Article
Chemistry, Applied
D. N. David Ndaleh, Dinesh Nugegoda, Jonathon Watson, Hammad Cheema, Jared H. Delcamp
Summary: The study examines the use of four high photocurrent NIR-absorbing metal-free organic sensitizers with varying nitrogen-based donor groups in dye-sensitized solar cell devices. By comparing the performance of dyes with different donor groups, the researchers found that balancing donor size and dye loadings is critical for achieving higher performances in DSC dyes, particularly in accessing low energy photons near 900 nm.
Review
Optics
N. S. Noorasid, F. Arith, A. N. Mustafa, M. A. Azam, S. Mahalingam, P. Chelvanathan, N. Amin
Summary: Research on dye-sensitized solar cells (DSSCs) has made significant advancements in the past two decades, particularly in the study of flexible solar cells. However, the temperature limitations faced by plastic substrates pose a challenge to the performance of flexible DSSCs. Researchers have explored various methods to address this issue and discussed the application of different photoanode materials.
Article
Chemistry, Physical
Xinrui Xie, Yuyan Zhang, Yutong Ren, Lifei He, Yi Yuan, Jing Zhang, Peng Wang
Summary: Overcoming excited-state quenching and interfacial charge recombination is crucial for achieving efficient and durable dye-sensitized solar cells (DSSCs). Cografting a wide-energy-gap adsorbent and a low-energy-gap photosensitizer on a mesoporous titania film improves electron injection, hole injection, and interfacial charge recombination kinetics, leading to increased efficiency.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
M. Kandasamy, M. Selvaraj, C. Kumarappan, S. Murugesan
Summary: In this study, ethylenediamine functionalized titanium dioxide nanowires graphene oxide/silver nanoparticle plasmonic nanocomposites were synthesized and utilized as photoanodes in dye-sensitized solar cells. The results showed that the prepared nanocomposites exhibited strong light harvesting and improved dye loading, resulting in high conversion efficiency of solar energy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
V. Gowthambabu, Mrunal Deshpande, R. Govindaraj, V. K. Nithesh Krishna, M. Leela Charumathi, J. Manish Kumar, M. S. Dhilip Vignesh, R. Isaac Daniel, P. Ramasamy
Summary: This study synthesized highly phase pure anatase TiO2 microspheres using a low-cost hydrothermal route, characterized them using various analysis methods, and fabricated dye-sensitized solar cells. The results showed that the DSSC composed of prepared TiO2 microspheres exhibited a higher power conversion efficiency compared to commercial P25.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Multidisciplinary
Aghareed M. Tayeb, Ahmed A. A. Solyman, Mohamed Hassan, Tamer M. Abu el-Ella
Summary: This article introduces the use of the MATLAB/SIMULINK interface to create a generalized photovoltaic simulation model. The model incorporates the fundamental circuit equations of photovoltaic cells and takes into account the effects of solar radiation and temperature variations. The model allows for understanding the I-V and P-V curves of photovoltaic cells and can be used to forecast their behavior under different environmental conditions.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yunfei Jiao, Shuaishuai Liu, Zhongjin Shen, Le Mao, Yongjie Ding, Dan Ren, Felix Thomas Eickemeyer, Lukas Pfeifer, Dapeng Cao, Wenjuan Xu, Juan Song, Baoxiu Mi, Zhiqiang Gao, Shaik M. Zakeeruddin, Wei Huang, Michael Gratzel
Summary: Heteroaromatic units are commonly used as pi-spacers for sensitizers in dye-sensitized solar cells. The type of pi-spacer strongly influences the solar to electric power conversion efficiency of organic dyes, with electron-rich pi-spacers leading to higher efficiency. Molecular engineering plays a crucial role in developing high efficiency organic dyes for DSSCs.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Materials Science, Multidisciplinary
Mona A. Almutairi, W. A. Farooq, M. S. AlSalhi
Summary: This study involves the fabrication and photovoltaic characterization of dye-sensitized solar cells based on natural dye extracted from beetroot. The cells exhibited high absorption in the visible range and showed stable performance under different illumination intensities. Impedance measurements were also conducted to study the electrical properties of the cells.
CURRENT APPLIED PHYSICS
(2022)
Article
Chemistry, Applied
Shengzhong Li, Shuangyu Zhang, Shu Mei, Xiangfei Kong, Miao Yang, Wenjun Wu, Shuhua Zhang, Haijun Tan
Summary: The novel porphyrin dye T-2 with phenoxazine (POZ) as the donor unit showed significantly higher performance in dyesensitized solar cells compared to T-1. The butterfly-shaped structure and extra alkyl chain of POZ were identified as the main reasons for the improved efficiency observed in the T-2-based device.
Article
Chemistry, Inorganic & Nuclear
Anurag Roy, M. J. S. Mohamed, M. A. Gondal, Tapas K. Mallick, Asif Ali Tahir, Senthilarasu Sundaram
Summary: Dye-sensitized solar cells (DSSCs) can achieve enhanced performance by engineering the materials at the interface of different device components. The most commonly used photosensitizers for DSSCs are Ru (II) polypyridyl-based synthetic dyes, but they are expensive. This study explores the use of natural and metal-free organic dyes as alternatives to synthetic dyes, and introduces Cu-doped CdS as a co-sensitizer to improve light-harvesting. The introduction of Cu leads to a broad absorption range and enhances optical interaction with the N719 dye, resulting in improved photocurrent density and overall performance of the DSSC.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Energy & Fuels
Satish S. Patil, Rahul M. Mane, Kishorkumar Khot, Sawanta S. Mali, Chang Kook Hong, Popatrao N. Bhosale
Summary: In this study, a surfactant-assisted WO3 photoanode for DSSC was successfully designed using a single-step hydrothermal route. The surfactant's influence on the growth and photoresponse properties of dye-sensitized WO3 was investigated. The results showed improved photovoltaic performance, with a direct allowed type of electronic transition and a band gap energy ranging from 2.82 to 2.38 eV. The formation of pure hexagonal crystals and tuning in surface morphology from nanospheres to nanoflowers were also observed.
Review
Chemistry, Multidisciplinary
Xugeng Guo, Wenpeng Wu, Yuanyuan Li, Jinglai Zhang, Li Wang, Hans Agren
Summary: Upconversion technology has been increasingly used in solar cells to improve efficiency by harvesting infrared light from the sun. Research has focused on fundamental principles of upconversion, with techniques like incorporating upconverting nanophosphors directly into photoanodes and introducing plasmonic metal nanoparticles showing promising results. Other methods such as utilizing microlenses and organic IR antennas for field enhancement have also been explored.
CHINESE CHEMICAL LETTERS
(2021)
Review
Chemistry, Multidisciplinary
Zhemin Li, Qizhao Li, Chengjie Li, Yongshu Xie
Summary: Dye-sensitized solar cells (DSSCs) have the advantages of environmental friendliness, easy fabrication, and rich colors, making them promising for applications in architectural decoration and power supply for low energy devices. However, porphyrin dyes used in DSSCs still suffer from absorption defects and aggregation tendencies. In order to address these issues, various approaches have been developed to achieve panchromatic absorption and high efficiency.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Materials Science, Multidisciplinary
R. Sasikala, M. Kandasamy, S. Suresh, V. Ragavendran, V. Sasirekha, N. Pugazhenthiran, S. Murugesan, S. Alex Pandian, M. N. M. Ansari, J. Mayandi
Summary: A simple chemical reduction process was used to prepare a nanocomposite of strontium titanate perovskite nanoparticles (SrTiO3 NPs) embedded in reduced graphene oxide (RGO-SrTiO3 NC). The RGO-SrTiO3 NC exhibited an optical band gap of 3.24 eV and a significantly lower crystallite size (31.69 nm) compared to SrTiO3 NPs (56.93 nm). The presence of RGO in the RGO-SrTiO3 NC was confirmed by Raman investigation, and modification of SrTiO3 by RGO was revealed by XPS analysis. The DSSC fabricated using the RGO-SrTiO3 NC photoanode showed an enhanced efficiency of 5.42% compared to SrTiO3 NPs (2.59%) due to the highly conducting RGO.
Article
Materials Science, Multidisciplinary
Dheeraj Devadiga, M. Selvakumar, Deepak Devadiga, Selvaraj Paramasivam, T. N. Ahipa, Prakasha Shetty, S. Senthil Kumar
Summary: Here, a metal-free organic dye (CCPICPB) with panchromatic absorption in the near-infrared range was synthesized. The dye's photophysical properties were studied and validated through experimental and theoretical simulation. Pristine and calcium-doped TiO2 microspheres were synthesized using a solvothermal approach. The performance of CCPICPB dye on these materials was evaluated, with the Ca-TiO2 photoanode-based device showing higher efficiency. Co-sensitization of CCPICPB dye with Ru(II) dye resulted in further efficiency improvement, attributed to improved V-OC and J(SC) due to the dye's compensatory effect and inhibition of electron recombination.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.
