interfacial layer. layer deposited graphene/copper (Cu) foils grown by chemical vapor deposition and are laminated onto ethylene vinyl acetate (EVA)/poly(ethylene terephthalate). Then, samples delaminated from Cu electrochemical process, resulting in conductive with sheet resistances below 300 Ω sq −1 , which significantly...
Abstract Interfacial engineering between the perovskite and hole transport layers has emerged as an effective way to improve solar cell (PSC) performance. A variety of organic halide salts are developed passivate traps enhance charge carrier transport. Here, use guanidinium iodide (GuaI) for interfacial modification mixed‐cation (Cs) x (FA) 1− PbI 3 films, which results in formation a low‐dimensional δ‐FAPbI ‐like phase on 3D surface, is reported. The presence this thin layer facilitates...
The fabrication of efficient perovskite solar cells (PSCs) using all‐vacuum processing is still challenging due to the limitations in vacuum deposition hole transporting layer (HTL). Herein, inverted PSCs copper (II) phthalocyanine (CuPC) as an ideal alternative HTL for are fabricated. After proper optimization, a PSC with power conversion efficiency (PCE) 20.3% achieved, which much better than PCEs (16.8%) devices solution‐based CuPC. As it takes long time dissolve CuPC device, evaporation...