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Energies
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Photovoltaic Performance of Dye-Sensitized and Perovskite Solar Cells
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Photovoltaic Performance of Dye-Sensitized and Perovskite Solar Cells

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A2: Solar Energy and Photovoltaic Systems".

Deadline for manuscript submissions: closed (30 June 2021) | Viewed by 16687

Special Issue Editors

Dr. Jongchul Lim

E-Mail Website
Guest Editor
Graduate School of Energy Science and Technology, Chungnam National University, Daejeon 34134, Republic of Korea
Interests: organic/inorganic/hybrid solar energy materials; dye-sensitized solar cells; perovskites solar cells; photovoltaics; optoelectronics; charge trasnport; photophysics; interfacial engineering
Special Issues, Collections and Topics in MDPI journals
Dr. Min Kim

E-Mail Website
Guest Editor
School of Chemical Engineering, Jeonbuk National University, 567 Baekje-daero, Jeonju 54896, Korea
Interests: organic solar cells; perovskite solar cells; organic-inorganic hybrid nanomaterials; optoelectronics

Special Issue Information

Dear Colleagues,

In the past few decades, a new paradigm of solar cells has emerged with a promising photovoltaic performance, by employing various organic, inorganic, and hybrid light absorber materials, for example, dyes and metal halide perovskites, not only in single-junction, but also in multi-junction, tandem devices. The photovoltaic performance of solar cells is governed by various key factors such as light absorption strength and the bandgap of absorber materials, charge carrier lifetime, radiative efficiency, and charge carrier mobility, as well as interfacial charge transfer. Elucidating the photovoltaic performance of solar cells is crucial to step forward to commercialize stable devices and to develop both highly efficient light absorber materials and charge transporting materials.

In this Special Issue of Energies, we aim to present research articles and reviews reporting the most recent advancements in the photovoltaic performance of solar cells with organic, inorganic, and hybrid light absorber materials, for example, dyes and perovskites, but also charge transporting materials. This Issue is especially interested in works related to insights into the photovoltaic and optoelectronic properties of materials and devices. We look forward to your contribution to this Special Issue.

Dr. JongChul Lim
Dr. Min Kim
Guest Editors

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Keywords

  • photovoltaic performance
  • dye-sensitized solar cells
  • perovskite solar cells
  • charge transporting materials
  • interfacial engineering of materials and devices
  • photovoltaics and optoelectronic properties of materials and devices
  • charge generation and recombination
  • charge transfer

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Published Papers (4 papers)

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Research

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8 pages, 2052 KiB  
Article
A-Site Cation Engineering for Efficient Blue-Emissive Perovskite Light-Emitting Diodes
by Jong Hyun Park, Chung Hyeon Jang, Eui Dae Jung, Seungjin Lee, Myoung Hoon Song and Bo Ram Lee
Energies 2020, 13(24), 6689; https://doi.org/10.3390/en13246689 - 18 Dec 2020
Cited by 5 | Viewed by 3002
Abstract
Metal halide perovskites have been investigated for the next-generation light-emitting materials because of their advantages such as high photoluminescence quantum yield (PLQY), excellent color purity, and facile color tunability. Recently, red- and green-emissive perovskite light-emitting diodes (PeLEDs) have shown an external quantum efficiency [...] Read more.
Metal halide perovskites have been investigated for the next-generation light-emitting materials because of their advantages such as high photoluminescence quantum yield (PLQY), excellent color purity, and facile color tunability. Recently, red- and green-emissive perovskite light-emitting diodes (PeLEDs) have shown an external quantum efficiency (EQE) of over 20%, whereas there is still room for improvement for blue emissive PeLEDs. By controlling the halide compositions of chloride (Cl−) and bromide (Br−), the bandgap of perovskites can be easily tuned for blue emission. However, halide segregation easily occurrs in the mixed-halide perovskite under light irradiation and LED operation because of poor phase stability. Here, we explore the effect of A-site cation engineering on the phase stability of the mixed-halide perovskites and find that a judicious selection of low dipole moment A cation (formamidinium or cesium) suppresses the halide segregation. This enables efficient bandgap tuning and electroluminescence stability for sky blue emissive PeLEDs over the current density of 15 mA/cm2. Full article
(This article belongs to the Special Issue Photovoltaic Performance of Dye-Sensitized and Perovskite Solar Cells)
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Review

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11 pages, 2327 KiB  
Review
Charge Transporting Materials Grown by Atomic Layer Deposition in Perovskite Solar Cells
by Young Joon Cho, Min Ji Jeong, Ji Hye Park, Weiguang Hu, Jongchul Lim and Hyo Sik Chang
Energies 2021, 14(4), 1156; https://doi.org/10.3390/en14041156 - 22 Feb 2021
Cited by 5 | Viewed by 3094
Abstract
Charge transporting materials (CTMs) in perovskite solar cells (PSCs) have played an important role in improving the stability by replacing the liquid electrolyte with solid state electron or hole conductors and enhancing the photovoltaic efficiency by the efficient electron collection. Many organic and [...] Read more.
Charge transporting materials (CTMs) in perovskite solar cells (PSCs) have played an important role in improving the stability by replacing the liquid electrolyte with solid state electron or hole conductors and enhancing the photovoltaic efficiency by the efficient electron collection. Many organic and inorganic materials for charge transporting in PSCs have been studied and applied to increase the charge extraction, transport and collection, such as Spiro-OMeTAD for hole transporting material (HTM), TiO2 for electron transporting material (ETM) and MoOX for HTM etc. However, recently inorganic CTMs are used to replace the disadvantages of organic materials in PSCs such as, the long-term operational instability, low charge mobility. Especially, atomic layer deposition (ALD) has many advantages in obtaining the conformal, dense and virtually pinhole-free layers. Here, we review ALD inorganic CTMs and their function in PSCs in view of the stability and contribution to enhancing the efficiency of photovoltaics. Full article
(This article belongs to the Special Issue Photovoltaic Performance of Dye-Sensitized and Perovskite Solar Cells)
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24 pages, 3207 KiB  
Review
Focussed Review of Utilization of Graphene-Based Materials in Electron Transport Layer in Halide Perovskite Solar Cells: Materials-Based Issues
by Xinchen Dai, Pramod Koshy, Charles Christopher Sorrell, Jongchul Lim and Jae Sung Yun
Energies 2020, 13(23), 6335; https://doi.org/10.3390/en13236335 - 1 Dec 2020
Cited by 11 | Viewed by 3801
Abstract
The present work applies a focal point of materials-related issues to review the major case studies of electron transport layers (ETLs) of metal halide perovskite solar cells (PSCs) that contain graphene-based materials (GBMs), including graphene (GR), graphene oxide (GO), reduced graphene oxide (RGO), [...] Read more.
The present work applies a focal point of materials-related issues to review the major case studies of electron transport layers (ETLs) of metal halide perovskite solar cells (PSCs) that contain graphene-based materials (GBMs), including graphene (GR), graphene oxide (GO), reduced graphene oxide (RGO), and graphene quantum dots (GQDs). The coverage includes the principal components of ETLs, which are compact and mesoporous TiO2, SnO2, ZnO and the fullerene derivative PCBM. Basic considerations of solar cell design are provided and the effects of the different ETL materials on the power conversion efficiency (PCE) have been surveyed. The strategy of adding GBMs is based on a range of phenomenological outcomes, including enhanced electron transport, enhanced current density-voltage (J-V) characteristics and parameters, potential for band gap (Eg) tuning, and enhanced device stability (chemical and environmental). These characteristics are made complicated by the variable effects of GBM size, amount, morphology, and distribution on the nanostructure, the resultant performance, and the associated effects on the potential for charge recombination. A further complication is the uncertain nature of the interfaces between the ETL and perovskite as well as between phases within the ETL. Full article
(This article belongs to the Special Issue Photovoltaic Performance of Dye-Sensitized and Perovskite Solar Cells)
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16 pages, 4604 KiB  
Review
Recent Progress and Challenges of Electron Transport Layers in Organic–Inorganic Perovskite Solar Cells
by Taewan Kim, Jongchul Lim and Seulki Song
Energies 2020, 13(21), 5572; https://doi.org/10.3390/en13215572 - 24 Oct 2020
Cited by 84 | Viewed by 6142
Abstract
Organic–inorganic perovskites are crystalline light absorbers which are gaining great attraction from the photovoltaic community. Surprisingly, the power conversion efficiencies of these perovskite solar cells have rapidly increased by over 25% in 2019, which is comparable to silicon solar cells. Despite the many [...] Read more.
Organic–inorganic perovskites are crystalline light absorbers which are gaining great attraction from the photovoltaic community. Surprisingly, the power conversion efficiencies of these perovskite solar cells have rapidly increased by over 25% in 2019, which is comparable to silicon solar cells. Despite the many advances in efficiency, there are still many areas to be improved to increase the efficiency and stability of commercialization. For commercialization and enhancement of applicability, the development of electron transport layer (ETL) and its interface for low temperature processes and efficient charge transfer are very important. In particular, understanding the ETL and its interface is of utmost importance, and when this understanding has been made enough, excellent research results have been published that can improve the efficiency and stability of the device. Here, we review the progress of perovskite solar cells. Especially we discuss recent important development of perovskite deposition method and its engineering as well as the electron transport layer. Full article
(This article belongs to the Special Issue Photovoltaic Performance of Dye-Sensitized and Perovskite Solar Cells)
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