Article
Energy & Fuels
Lucas Gavotto, Joanna Kret, Stephanie Parola, Frederic Martinez, Yves Rouillard, Eric Tournie, Yvan Cuminal
Summary: Antimonide-based alloys have potential applications in the field of multijunction solar cells. This study focuses on the fabrication and characterization of a tandem solar cell and a single solar cell using AlGaAsSb material. It also introduces a new method for measuring the quantum efficiency of tandem solar cells with low shunt resistances. Short diffusion lengths of minority carriers in the AlGaAsSb alloy are found to limit the conversion efficiency of the solar cell.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Article
Optics
Feng Xie, Yan Gu, Zhijia Hu, Benli Yu, Guofeng Yang
Summary: A high-performance back-illuminated solar-blind ultraviolet photodetector with ultra-low dark current, broad spectral response, and fast response speed has been fabricated in this study.
Article
Chemistry, Multidisciplinary
Jae Hyun Park, Su Geun Ji, Ik Jae Park, Sun Kyung Hwang, Hyun Woo Lim, Jin Young Kim
Summary: This article presents a characterization platform for the sub-cell analysis of monolithic two-terminal PVSK/Si TSCs and reports a comprehensive set of electrical characterization methods.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Review
Energy & Fuels
Minmin Yang, Jihuai Wu, Zhang Lan, Jianming Lin, Miaoliang Huang, Leqing Fan
Summary: Reviewing the literature on tandem solar cell (TSC) research from 2000 to 2019, identifying the top 10 research hotspots and clusters, and revealing the development orientation of TSC research. The study indicates that organic solar cells are the mainstream of TSC research, while perovskite solar cells are a typical emerging trend.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Dan Zhang, Han-Hee Cho, Jun-Ho Yum, Mounir Mensi, Kevin Sivula
Summary: This study demonstrates a robust organic photocathode operating in near-neutral pH electrolyte, achieving high photocurrent density and operational stability. By combining the optimized photocathode with a benchmark photoanode, a large-area organic photoelectrochemical tandem cell for complete solar water splitting is demonstrated, with high predicted solar-to-hydrogen conversion efficiency.
ADVANCED ENERGY MATERIALS
(2022)
Review
Chemistry, Physical
Michele De Bastiani, Anand S. Subbiah, Maxime Babics, Esma Ugur, Lujia Xu, Jiang Liu, Thomas G. Allen, Erkan Aydin, Stefaan De Wolf
Summary: Perovskite/silicon tandem solar cells are high-efficiency and low-cost photovoltaic devices that enhance stability and energy yield by collecting light from both the sunward and rear side.
Article
Chemistry, Physical
Jiang Liu, Erkan Aydin, Jun Yin, Michele De Bastiani, Furkan H. Isikgor, Atteq Ur Rehman, Emre Yengel, Esma Ugur, George T. Harrison, Mingcong Wang, Yajun Gao, Jafar Iqbal Khan, Maxime Babics, Thomas G. Allen, Anand S. Subbiah, Kaichen Zhu, Xiaopeng Zheng, Wenbo Yan, Fuzong Xu, Michael F. Salvador, Osman M. Bakr, Thomas D. Anthopoulos, Mario Lanza, Omar F. Mohammed, Frederic Laquai, Stefaan De Wolf
Summary: Adding carbazole as an additive to the perovskite precursor solution can enhance the stability and performance of perovskite solar cells in a monolithic tandem configuration. The improved devices demonstrate a high stabilized PCE and excellent performance in hot and humid outdoor environments, showing enhanced phase stability.
Article
Engineering, Environmental
Ankita Kolay, Heather Flint, Elizabeth A. Gibson, Melepurath Deepa
Summary: This article introduces a tandem photoelectrochemical cell that can capture and convert visible light to near infrared light with high power conversion efficiency. The device consists of a nickel oxide photocathode sensitized with silver bismuth sulfide quantum dots, and a cadmium sulfide-sensitized titania photoanode. Trigonal-selenium sub-microtubes are anchored to the photoanode to enhance conductivity and increase device performance. The study provides insights into the charge flow mechanism in this unique device based on favorable energy level alignment.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Xinhai Zhao, Hu Quee Tan, Erik Birgersson, Wei Chen, Yi Hou, Hansong Xue
Summary: In this study, an optoelectronic model is developed to understand the underlying physics and influential parameters of two-terminal perovskite/organic tandem solar cells. The effects of surface coverage, bulk, and sheet resistances on charge carrier recombination are investigated. Furthermore, a pathway towards achieving high efficiency is identified.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Chemistry, Physical
Yanjie Wu, Nan Ding, Yuhong Zhang, Bin Liu, Xinmeng Zhuang, Shuainan Liu, Zhaogang Nie, Xue Bai, Biao Dong, Lin Xu, Donglei Zhou, Hongwei Song
Summary: This study focuses on extending the near-infrared (NIR) spectral response and increasing ultraviolet (UV) utilization for perovskite solar cells (PSCs). By integrating new organic bulk-heterojunction and gold nanotriangles, the NIR spectral response of PSCs is extended to 1100 nm. The study also demonstrates the potential of CsPbCl3:Yb3+, Ce3+, Cr3+ nanophosphors for down-conversion in PSCs, resulting in a significant increase in power conversion efficiency (PCE) and short circuit current density (Jsc).
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Juhee Kim, Mingyun Kang, Sangjun Lee, Chan So, Dae Sung Chung
Summary: This study demonstrates a photomultiplication-type organic photodiode with an electric double layer embedded structure, showing high external quantum efficiency and responsivity. By optimizing the work function adjustment and enhancing the electron trapping efficiency, the device performance is improved, and the effects of the electric double layer on the gain generation mechanism are confirmed through numerical simulations.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Mohamed Shaban, Mohamed Benghanem, Abdullah Almohammedi, Mohamed Rabia
Summary: ITO/PEDOT:PSS/P3HT:PC60BM/Mg-Al organic solar cells were fabricated by optimizing P3HT and PC60BM. The study found that the optimal spin coating speed and annealing temperature were 3000 rpm and 160 degrees C, respectively. The prepared OSC showed promising performance parameters and potential for industrial applications.
Article
Multidisciplinary Sciences
Sangho Kim, Thanh Thuy Trinh, Jinjoo Park, Duy Phong Pham, Sunhwa Lee, Huy Binh Do, Nam Nguyen Dang, Vinh-Ai Dao, Joondong Kim, Junsin Yi
Summary: A novel solar cell configuration was developed to improve the efficiency of PVK-filtered c-Si HJ bottom sub-cell by utilizing albedo reflection. The approach achieved a conversion efficiency exceeding 30% and has the potential to lower production costs of industrial solar cells in the near future.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Jianqiu Wang, Zhong Zheng, Pengqing Bi, Zhihao Chen, Yafei Wang, Xiaoyu Liu, Shaoqing Zhang, Xiaotao Hao, Maojie Zhang, Yongfang Li, Jianhui Hou
Summary: Tandem organic solar cells with recorded efficiency are achieved by implementing the ternary strategy to simultaneously reduce energy disorder and non-radiative voltage losses. This work demonstrates that decreasing the voltage losses by ternary strategy and constructing tandem architecture are effective approaches towards improving photovoltaic performance.
NATIONAL SCIENCE REVIEW
(2023)
Article
Engineering, Electrical & Electronic
Nazir Mustapha, Muhammad Abdel-Shakour, Idriss Bedja, M. Abdel Rafea
Summary: The photovoltaic performance of black dye-based dye-sensitized solar cells can be improved by introducing long alkoxy group, tuning anchoring parts, and pi-spacer, which reduces dye aggregation and improves sensitizer coverage.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
T. L. Derrien, A. E. Lauritzen, P. Kaienburg, J. F. M. Hardigree, C. Nicklin, M. Riede
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Physical
Gareth John Moore, Martina Causa', Josue F. Martinez Hardigree, Safakath Karuthedath, Ivan Ramirez, Anna Jungbluth, Frederic Laquai, Moritz Riede, Natalie Banerji
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2020)
Article
Chemistry, Multidisciplinary
Alberto Privitera, Giacomo Londi, Moritz Riede, Gabriele D'Avino, David Beljonne
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Nanoscience & Nanotechnology
Bingjun Wang, Hao Ye, Moritz Riede, Donal D. C. Bradley
Summary: The introduction of beta-phase chain segments into the copolymer 90F8:10BT significantly improves the performance of LEDs, confirming the effectiveness of chain conformation control for fluorene-based homo- and copolymer device optimization.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Multidisciplinary Sciences
Ivan Ramirez, Alberto Privitera, Safakath Karuthedath, Anna Jungbluth, Johannes Benduhn, Andreas Sperlich, Donato Spoltore, Koen Vandewal, Frederic Laquai, Moritz Riede
Summary: Stability is crucial for the commercialization of organic photovoltaic (OPV) devices. Triplet states, particularly through back-hole transfer (BHT), play a significant role in the photo-degradation of fullerene-based devices. The impact of electron and hole back transfer on BHJ stability should be carefully considered in the design of stable OPV devices.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Moritz Riede, Donato Spoltore, Karl Leo
Summary: Organic solar cells have the potential to be the cheapest form of electricity, surpassing silicon photovoltaics. However, challenges remain in increasing efficiency and long-term stability. The technology could be used in building integrated photovoltaics and portable electronics, with the potential to have the lowest carbon footprint of all energy generation technologies.
ADVANCED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Sameer Vajjala Kesava, Moritz K. Riede
Summary: The electronic wave functions of atoms or molecules are influenced by their interactions with the environment. The in situ spectroscopic ellipsometry data analysis method called DART allows for direct observation of electronic coupling along the thickness direction. This method is applicable for studying electronic coupling between vapor-deposited materials systems where real-time measurements during thin film growth are possible.
PHYSICAL REVIEW MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Alberto Privitera, Marcello Righetto, Franco Cacialli, Moritz K. Riede
Summary: Spin-related phenomena in optoelectronic materials have promising applications in various technological areas, with organic semiconductors and halide perovskites playing a key role in driving forward this field. The development of organic- and perovskite-based spintronics enables control over spin, charges, and photons in devices, with potential applications in new multifunctional spintronic devices.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Pascal Kaienburg, Anna Jungbluth, Irfan Habib, Sameer Vajjala Kesava, Mathias Nyman, Moritz K. Riede
Summary: Vacuum-thermal evaporation (VTE) is an important fabrication route for organic solar cells (OSCs) and can reach high extinction coefficients, but only moderate carrier mobility and voltage loss compared to solution-processed counterparts. Improvement is needed for VTE OSCs to catch up in terms of power conversion efficiency.
ADVANCED MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Bingjun Wang, Sungho Nam, Saurav Limbu, Ji-Seon Kim, Moritz Riede, Donal D. C. Bradley
Summary: This paper reports on the use of N,N-dimethylformamide (DMF) and 1-methyl-2-pyrrolidinone (NMP) as alternative solvents for copper(I) thiocyanate (CuSCN) interlayers. The properties of CuSCN layers processed from DMF and NMP are compared to those processed from traditional solvents and other recent alternatives. The study discusses the surface roughness, polymorphism, and surface chemistry of the resulting CuSCN layers, as well as the interlayer surface energy and ionization potential. The overall suitability of dimethyl sulfoxide (DMSO) and DMF as solvents for CuSCN interlayer deposition is demonstrated through device tests.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Pascal Kaienburg, Helen Bristow, Anna Jungbluth, Irfan Habib, Iain McCulloch, David Beljonne, Moritz Riede
Summary: The advent of nonfullerene acceptors (NFAs) has achieved over 19% power conversion efficiency in laboratory organic photovoltaics (OPVs). However, high-efficiency NFAs have only been realized in solution-processed blends. Vacuum thermal evaporation (VTE) is crucial for real-world OPV commercialization due to its successful track record in upscaled industrial production. In this study, we demonstrate that using VTE donors with NFAs instead of the current standard acceptor C-60 can significantly reduce voltage losses, highlighting the immense potential of evaporable NFAs and the urgent need for smaller, evaporable compounds.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Irfan Habib, Pascal Kaienburg, Dondong Xia, Olivia Gough, Ming Zhu, Joseph Spruce, Weiwei Li, Moritz Riede
Summary: Since non-fullerene acceptors (NFAs) replaced fullerene derivatives, the power conversion efficiency of solution-processed organic solar cells (OSCs) has almost doubled. However, the successful transition from C-60 to NFAs is still pending for vacuum-thermal evaporated (VTE) OSCs due to the size limitation of NFAs. Discovering high-performing VTE NFAs is crucial for industrial manufacturing.
Article
Materials Science, Multidisciplinary
Anna Jungbluth, Pascal Kaienburg, Moritz Riede
Summary: A correct determination of voltage losses is crucial for improving the performance of organic solar cells. This paper summarizes different methods for calculating voltage losses and provides a detailed discussion on important models for characterizing charge transfer state properties.
JOURNAL OF PHYSICS-MATERIALS
(2022)
Article
Chemistry, Physical
Pierluigi Mondelli, Francesco Silvestri, Laura Ciammaruchi, Eduardo Solano, Eduardo Beltran-Gracia, Esther Barrena, Moritz Riede, Graham Morse
Summary: The study introduces a Non-Fullerene Acceptor (NFA) 4TICO with improved structural flexibility, leading to enhanced performance of organic photovoltaics by optimizing bulk heterojunction morphology and reducing structural defects. In-depth investigation of the NFA's structural properties in relation to solar cell performance and charge transport is conducted, demonstrating improved short-circuit current and fill factor.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Materials Science, Multidisciplinary
Hanyang Ye, Sameer Vajjala Kesava, Josue F. Martinez Hardigree, Roisin E. Brown, Giulio Mazzotta, Ross Warren, Peter J. Skabara, Moritz Riede
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
