Article
Chemistry, Physical
Avinash P. Jadhav, Ambarish Kumar Singh, Ashakiran Maibam, Sailaja Krishnamurty, Kothandam Krishnamoorthy, Jayaraj Nithyanandhan
Summary: In this study, a series of unsymmetrical squaraine dyes were designed and synthesized to improve the efficiency of dye-sensitized solar cells (DSSC) by cyclization and incorporation of alkyl groups. The highest efficiency achieved was 4.78%.
Article
Materials Science, Multidisciplinary
Kota Mori, Yuki Kurokawa, Sai Kiran Mavileti, Shyam S. Pandey
Summary: Novel far-red sensitive symmetrical squaraine dyes with alkyl chain terminal modification for multiple functionalities are designed. Iodine terminal modification enhances dye aggregation and binding strength, while imidazole terminal modification shows the opposite effect. The newly designed dyes demonstrate efficient photo sensitization and photon harvesting in dye-sensitized solar cells.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jialing Hu, Bingjie Zhao, Rongrong Wen, Xuebo Zhang, Yunxiang Zhang, Daniel S. S. Kohane, Qian Liu
Summary: Researchers have developed a new design strategy using a squaraine-based dye to enhance the light absorption ability and stability of upconversion nanoparticles. The dye, SQ-739, has a maximum absorption at 739 nm and shows improved chemical- and photostability compared to the commonly used cyanine-based dye IR-806. The study provides a new approach for developing highly stable and efficient NIR upconversion probes.
Article
Chemistry, Multidisciplinary
Jonathon Watson, Roberta R. Rodrigues, Jared H. Delcamp
Summary: This study reports two squaraine dyes with unsymmetrical cores as near-infrared dyes in dye-sensitized solar cells (DSCs). The dyes were characterized through absorption spectroscopy, computational interrogation, and electrochemical analysis. After optimizing the DSC devices, the squaraine dyes showed high photocurrent output and conversion efficiency, complemented with commercial organic dyes.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Chemistry, Physical
Suryapratap J. Sharma, Jyoti Prasad, Saurabh S. Soni, Nagaiyan Sekar
Summary: This study designed and synthesized coumarin-based sensitizers in conjugation with common phenyl as a π-linker and ethyl-2-cyanoacrylate (SPDSSC 7) and 2-cyanoacrylic acid (SPDSSC 8) as an anchor to determine their performance in dye-sensitized solar cells. The results showed that 2-cyanoacrylic acid-based sensitizer (SPDSSC 8) performed better than ethyl-2-cyanoacrylate-based sensitizer (SPDSSC 7) with a thicker coating of TiO2. The calculations and analysis revealed the relationship between different properties and the efficiency of electron transfer between the sensitizer and TiO2, which ultimately affected the DSSC performance.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Xintong Chen, Wei Zheng
Summary: Co-sensitization of Ag2S QDs and N719 dye in liquid-junction film solar cells improves light absorption and enhances photovoltaic performance. The introduction of Ag2S QDs reduces interface impedance and increases the lifetime of photo-excited carriers.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Fatima Santos, Dzmitry Ivanou, Adelio Mendes
Summary: Dye-sensitized solar cells (DSSCs) have unique features such as colorfulness, potential transparency, flexibility, and low cost, suitable for indoor and outdoor applications. However, compared to conventional DSSCs, MDSSCs have lower power conversion efficiencies.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Sultan A. Al-horaibi, Abdel-Basit Al-Odayni, Abdulmajeed Alezzy, Mohammed ALSaeedy, Arwa Al-Adhreai, Waseem Sharf Saeed, Ahmed Hasan
Summary: The synthesis of SQI-5 and SQI-6 dyes with -SO3H and -COOH functional groups provides a promising avenue to enhance the efficiency of dye-sensitized solar cells (DSSCs) in the near-infrared (NIR) region. These newly developed dyes exhibit exceptional solubility in various organic solvents. The SQI-6 dye, featuring -COOH anchoring group, demonstrates the best photovoltaic performance among the investigated sensitizers.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Review
Chemistry, Multidisciplinary
Ana Belen Munoz-Garcia, Iacopo Benesperi, Gerrit Boschloo, Javier J. Concepcion, Jared H. Delcamp, Elizabeth A. Gibson, Gerald J. Meyer, Michele Pavone, Henrik Pettersson, Anders Hagfeldt, Marina Freitag
Summary: Dye-sensitized solar cells (DSCs) and dye-sensitized photoelectrochemical cells (DSPECs) have seen a revival in recent years as they offer unique properties such as low cost, non-toxic materials, colorfulness, transparency, and efficiency in low light conditions. This review covers advancements in DSC technology over the past decade, including theoretical studies, characterization techniques, materials, applications, and commercialization efforts by various companies.
CHEMICAL SOCIETY REVIEWS
(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
Chemistry, Multidisciplinary
Ambarish Kumar Singh, Munavvar Fairoos Mele Kavungathodi, Attila J. Mozer, Kothandam Krishnamoorthy, Jayaraj Nithyanandhan
Summary: Alkyl group wrapped donor-acceptor-donor (D-A-D) based unsymmetrical squaraine dyes were used to sensitize DSSCs in different solvents, revealing that sensitizing in a bad solvent led to better photovoltaic performance, while sensitizing in a good solvent resulted in the formation of aggregates that reduced device efficiency.
Review
Environmental Sciences
Mary Rosana Nalzala Thomas, Vincent Joseph Kanniyambatti Lourdusamy, Aparna Annamalai Dhandayuthapani, Vijayalakshmi Jayakumar
Summary: The emergence of novel technologies has led to the necessity for environmental and economic integration, with a focus on energy consumption. Renewable resources like solar and wind energy are being opted for to meet future needs, with dye-sensitized solar cells considered as a better alternative due to their ability to function under various conditions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Shengbo Zhu, Yongliang Liu, Yilin Su, Xiaoling Niu, Bingyang Lu, Hongwei Zhou, Wenzhi Zhang, Weixing Chen, Ran Chen, Xinbing Chen, Zhongwei An
Summary: Inhibition of electron recombination and dye aggregation is an effective strategy to enhance the power conversion efficiency of co-sensitized solar cells. In this study, the addition of EA and the introduction of oxyalkyl chains in the triphenylamine donor were found to significantly improve the molar absorbance of dye molecules and inhibit charge recombination and dye aggregation, leading to an increase in short-circuit current density. Moreover, the PCE of dye-sensitized solar cells based on the ternary co-sensitization system was greatly improved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Ambarish Kumar Singh, Jayaraj Nithyanandhan
Summary: The study explored a series of amphiphilic indoline-based unsymmetrical squaraine dyes, where alkyl groups and glycolic chain were systematically modified to control self-assembly and improve interfacial properties. In nonaqueous DSSCs, increasing the number of carbon atoms in alkyl groups enhanced photovoltaic efficiencies. Addition of chenodeoxycholic acid improved efficiency, while increased carbon atoms in the alkyl groups had a detrimental effect on aqueous DSSC efficiency.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Applied
Sameera N. Al-Ghamdi, Huda A. Al-Ghamdi, Reda M. El-Shishtawy, Abdullah M. Asiri
Summary: Dye-sensitized solar cells (DSSCs) offer a cost-effective environmental solution for renewable energy production compared to traditional silicon solar cells. This review focuses on the importance of dye design and synthetic strategies for efficient dye chromophores in DSSCs, highlighting the impact of different factors on photovoltaic performance and discussing possibilities for improving spectral coverage and stability.
Article
Chemistry, Organic
Geeta Devi Yadav, Pooja Chaudhary, Balaram Pani, Surendra Singh
Summary: Chiral transition metal complexes with privileged ligands are efficient catalysts for various asymmetric organic transformations. Transition metal complexes of C1-symmetric pyrrolidine-based ligands have been widely used in asymmetric organic reactions. However, a comprehensive review article on the transition metal complexes of chiral C1-symmetric pyrrolidine-based ligands derived from (L)-proline has not been published.
TETRAHEDRON LETTERS
(2024)
