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Dear Colleagues,

Perovskite solar cells (PSCs) have received a great deal of attention in the last few years, and its power conversion efficiency has increased to over 25%. The efficiency of PSCs is comparable to silicon solar cells and is expected to be an important direction for a low-carbon society in the future. The development of novel nanomaterials, such as hole/electron transporting materials, perovskite materials, and carbon materials, is a potential way to further enhance the power conversion efficiency and device stability.

The aim of this Special Issue is to collect state-of-the-art contributions related to various applications of novel nanomaterials in the field of perovskite solar cells. This includes, but is not limited to, electrode materials, nanostructured perovskite materials, hole/electron transport materials, carbon materials, and their applications in photovoltaic device. The authors are encouraged to highlight the advantageous features of these materials, as well as to address their current limitations and challenges.

Dr. Long Zhou
Guest Editor

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Keywords

perovskite materials
electrode materials
hole/electron transport materials
carbon materials
photovoltaic device

Published Papers (2 papers)

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Research

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22 pages, 5127 KiB

Open AccessArticle

Preparation and Numerical Optimization of TiO₂:CdS Thin Films in Double Perovskite Solar Cell

by Ghazi Aman Nowsherwan, Aurang Zaib, Aqeel Ahmed Shah, Mohsin Khan, Abdul Shakoor, Syed Nizamuddin Shah Bukhari, Muhammad Riaz, Syed Sajjad Hussain, Muhammad Ali Shar and Abdulaziz Alhazaa

Energies 2023, 16(2), 900; https://doi.org/10.3390/en16020900 - 12 Jan 2023

Cited by 17 | Viewed by 2321

Abstract

This work focuses on preparing TiO₂, CdS, and composite TiO₂:CdS thin films for photovoltaic applications by thermal evaporation. The suggested materials exhibit very good optical and electrical properties and can play a significant role in enhancing the efficiency of the device. Various microscopy and spectroscopy techniques were considered to investigate the optical, morphological, photoluminescence, and electrical properties. FTIR confirms the material identification by displaying some peaks in the fingerprint region. UV Vis spectroscopy yields high transmission (80–90%) and low absorbance (5–10%) within the spectral region from 500 nm to 800 nm for the composite thin films. The optical band gap values for CdS, TiO_2, and TiO₂:CdS thin films are 2.42 eV, 3.72 eV, and 3.6 eV. XRD was utilized to analyze the amorphous nature of the thin films, while optical and SEM microscopy were employed to examine the morphological changes caused by the addition of CdS to TiO₂. The decrease in the bandgap of the composite thin films was determined by the Tauc plot, which is endorsed due to the band tailing effects. Photoluminescence spectroscopy depicts several emission peaks in the visible region when they are excited at different wavelengths, and the electrical measurement enhances the material conductivity. Furthermore, the proposed electron transport materials (TiO₂, CdS, TiO₂:CdS) were simulated with different perovskite materials to validate their design by employing the SCAPS-1D program and assess their performance in commercial implementation. The observed results suggest that TiO₂:CdS is a promising candidate to be used as an ETM in PSC with enhanced productivity. Full article

(This article belongs to the Special Issue Advances in Nanomaterials for Perovskite Photovoltaic Devices)

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Review

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21 pages, 4146 KiB

Open AccessReview

Research Progress of Semi-Transparent Perovskite and Four-Terminal Perovskite/Silicon Tandem Solar Cells

by Yunlong Zhang, Long Zhou and Chunfu Zhang

Energies 2024, 17(8), 1833; https://doi.org/10.3390/en17081833 - 11 Apr 2024

Viewed by 491

Abstract

Perovskite/silicon tandem solar cells are of great interest due to their potential for breaking the Shockley-Queisser limit of single-junction silicon solar cells. Perovskite solar cells are widely used as the top subcells in perovskite/silicon tandem solar cells due to their high efficiency and lower fabrication cost. Herein, we review the semi-transparent perovskite solar cell in terms of the mechanisms of their translucent structure, transparent electrodes, charge transport layer, and component modification. In addition, recent progress in the research and development of 4T perovskite/silicon tandem solar cells is summarized, with emphasis on the influence of perovskite structure and silicon cells on the progress of tandem solar cells. Finally, we discuss the challenges associated with 4T perovskite/silicon tandem solar cells and suggest directions for the development of perovskite/silicon commercialization. Full article

(This article belongs to the Special Issue Advances in Nanomaterials for Perovskite Photovoltaic Devices)

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