Mohammad Khaja Nazeeruddin

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Recent advancements in perovskite solar cells (PSCs) have marked a transformative milestone in photovoltaics, offering innovative and cost‐effective solutions for efficient energy generation. However, challenges related to stability have impeded their commercialization. To address these challenges, researchers have focused on approaches like interfacial and structural engineering, particularly in the development of efficient hole transport materials (HTMs). Additionally, side‐chain engineering of HTMs plays

We report a facile synthetic route to obtain functionalized quaterpyridine ligand and its trans-dithiocyanato ruthenium complex, based on a microwave-assisted procedure. The ruthenium complex has been purified using a silica chromatographic column by prote ...

We investigate a set of donor-pi-acceptor (D-pi-A) dyes with new acceptor groups for dye-sensitized solar cells, using time-dependent density-functional-theory calculations of the electronic structure and optical absorption. We considered three types of mo ...

Spatially resolved photoluminescence (PL) and electroluminescence (EL) imaging technologies play a crucial role in evaluating the performance and stability of photovoltaic devices. However, their application in perovskite devices presents unique challenges ...

Precise control over cation distribution is critical for high‐performance perovskite solar cells (PSCs). Conventional bulk doping often leads to vertical segregation and lattice strain, while surface passivation dose not ensure bulk homogeneity. We introduce a triple‐alkali interlayer (LiOH/KCl/CsI) deposited on the electron transport layer prior to crystallization of the perovskite film. This design spatially decouples crystallization regulation from compositional modulation, i.e., localized Li + and K + i

Solution-processed lead-free halide perovskite gas sensors possess low gas detection limits, offering promising alternatives to traditional metal oxide chemiresistors. However, halide perovskite chemiresistors often suffer from poor selectivity and durabil ...

Dye-sensitized solar cells (DSC) represent a valuable, efficient, and low-cost alternative to conventional semiconductor photovoltaic devices. A deeper understanding of the interactions at the dye/semiconductor heterointerface is fundamental for future pro ...

Exploration of new ruthenium-based sensitizers for dye-sensitized solar cell (DSC) applications requires an easy access to multifunctionalized ligands for efficient screening of sensitizers' properties. Based on the Horner-Emmons-Wadsworth reaction, a conv ...

Transition metal chalcogenide crystalline films FeSe2, Cu1.8S, and CuSe have been deposited from solution by drop casting their dissolved inks onto a conductive substrate, followed by a mild thermal treatment. We demonstrate that the resulting chalcogenide ...

Ternary chalcogenide AgBiS 2 nanocrystals have emerged as an environmentally friendly and stable material for ultra-thin film lightweight low-cost solar cells. However, their development is currently limited by the poor charge transport characteristics, mainly due to low carrier mobility and the prevalence of surface defects. This leads to a short carrier diffusion length, which severely restricts the thickness of the photoactive layer and the absorption of near-infrared photons. Here, we demonstrate ligand

Solution‐processed perovskite solar cells have significant potential for large‐scale manufacture, but the production of perovskite film with high crystallinity over large areas remains a major challenge. Here, a fluorine‐containing hyperbranched polymer is shown for meticulous control of the perovskite film crystallization. Synergistic coordination of functional fluorine groups and perovskite species constrains the complex intermediate phases and facilitates the formation of spatially oriented perovskite fi

2D hybrid perovskites (2DP) are versatile materials, whose electronic and optical properties can be tuned through the nature of the organic cations (even when those are seemingly electronically inert). Here, it is demonstrated that fluorination of the orga ...

The concept of IoT-based Smart Cities has gained momentum in recent years. The research in this domain has focused on modeling key characteristics of future smart cities along with exploring their design and implementation aspects from multiple perspective ...

The emergence of metal halide perovskite materials has triggered a revolutionary change in optoelectronic devices. Due to their outstanding optoelectronic properties and defect tolerance, metal halide perovskites can be used for a wide range of application ...

Significant advancements have been made in the development of high-performance cadmium telluride (CdTe)-based thin film solar cells. However, studies examining the transient excited-state charge dynamics, which determine the final steady-state device perfo ...

Organic-inorganic lead halide perovskites have recently received significant attention as active materials for high-performance photovoltaics and photo-detectors. However, the understanding of their operation mechanism remains limited. High-gain, low-volta ...

The surface, interface, and bulk properties are a few of the most critical factors that influence the performance of perovskite solar cells. The photoelectron spectroscopy (PES) is used as a technique to analyze these properties. However, the information d ...

By two‐step sequential Pb2+ adsorption and reaction with methylammonium‐iodide (MAI) or ‐bromide (MABr) at a low concentration level of 0.06–0.10 m over mesoporous TiO2 or ZrO2 film, a well‐defined nanoscale CH3NH3PbI3 (MAPbI3) photosensitizer or CH3NH3PbB ...

The quest for lead-free light-absorbing perovskite materials has long been the target of researchers to make the 'star' material friendly to the commercial market. After a summary of different lead-free solar absorbers, we demonstrate a zero-dimensional io ...

Chemical bath deposition (CBD) is an effective technique used to produce high-quality SnO2 electron transport layers (ETLs) employed in perovskite solar cells (PSCs). By optimizing the CBD process, high-quality SnO2 films are obtained with minimal oxygen v ...

Mohammad Khaja Nazeeruddin

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Advances in Side‐Chain Engineering of Triarylamine and Thienyl‐Based Hole Transport Materials for Perovskite Solar Cells

A Simple Synthetic Route to Obtain Pure Trans-Ruthenium(II) Complexes for Dye-Sensitized Solar Cell Applications

Design of Dye Acceptors for Photovoltaics from First-Principles Calculations

Anomalous Electroluminescence Characteristics of Perovskite Modules

Decoupling Bulk Homogenization and Interfacial Reconstruction via a Triple‐Alkali‐Cation Interlayer for High‐Performance Perovskite Solar Cells

Covalent Organic Framework-Enhanced Metal Halide Perovskites for Selective and Sensitive Gas Sensing

High Open-Circuit Voltages: Evidence for a Sensitizer-Induced TiO2 Conduction Band Shift in Ru(II)-Dye Sensitized Solar Cells

Convenient synthesis of functionalized 4,4 '-disubstituted-2,2 '-bipyridine with extended pi-system for dye-sensitized solar cell applications

Low-temperature, solution-deposited metal chalcogenide films as highly efficient counter electrodes for sensitized solar cells

Molecular lead halide perovskite layer bridged AgBiS2 nanocrystals for efficient thin film solar cells

Oriented Crystallization of Perovskite Film via Fluorine‐Containing Hyperbranched Polymer for Efficient and Stable Perovskite Solar Cells

Spatial Charge Separation as the Origin of Anomalous Stark Effect in Fluorous 2D Hybrid Perovskites

Formal Analysis of Human-Assisted Smart City Emergency Services

Versatile self-assembled monolayers for perovskite-based optoelectronic devices

Charge Extraction and Recombination Dynamics of CdSe/CdTe Solar Cells Studied with Transient Photovoltage/Photocurrent Techniques

Working Principles of Perovskite Photodetectors: Analyzing the Interplay Between Photoconductivity and Voltage-Driven Energy-Level Alignment

Surface, Interface, and Bulk Electronic and Chemical Properties of Complete Perovskite Solar Cells: Tapered Cross-Section Photoelectron Spectroscopy, a Novel Solution

A Facile Preparative Route of Nanoscale Perovskites over Mesoporous Metal Oxide Films and Their Applications to Photosensitizers and Light Emitters

Zero-dimensional hybrid iodobismuthate derivatives: from structure study to photovoltaic application

Enhancing the Efficiency and Stability of Perovskite Solar Cells Using Chemical Bath Deposition of SnO2 Electron Transport Layers and 3D/2D Heterojunctions