Ukrainian Journal of Physical Optics


2025 Volume 26, Issue 3


ISSN 1816-2002 (Online), ISSN 1609-1833 (Print)

ENHANCING MAPbI3 PEROVSKITE SOLAR CELL PERFORMANCE USING WS2 AS AN ELECTRON TRANSPORT LAYER

M. Moustafa, A. Abd El-Samad, H. H. Zeenelabden, Z. Abu Waar and M. Swillam

Author Information
1,*M. Moustafa ORCID logo, 1A. Abd El-Samad ORCID logo , 1H. H. Zeenelabden ORCID logo , 2Z. Abu Waar ORCID logo , 1M. Swillam ORCID logo

1Department of Physics, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
2Department of Physics, College of Science, The University of Jordan, Amman, 11942, Jordan
*Corresponding Author: mohamed.orabi@aucegypt.edu

ABSTRACT

Planar perovskite solar cells (PSCs) have surfaced as a promising photovoltaic technology due to their potential for low-temperature processing and streamlined fabrication. A key factor in enhancing the performance of planar PSCs is the electron transport layer (ETL). This study explores the use of WS2, a transition metal dichalcogenide (TMDC), as an alternative ETL in the methylammonium lead iodide (MAPbI3) active layer planner n-i-p structured perovskite solar cells. Numerical investigation using wxAMPS software evaluates the feasibility of WS2 as a replacement for conventional ETLs, addressing challenges related to toxicity and stability. To optimize device performance, comprehensive simulations analyze the effects of various parameters, including ETL thickness, hole transport layer, absorber layer, doping concentration, defect density, and bandgap. The optimal thickness and the band gap value of the WS2 ETL layer have been reported to be 150 nm and 1.8 eV, respectively. The optimized configuration achieves performance metrics as follows: a power conversion efficiency of 26.34%, a fill factor of 82.84%, a short-circuit current density of 22.7 mA/cm2 and an open-circuit voltage of 1.41 V. These results underscore the potential of WS2 TMDC- ETLs for high-efficiency PSCs, paving the way for practical applications following experimental validation.

Keywords: solitons, algebraic method, cnoidal waves

UDC: 535.2, 620

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    Планарні перовскітні сонячні елементи (PSC) стали перспективною фотоелектричною технологією завдяки можливості їхньої низькотемпературної обробки та спрощеного виготовлення. Ключовим фактором підвищення ефективності планарних PSC є шар транспортування електронів (ETL). У цьому дослідженні розглядається використання WS2, дихалькогеніду перехідного металу (TMDC), як альтернативного ETL у планарній структурі n-i-p перовскітних сонячних елементів на основі активного шару метиламоній свинцевого йодиду (MAPbI3). Доцільність застосування WS2 як заміни традиційних ETL, вирішуючи проблеми, пов’язані з токсичністю та стабільністю, оцінено чисельним моделюванням за допомогою програмного забезпечення wxAMPS. Для оптимізації продуктивності пристрою, на основі комплексного моделювання проаналовано вплив різних параметрів, включаючи товщину ETL, шар транспортування дірок, шар поглинача, концентрацію легування, щільність дефектів і заборонену зону.Оптимальна товщина шару WS2 ETL встановлена на рівні 150 нм, а ширина його забороненої зони – 1,8 еВ. Оптимізована конфігурація досягає таких показників ефективності: коефіцієнт перетворення енергії 26,34%, фактор заповнення 82,84%, густина струму короткого замикання 22,7 мА/см2 і напруга холостого ходу 1,41 В. Отримані результати підкреслюють потенціал WS2 TMDC-ETL для високоефективних PSC, відкриваючи можливості для практичного застосування після експериментальної перевірки.

    Ключові слова: дихалькогеніди перехідних металів, моделювання wxAMPS, перовскітні сонячні елементи, шар транспортування електронів

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