{"title":"Design and numerical investigation of Cs2SnI6 vacancy-ordered double perovskite solar cell","authors":"Md Zannatul Arif, Guobing Zhou","doi":"10.1016/j.optlastec.2024.111820","DOIUrl":null,"url":null,"abstract":"<div><p>Perovskite solar cells (PSCs) represent an emerging technology in solar photovoltaics due to their outstanding optical and electrical characteristics. The urgency of lead-free solar materials has increased due to the environmental concerns. In light of these considerations, Cs<sub>2</sub>SnI<sub>6</sub>, a high-performance tin-based double perovskite, holds the potential to be a key absorber material in promoting the cell efficiency. In this paper, a device design of lead-free Cs<sub>2</sub>SnI<sub>6</sub>-based PSC is proposed based on an n-i-p planar structure. Through a comprehensive analysis by simulation using SCAPS-1D, the impacts of electron transport layer materials (SnO<sub>2</sub>, TiO<sub>2</sub>, CdS, GO, MZO) and hole transport layer materials (MoO<sub>3</sub>, Cu<sub>2</sub>O, CuI, Spiro-OMeTAD) with varying thicknesses as well as the donor density, acceptor density and the absorber thickness have been examined. Additionally, an examination is conducted on the performance metrics of PSCs, encompassing V<sub>oc</sub>, J<sub>sc</sub>, FF, and PCE, while taking into consideration the influences of temperature, <em>R</em><sub>series</sub>, and <em>R</em><sub>shunt</sub>. The results show that the optimized FTO/SnO<sub>2</sub>/Cs<sub>2</sub>SnI<sub>6</sub>/MoO<sub>3</sub>/Au device presents the highest PCE of 22.60 % at 300 K temperature, together with a visible quantum efficiency of 99.49 %. The appropriate thicknesses of the ETL, HTL, and absorber layer for achieving the optimal performances are 50 nm, 200 nm, and 450 nm, respectively. Also, the donor density and acceptor density for the best efficiency are both at 10<sup>18</sup> cm<sup>−3</sup>. The values of <em>R</em><sub>series</sub>, and <em>R</em><sub>shunt</sub> are 2 Ω cm<sup>2</sup> and 6000 Ω cm<sup>2</sup>, respectively. This investigation demonstrates that the proposed vacancy-ordered double perovskite Cs<sub>2</sub>SnI<sub>6</sub> solar cell is promising for photovoltaic devices due to the highlighted characteristics and optical parameters.</p></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"181 ","pages":"Article 111820"},"PeriodicalIF":4.6000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics and Laser Technology","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0030399224012787","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Perovskite solar cells (PSCs) represent an emerging technology in solar photovoltaics due to their outstanding optical and electrical characteristics. The urgency of lead-free solar materials has increased due to the environmental concerns. In light of these considerations, Cs2SnI6, a high-performance tin-based double perovskite, holds the potential to be a key absorber material in promoting the cell efficiency. In this paper, a device design of lead-free Cs2SnI6-based PSC is proposed based on an n-i-p planar structure. Through a comprehensive analysis by simulation using SCAPS-1D, the impacts of electron transport layer materials (SnO2, TiO2, CdS, GO, MZO) and hole transport layer materials (MoO3, Cu2O, CuI, Spiro-OMeTAD) with varying thicknesses as well as the donor density, acceptor density and the absorber thickness have been examined. Additionally, an examination is conducted on the performance metrics of PSCs, encompassing Voc, Jsc, FF, and PCE, while taking into consideration the influences of temperature, Rseries, and Rshunt. The results show that the optimized FTO/SnO2/Cs2SnI6/MoO3/Au device presents the highest PCE of 22.60 % at 300 K temperature, together with a visible quantum efficiency of 99.49 %. The appropriate thicknesses of the ETL, HTL, and absorber layer for achieving the optimal performances are 50 nm, 200 nm, and 450 nm, respectively. Also, the donor density and acceptor density for the best efficiency are both at 1018 cm−3. The values of Rseries, and Rshunt are 2 Ω cm2 and 6000 Ω cm2, respectively. This investigation demonstrates that the proposed vacancy-ordered double perovskite Cs2SnI6 solar cell is promising for photovoltaic devices due to the highlighted characteristics and optical parameters.
期刊介绍:
Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication.
The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas:
•development in all types of lasers
•developments in optoelectronic devices and photonics
•developments in new photonics and optical concepts
•developments in conventional optics, optical instruments and components
•techniques of optical metrology, including interferometry and optical fibre sensors
•LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow
•applications of lasers to materials processing, optical NDT display (including holography) and optical communication
•research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume)
•developments in optical computing and optical information processing
•developments in new optical materials
•developments in new optical characterization methods and techniques
•developments in quantum optics
•developments in light assisted micro and nanofabrication methods and techniques
•developments in nanophotonics and biophotonics
•developments in imaging processing and systems