Optimization of several parameters towards 30% efficiency perovskite based solar cell using scaps-1d software




HIGHLIGHTS
  • What: The aim of this study is to develop a high-performance perovskite solar cell with a simple structure and optimized parameters. In this study, the simulated perovskite-based solar cell of P3HT/MAPbI3/C60 structure was examined using SCAPS-1D software.
  • Who: it unit from the College of Science, Al-Karkh University of Science, Baghdad, Iraq have published the article: Optimization of Several Parameters Towards 30% Efficiency Perovskite Based Solar Cell Using SCAPS-1D Software, in the Journal: (JOURNAL)
  • How: It is well-known that the active layer thickness is a crucial factor that effects the solar cell performance for this reason different perovskite active layer thickness ranging from 500 to 2000 nm were studied to determine the best active layer thickness for the best solar cell performance.
SUMMARY

    Burak Yahya Kadem and Ehsan M. Abbas The simulation consists of_(left contact/P3HT/MAPbI3/C60/right contact) solar device under AM 1.5 G 1sun and 100 mW/cm2 illumination, where Buckminsterfullerene (C60) was used as the Electron Transport Layer (ETL), Poly(3-hexylthiophene) (P3HT) as the Hole Transport Layer (HTL) and methyl ammonium lead iodide (CH3NH3PbI3) as the absorber perovskite layer. Simulated results, demonstrated in Fig1(A-C), showed an enhancement in the devices` performance with increasing the active layer thickness. Such enhancement with increasing the active layer thickness contributes to high photo-generation, hence, high charge carriers. The enhancement in EQE is confirmed by the J-V curve in Fig1A, which improves JSC by increasing the active layer thickness. Shown in Fig1C illustrate the variation in the solar cell parameters (Voc, Jsc, FF, PCE) as a function of the active layer thickness. Indicate that JSC increases with increasing the active layer thickness to reach the maximum JSC of 25.2 mA.cm-2 at an active layer thickness of 2000nm compared to 32.63 mA.cm-2 for the device with an active layer thickness of 500nm. Such a result is promising for achieving high PCE for perovskite-based solar cells by optimizing several factors, including active layer thickness, energy band gap, electron affinity, and effective density of state for CB and VB. Several parameters were examined for the perovskite layer to achieve high PCE, including the perovskite layer thickness, CB and VB effective density of state, band gap, and electron affinity. The optimum active layer thickness was 2000nm with PCE of 21%, JSC of 25.2 mA.cm-2, FF of 74.4% and Voc of 1.12V. @@

LAY DEFINITIONS
  • Perovskite: A perovskite is any material with the same type of crystal structure as calcium titanium oxide (CaTiO3), known as the perovskite structure, or XIIA2+VIB4+X2u22123 with the oxygen in the face centers. Perovskites take their name from the mineral, which was first discovered in the Ural mountains of Russia by Gustav Rose in 1839 and is named after Russian mineralogist L
  • Solar Cell: A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon. It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light
  • Density of states: In solid state physics and condensed matter physics, the density of states (DOS) of a system describes the proportion of states that are to be occupied by the system at each energy. The density of states is defined as D(E) = N(E)/V, where N(E) u03b4E is the number of states in the system of volume V whose energies lie in the range from E to E + u03b4E
  • Conduction band: In solid-state physics, the valence band and conduction band are the bands closest to the Fermi level and thus determine the electrical conductivity of the solid. In non-metals, the valence band is the highest range of electron energies in which electrons are normally present at absolute zero temperature, while the conduction band is the lowest range of vacant electronic states
  • Efficiency: In the comparison of various statistical procedures, efficiency is a measure of quality of an estimator, of an experimental design, or of a hypothesis testing procedure. Essentially, a more efficient estimator, experiment, or test needs fewer observations than a less efficient one to achieve a given error performance
  • Software: Sequential operating programs and data which instruct the functioning of a digital computer.
  • Electron affinity: The electron affinity (Eu2091u2090) of an atom or molecule is defined as the amount of energy released when an electron is attached to a neutral atom or molecule in the gaseous state to form a negative ion. X(g) + eu207b u2192 Xu207b(g) + energy

Licence: cc-by

Site reference: https://ijp.uobaghdad.edu.iq/index.php/physics/article/download/1287/910

DOI reference: https://www.doi.org/10.30723/ijp.v22i4.1287

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