A5032084380- Perovskite Materials and Applications
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- TiO2 Photocatalysis and Solar Cells
- Organic Light-Emitting Diodes Research
- Nanocluster Synthesis and Applications
- Chalcogenide Semiconductor Thin Films
- Carbon and Quantum Dots Applications
- Advanced Photocatalysis Techniques
- Electrochemical sensors and biosensors
- Oil, Gas, and Environmental Issues
- Silicon Nanostructures and Photoluminescence
- Atmospheric Ozone and Climate
- Atmospheric chemistry and aerosols
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Silicon and Solar Cell Technologies
- Transition Metal Oxide Nanomaterials
- Multimedia Learning Systems
- Advanced Nanomaterials in Catalysis
- Thermal Expansion and Ionic Conductivity
- Blockchain Technology in Education and Learning
- Advanced Sensor and Energy Harvesting Materials
- Ferroelectric and Piezoelectric Materials
King Abdullah University of Science and Technology
2022-2025
Korea Institute of Materials Science
2019-2023
Diponegoro University
2016-2022
Pukyong National University
2019-2021
Changwon National University
2019
Government of the Republic of Korea
2019
Organic, nonfullerene semiconductors capable of self-assembly and composed either anthraquinone (AQ) or naphthalenediimide (NDI) central fragments have been designed as electron-selective materials for n-i-p perovskite solar cells (PSCs). Both types self-assembled monolayer (SAM) molecules contain phosphonic acid an anchoring group, allowing covalent binding with indium tin oxide (ITO) surfaces. In particular, the NDI-based SAMs showed a more homogeneous on ITO substrate stronger band...
Self-assemble monolayers (SAMs) have become state-of-the-art hole-selective contacts for high-efficiency perovskite-based solar cells due to their easy processing, passivation capability, and low parasitic absorption. Nevertheless, the deposition of SAMs with a monolayer thickness high packing density on metal oxide substrates, critical challenges persist. To overcome these, study focuses impact annealing temperature - an intrinsic yet so far unexplored process parameter during formation...
Abstract Single‐junction perovskite solar cells (PSCs) have achieved certified power conversion efficiencies (PCEs) of 26.1%, which approaches their practical performance limit. Multi‐junction tandem can unlock even higher PCEs, where narrow‐bandgap lead‐tin (Pb‐Sn) perovskites, with a bandgap 1.21–1.25 eV, are well‐suited as the bottom photo absorber in all‐perovskite tandems. Bulk engineering and surface treatments Pb‐Sn perovskites using Lewis base molecules been shown to reduce defect...
A bilateral self-assembled monolayer (SAM) strategy is proposed to improve the performance of both opaque/translucent and rigid/flexible organic solar cells (OSCs), which have great potential for various high-value applications such as portable, building-integrated vehicle-integrated photovoltaics. By applying dipole-controlled SAMs ITO/ZnO ZnO/active layer interfaces, work function ZnO electron transport was reduced, improved charge reduced carrier recombination at interface. The opaque...
Abstract Molecular self‐assembled monolayers (SAMs), anchored on a transparent conductive oxide, serve as class of effective hole‐selective contacts in high‐performance lab‐scale perovskite solar cells (PSCs). However, scaling these SAM‐based PSCs to large‐area modules introduces challenges, such the de‐wetting ink glass around P1 scribe zones—a part module design – which compromises film uniformity and reproducibility. To overcome coverage anomalies, study incorporates...
This study aims to expand the practical applications of large-area flexible organic photovoltaics (OPV), such that they retain their high stability and efficiency even under various weather conditions external stresses. By developing polyethyleneimine derivative-based cathode interfacial layer (CIL) non-fullerene acceptor (NFA) material in OPVs, decrease rapidly due an undesirable interaction when these two materials are concomitantly applied. In this study, we designed a novel low-cost...
Abstract Effective charge carrier‐selective contacts are a crucial component of high‐performance crystalline silicon (c‐Si) solar cells. Organic materials deposited via self‐assembly on the c‐Si surface promising candidates for simplified, scalable, and cost‐effective processing extraction layers. This study investigates application n PACz self‐assembled monolayers (SAMs), based carbazole phosphonic acid groups, where (= 2, 4, or 6) is aliphatic chain length, to facilitate electron in cells...
Abstract Organic photovoltaics (OPVs) with nonfullerene acceptors (NFAs) feature excellent device performance and stability. However, they are facing problems when the amine‐rich polyelectrolytes used as cathode interfacial layers. In this work, a small molecule, ethanedithiol (EDT) at polyethyleneimine ethoxylated (PEIE)/active layer interface is inserted for mitigating undesirable reaction between groups electron‐acceptor moieties in NFA. The main role of EDT to passivate PEIE surface...
Fabricating efficient monolithic n–i–p perovskite/silicon tandem solar cells remains challenging, as evidenced by substantial recombination losses at the buried interface between NbOx electron transport layer (ETL) and perovskite. Herein, we introduce a self-assembled fullerene (C60-SAM) interlayer this interface, with large monovalent organic cation incorporated. We find enhances surface conductivity of ETL, mitigates recombination, reduces energetic mismatch overlying At device level,...
Abstract Solution-processed flexible organic optoelectronic devices have great potential as low-cost photovoltaics for energy harvesting, and in light-emitting diodes a lighting source. However, major challenge improving device performance stability is the different interfacial characteristics of hydrophobic layers hydrophilic transparent electrodes, particularly devices. Surface wetting controlled engineering can provide useful method to develop highly efficient Here, an unsaturated fatty...
A simple method was demonstrated for detecting cobalt ions based on the fluorescence quenching of carbon dots (CDots). The best quantum yield CDots synthesized by microwaving lime and methanolamine is 49.42%. detection range this research 0–200 μM with a limit 1.63 μM, respectively. Because interaction between functional groups metal ions, made from are more sensitive to than other oranges. This study presents platform demonstrating high sensitivity ion sensing using CDots. Overall, these...
The purpose of this study is to develop DSSC based on TiO2/MnO2 composite film as working electrode. electrodes were prepared by the doctor blade method and their characteristics investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD) UV-Vis spectroscopy. Moreover, performance DSSCs was performed under simulated AM 1.5G solar illumination 100 mW/cm2. indirect band gap TiO2 pure, 6% films are 3.29, 2.98 2.81 eV, respectively. highest power conversion 0.018 % which...
Although the efficiency improvement by research of interlayer and photo-active layer in field organic photovoltaics has been achieved, practical for commercialization to be applied a large area, flexible transparent module is still rare lagging behind. Herein, we present semitransparent area photovoltaic with high-performance engineering charge transport molecular linker as an interfacial layer. The insertion between electron transporting active led considerable increase power conversion...
Carbon quantum dots (CQDs or CDs) recently have attracted attention due to their unique optical and chemical properties. Herein we demonstrate a facile protocol synthesize CDs via the microwave-assisted method. In this research, use citric acid as carbon source urea nitrogen source. The UV-vis absorption of show two peaks at 326 408 nm respectively correspond π→π∗ transition C=C bonds n→π∗ C=O other on surface. solution emit green color emission wavelength 521 λexcitation = 365 nm), which...
The counter electrode using Carbon nanotube (CNT) has been successfully fabricated by the doctor blade method and their performances were investigated. We found that increasing mass of CNT powder in binder increases electrocatalytic activity which this beneficial to conversion efficiency Dye-sensitized solar cell (DSSC). photovoltaic performance DSSCs with 0.01, 0.02 0.04 gr obtained overall efficiencies 0.32%, 0.74% 0.91%, respectively. results suggest potential as alternative Pt free for DSSC.
Doping is a widely-implemented strategy for enhancing the inherent electronic properties of charge transport layers in photovoltaic devices. A facile solution-processed zinc oxide (ZnO) and various cation anion-doped ZnO were synthesized via sol-gel method employed as electron (ETLs) inverted polymer solar cells (PSCs). The results indicated that all PSCs with doped ETLs exhibited better performance compared pristine ETL. By exploring role anion dopants (three compounds same Al3+ cation:...
The electrocatalytic potential of carbon materials makes them the most viable candidate to replace Pt as a counter electrode (CE) in dye-sensitized solar cells (DSSCs). In this research, we report our study using graphite, CNT/graphite composite, CNT, and Pt-based CEs DSSCs. electrochemical impedance spectroscopy (EIS) measurement showed that CNT-based CE (CNT-CE) has lowest charge transport resistance (Rct) compared with graphite composite. photovoltaic performance CNT-CE resulted...
The coal used as a primary fuel in an Indonesian power plant produces sulfur dioxide emission from its burning process. Several testing and monitoring methods developed, laboratory analysis, CEMs based instrument, absorption spectroscopy method developed for this purpose. Differential Optical Absorption Spectroscopy (DOAS) on Lambert-Beer law quantification. DOAS instrumentation research to measure one of the parameters. Sulfur generated reaction between sulfuric acid dilute sodium sulfite....
Abstract Incorporating localized surface plasmon resonance (LSPR) into organic solar cells (OSCs) is a popular method for improving the power conversion efficiency (PCE) by introducing better light absorption. In this work, we designed one-pot synthesis of Ag@SiO 2 @AuNPs dual plasmons and observed an immense increase in absorption over wide range wavelengths. plays main role enhancing near ultraviolet band. The silica shell can also further enhance LSP effect prevent recombination on AgNPs....