A5063856136- Silicon and Solar Cell Technologies
- Thin-Film Transistor Technologies
- Semiconductor materials and interfaces
- Integrated Circuits and Semiconductor Failure Analysis
- solar cell performance optimization
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Conducting polymers and applications
- Nanowire Synthesis and Applications
- Silicon Nanostructures and Photoluminescence
- Organic Electronics and Photovoltaics
- Photovoltaic System Optimization Techniques
- Chalcogenide Semiconductor Thin Films
National University of Singapore
2012-2020
National University Cancer Institute, Singapore
2019-2020
Tandem solar cells (SCs) based on perovskite and silicon represent an exciting possibility for a breakthrough in photovoltaics, enhancing SC power conversion efficiency (PCE) beyond the single-junction limit while keeping production cost low. A critical aspect to push tandem PCE close its theoretical is development of high-performing semitransparent top cells, which also allow suitable near-infrared transmission. Here, we have developed highly efficient SCs (PSCs) both mesoporous planar...
A finite-element model is constructed to represent a silicon solar cell as vast network of diodes with different saturation current densities, focus on the definition three recombination parameters describe vicinity wafer edges. By simulating voltage distribution across plane, well current-voltage characteristics at illumination intensities, these peripheral and edge are extracted for various types processes by comparison corresponding measurement data. It noted that monocrystalline PERC...
The current transport efficiency of a solar cell, defined as the fraction local light-induced that leads to terminal increase, is experimentally determined for industrially made crystalline silicon wafer cells. Fast mapping possible by simple differential electroluminescence imaging and application reciprocity relationship. sensitivity different components series resistance studied through computer finite element analysis. A measurement routine can quantify division metal busbars on cell...
Abstract Hybrid hole transport layers (HHTLs) consisting of‐a low‐cost, low‐temperature, dopant‐free, organic, hole‐selective poly(3,4‐ethylenedioxythiophene):polystyrene sulphonate (PEDOT:PSS) and an inorganic homogenous tunnel oxides (HoTOs), such as SiO x , TiO AlO have allowed significant improvements in carrier selectivity well power cost efficiency. These key parameters can be further improved by introducing heterogeneous (HeTOs), formed of two different oxides. This work examines the...
Double-side contact passivated silicon solar cells offer a high efficiency potential by reducing metal-semiconductor recombination at both the front and rear contacts. In this work, we explore three industrial metallization solutions for double-side cells, namely, (i) deposition of transparent conductive oxides (TCO), subsequent low temperature (low-T) screen printing, (ii) conventional (high-T) fire-though deploying rear-side poly-Si(p <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
All-back-contact (ABC), metal wrap through (MWT) and generally solar cell designs with complex metallization geometries are not amenable to simple series resistance (R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</sub> ) analysis based on small unit cells. In order accurately determine the effects of R in these cells, SERIS developed a MATLAB program that captures geometry from rastered images, breaks down metalized areas into line segments...
Tandem solar cells consisting of perovskite and silicon sub-cells are very promising for low-cost electricity generation due to low fabrication cost high efficiency potential. Due the limited active area top available at moment, small-area passivated contact n-type monoPoly <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">TM</sup> customized tandem applications is investigated by scaling down from 6-inch full-size fabricated using industrial...
A close-to-zero damage rear-side heterojunction stripe contact has been realized using laser ablation, which involves the optimization of (1) fluence and (2) wet-chemical removal processes. The saturation current density (j <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</inf> ) values underneath contacts as well passivated regions have extracted intensity-dependent photoluminescence (PL) imaging PL image analysis Griddler AI. Thus...