The critical role of metal oxide electron transport layer for perovskite solar cell (original) (raw)
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Optik, 2020
This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
Comparative Performance Study of Perovskite Solar Cell for Different Electron Transport Materials
Dhaka University Journal of Science
In recent times, planar organo-metal halide perovskite solar cells (PSCs) achieved high power conversion efficiency (PCE > 22%). Mixed organic-inorganic halide perovskites, with excellent light harvesting properties, have evolved as a promising class of semiconductors for photovoltaics. In this work, compositional and electrical characterizations of materials used for different layers of PSC have been studied. One dimensional solar cell simulator wx-AMPS is used for numerical simulation of such devices and all simulations are done under AM1.5 illuminations and 300K temperature. Investigating the influences of thickness of electron transport material (ETM), hole transporting material (HTM) and absorber on the photovoltaic performance of PSCs, it is observed that, increase in thickness of perovskite (MAPbI3) results in the increase in PCE of solar cells, whereas increase in thickness of ETM layer results in decrease in the efficiency of the devices. The ETM plays a vital role on th...
Simulation and evaluation of perovskite solar cells utilizing various electron transport layers
Nanosistemy: fizika, himiâ, matematika, 2024
Solar cells that contain perovskite have been a significant object for consideration within the field of solar energy, consistently enhancing their efficiency year by year. In our study, we devised a novel architectural configuration for a tin-based perovskite solar cell, incorporating FTO/ZnO/CH 3 NH 3 SnI 3 /Spiro-OMeTAD/Au. Our investigation into the working of this solar cell involved the utilization of the SCAPS-1D, a versatile tool tailored for the analysis of solar cell behavior. Through this simulation software, we explored different electrontransporting layer (ETL) materials and made adjustments to multiple parameters, including ETL and absorber layer thickness. The outcomes of our research produced promising results, showcasing significant enhancements in different solar cell parameters. These favorable findings underscore the growing allure and potential of perovskite solar cells within the realm of renewable energy. The reported CH 3 NH 3 SnI 3-based PSCs provide a viable path to the implementation of environmentally benign, low-cost, and high-efficiency PSCs.
Research progress in electron transport layer in perovskite solar cells
Rare Metals, 2017
Since perovskite solar cells appeared in 2009, its simple preparation process, high photoelectric conversion efficiency and the characteristic of low cost in preparation process let it become the hot spot of both at-home and abroad. Owing to the constant efforts of scientists, the conversion efficiency of perovskite solar cells is more than 20% now. Perovskite solar cells are mainly composed of conductive glass, electron transport layer and hole transport layer, perovskite layer and electrode parts. This paper will briefly introduce the working principle and working process about the electron transport layer of perovskite solar cells. The paper focuses on aspects such as material types (e.g., inorganic electron transport materials, organic small molecule electron transport materials, surface modified electron transport materials and doped electron transport materials), preparation technology of electron transport layer, the effects of electron transport layer on the photovoltaic performance of the devices, and the electron transport layer in the future research.
IOP Conference Series: Materials Science and Engineering, 2021
High efficiency, lightweight, and cost-effectiveness put the perovskite solar cells at the top of the focus researches of solar cells. The architecture of the cell especially the energy band alignment at the interface is a critical issue in cell performance. In the current paper, the solar cell structure under investigation consists of TiO2, CH3NH3PbI3, and Spiro OMe TAD as the electron transport layer, absorber, and hole transport layer respectively. A 3C-SiC material with an energy gap of 2.420 eV was used as an interface layer. The role of the interface layer between the perovskite and electron transport layer was considered. Before inserting the interface layer, a parametric study including the thickness and doping of each layer was achieved. The results showed that the best performance of the cell at a thickness of 400 nm, 300 nm, 200 nm for absorber layer, ETL, and HTL respectively, with a doping concentration of 1014 cm-3, 1019 cm-3, 1019 cm-3 for the same layers. These parameters give a Voc, Jsc, FF, and PCE of 1.11 V, 28.9 mA∙cm-2, 83.19%, and 26.88% respectively. Inserting an interface layer improved the performance of the cell where the PCE increased over 29% at a thickness of 90 nm. The results showed that the parameters of the interface layer play a significant role in cell performance.
Inorganic Electron Transport Materials in Perovskite Solar Cells
Advanced Functional Materials, 2020
In the past decade, the perovskite solar cell (PSC) has attracted tremendous attention thanks to the substantial efforts in improving the power conversion efficiency from 3.8% to 25.5% for single-junction devices and even perovskite-silicon tandems have reached 29.15%. This is a result of improvement in composition, solvent, interface, and dimensionality engineering. Furthermore, the long-term stability of PSCs has also been significantly improved. Such rapid developments have made PSCs a competitive candidate for next-generation photovoltaics. The electron transport layer (ETL) is one of the most important functional layers in PSCs, due to its crucial role in contributing to the overall performance of devices. This review provides an up-to-date summary of the developments in inorganic electron transport materials (ETMs) for PSCs. The three most prevalent inorganic ETMs (TiO2, SnO2, and ZnO) are examined with a focus on the effects of synthesis and preparation methods, as well as an introduction to their application in tandem devices. The emerging trends in inorganic ETMs used for PSC research are also reviewed. Finally, strategies to optimize the performance of ETL in PSCs, effects the ETL has on J–V hysteresis phenomenon and longterm stability with an outlook on current challenges and further development are discussed.
Sustainable Materials and Technologies, 2020
This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
Perovskite Solar Cells (PSCs): Definition, Structure, and Solar Cells Development
Zenodo (CERN European Organization for Nuclear Research), 2023
Due to the unique advantages of perovskite solar cells (PSCs), this new class of PV technology has received much attention from both, scientific and industrial communities, which made this type of solar cell has been improved at an unprecedented rate. Although the obvious significance of PSCs, this technology has shown low stability in environmental conditions, and it is far to reach the stability standards of commercial types. This review article shows the contents of perovskite matter and its perfect photoelectric properties and discusses the process of converting photo energy to electric energy in which perovskite light absorbers are sandwiched between an electron transporting matter (ETM) and a hole transporting matter (HTM) and the relationships between them. It is important to explain the stability issues of PSCs so that, the main factors, which degrade the different layers and reduce the stability of PSCs, are highlighted. Moreover, the recent improvements in the principal parts of PSCs are summarized in this review article. This work has been done for a better understanding of this promising PV technology. Presides, it surveys significant solutions and suggestions of several studies in this field. Consequently, this review article is going to help researches to understand the structure of PSCs, and figure out how they can enhance the stability and efficiency of PSCs to achieve the required standards to be a commercial technology.
2019
Recently, photovoltaic energy is growing up rapidly especially in solar cell fabrication. Perovskite-based solar cell technology has been focus of interest from photovoltaic technologies due to its high power conversion efficiency and low processing cost comparing by others. The first step in solar cell fabrication is the simulation, which gives an idea about effect of different parameters on power conversion efficiently with less efforts and costs. There are a lot of software that are used in solar cell simulations, such as GPVDM, SCAPS and Silvaco Atlas. Therefore, several structures are used in perovskite-based solar cells, such as n-i-p, p-i-n, n-p-p and p-p-n. Our study is focused on n-i-p structure. For the present paper we used Silvaco Atlas software because it contains a lot of physical and recombination models based on solving the Poisson partial differential equation and carrier continuity. Moreover, this paper shows numerical simulations of planar heterojunction solar cell structures that have the following layers: hole transporting layer (HTL)/perovskite absorber layer (PVK)/electron transporting layer (ETL). However, different layer materials of ETL are used, namely cadmium sulfide (CdS) and zink oxide (ZnO) in order to study the behavior of solar cells based on perovskite (CH3NH3PbI3). This latter material used in this paper's simulation belongs to organic/inorganic type. The obtained results show that the solar cell structure based on CdS exhibits a better performance in term of power conversion efficiency (PCE) compared to that based on ZnO when using the same layer thickness.