Article
Chemistry, Applied
Mohamed R. Elmorsy, Safa A. Badawy, Ehab Abdel-Latif, Mohammed A. Assiri, Tarik E. Ali
Summary: A series of new metal-free D-D-pi-A dyes (TMS-1-4) based on triphenylamine (TPA) and carbazole (Cz) have been designed and used in dye-sensitized solar cells (DSSCs) as strong donor species. These dyes exhibit strong absorption ability, which shows promise in improving the performance of DSSCs.
Article
Nanoscience & Nanotechnology
Vikash Kumar, Renu Gupta, Ajay Bansal
Summary: The impact of hydrothermal growth time on the synthesis of zinc oxide nanorods was studied, and the optimal growth time was identified as 9 hours. The addition of a passivating layer of titanium dioxide significantly increased the efficiency of dye-sensitized solar cells.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
M. Gomathi, A. Sankar, S. Kannan, Mohd. Shkir, Vasudeva Reddy Minnam Reddy
Summary: In this study, a photoelectrochemical system based on low-cost carbon black and tin selenide composite material was proposed. The physicochemical properties of the composite were analyzed, revealing its excellent electrocatalytic and charge transport properties in the solar cell. Compared to the platinum counter electrode, the DSSC with the composite material showed significantly improved performance.
CHEMICAL PHYSICS LETTERS
(2022)
Review
Energy & Fuels
Dheeraj Devadiga, Muthu Selvakumar, Prakasha Shetty, Mysore Sridhar Santosh, Raghu Subash Chandrabose, Smagul Karazhanov
Summary: In the context of increasing population, the importance of renewable and sustainable energy alternatives is emphasized. Scientists are focusing on producing cost-effective and high-performance clean energy appliances to meet the growing demand. Dye-sensitized solar cells (DSSCs) are highlighted as a leading material in modern solar cell technologies, with metal-free organic dyes like carbazole (CZ), triphenylamine (TPA), and phenothiazine (PTZ) derivatives being identified as suitable alternatives to traditional complexes. This review primarily discusses the latest developments in using CZ, TPA, and PTZ scaffolds for DSSC applications, emphasizing the correlation between molecular design and photovoltaic performance. Adjusting the physical properties of devices through strategic sensitizer design can improve device performance, with photovoltaic parameters presented for all dyes and application insights on CZ, TPA, and PTZ-based dyes provided following a systematic review.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Inorganic & Nuclear
K. Gomathi, S. Padmanathan, Atif Mossad Ali, A. T. Rajamanickam
Summary: A new Ni-doped molybdenum oxide counter electrode for dye-sensitized solar cells was proposed, showing high absorption in visible light and improved photoconversion efficiency. The optimized 10% NiMoO3 electrode exhibited outstanding performance, indicating potential for enhancing photovoltaic properties and electrocatalytic activity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
R. Gayathri, P. Rajeswaran, G. Raja, S. R. Bavaji, Noorul Ameen, Mohd. Shkir
Summary: In this study, photovoltaic performance driven rGO induced WO3 hybrid nanocomposites were successfully synthesized, showing high efficiency in dye sensitized solar cell applications.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Ismail Althagafi, Nashwa El-Metwaly
Summary: Five novel thiophene-based metal-free organic dyes (IS1-5) synthesized for study in DSSCs exhibit good potential as sensitizers, with IS-5 showing the highest photoconversion efficiency among them. The DFT results for these dyes align well with experimental outcomes, suggesting their suitability for enhancing charge transfer in TiO2.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Ahmed S. Radwan, Mohamed R. Elmorsy, Ehab Abdel-Latif, Mohamed M. Makhlouf, Safa A. Badawy
Summary: This investigation presents the synthesis and design of four innovative organic dyes (MRS-1-4) as co-sensitizers for dye-sensitized solar cells (DSSCs), which enhance the photovoltaic performance of the cells. Characterization and evaluation of the dyes' photovoltaic performance were conducted using various techniques. The co-sensitization of MRS-1-4 dyes with N719 led to a significant improvement in the power conversion efficiency of the cells.
Article
Chemistry, Physical
Yang Gao, Shenbin Dai, Jingzhi Zhu, Liang Wu, Liang Han, Yujin Li, Qing Ye, Yanhong Cui
Summary: Four novel A-D-pi-A pyridoquinazolinone-containing triphenylamine dyes were synthesized and applied in dye-sensitized solar cells (DSSCs). The incorporation of additional pyridoquinazolinone unit increased the charge recombination resistance and improved the Voc. The introduction of thiophene bridge broadened and red-shifted the absorption region, leading to enhanced light-harvesting ability, IPCE, and Jsc. Consequently, the dye with double pyridoquinazolinone units and thiophene bridge exhibited the highest photoelectric conversion efficiency of 5.19%.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Review
Chemistry, Physical
Afsaneh Farokhi, Hashem Shahroosvand, Fatemeh Zisti, Melanie Pilkington, Mohammad Khaja Nazeeruddin
Summary: This comprehensive review focuses on the application of triphenylamines (TPAs), a prominent class of organic molecules, in dye-sensitized/organic solar cells. By exploring synthesis strategies for TPA derivatives, researchers have successfully improved the power conversion efficiencies of the cells and provided strong support for future commercial applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Chaoqiang Liao, Kaiwen Zeng, Hanlun Wu, Qingliang Zeng, Hao Tang, Lingyun Wang, Herbert Meier, Yongshu Xie, Derong Cao
Summary: The use of pillar[5]arene dyes can enhance the open-circuit voltage of DSSCs, while also inhibiting dye aggregation and charge recombination, leading to improved performance. Additionally, host-guest interactions with the electrolyte can further adjust the voltage and photocurrent of the DSSCs.
CELL REPORTS PHYSICAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
De Nguyen, Tuan Van Huynh, Vinh Son Nguyen, Phuong-Lien Doan Cao, Hai Truong Nguyen, Tzu-Chien Wei, Phuong Hoang Tran, Phuong Tuyet Nguyen
Summary: Developing two new electrolyte-based deep eutectic solvents for dye-sensitized solar cells, researchers have achieved simple preparation, low cost, and biodegradability. The two solvents show comparable conversion efficiency to a popular ionic liquid, providing a low-cost and eco-friendly option for massive production of solar cells.
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)
Article
Chemistry, Physical
Faezeh Pakravesh, Mohammad Izadyar, Foroogh Arkan
Summary: This study investigated the photovoltaic properties of organic dyes based on triphenylamine with a D-pi-A structure theoretically. Different pi-conjugated systems and electron acceptors were found to affect the performance of dye-sensitized solar cells (DSSCs), with TC601 dye showing the best charge transfer distance and smallest overlap of electron-hole distribution. Spectroscopic analysis revealed that H-P and F-P dyes have higher molecular absorption coefficients, and TC202, TC203, F-P, and T-F dyes exhibit a red shift. P1B and TC601 dyes showed the highest open circuit voltage and short circuit current density values, respectively, making them the best candidates for use in DSSCs due to their maximum incident photon to current conversion efficiency.
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY
(2021)
Article
Green & Sustainable Science & Technology
Lisa Borella, Luigi Vesce, Paolo Mariani, Jessica Barichello, Aldo Di Carlo, Nicola Trivellin, Eleonora Sforza
Summary: The integration of semi-transparent photovoltaics with photobioreactors can increase energy conversion efficiency and algal biomass production simultaneously. The application of monochromatic LEDs has a major impact on biomass growth and pigment productivity, with low intensity light being preferable for enhancing culture efficiency. Properly managing operative conditions is crucial to avoid energy losses when using LED lights on photobioreactors.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Materials Science, Ceramics
M. Kandasamy, S. Murugesan, M. Selvaraj, M. Mujahid Alam
Summary: This study investigates the amine-functionalized ZnO-NR/NH2/GO nanocomposites prepared by a solution route and their optical and electrical properties. The results show that the amine-functionalized ZnO-NR/NH2/GO-2 nanocomposite exhibits strong visible light absorption and achieves a high power conversion efficiency in dye-sensitized solar cells. The enhancement is primarily attributed to the incorporation of aminosilicate and GO on the surface of ZnO-NRs, which facilitates rapid electron transfer.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Harikrishnan Muniyasamy, Kandasamy Muthusamy, Muniyappan Chinnamadhaiyan, Murugesan Sepperumal, Siva Ayyanar, Manickam Selvaraj
Summary: The research focuses on the development of alternative hole-transporting materials (HTMs) for hybrid organic-inorganic perovskite solar cells (PSCs). A theoretical design of tetraphenylethene (TPE)-based HTMs with high performance is obtained, and the solubility is enhanced by replacing functional groups. The synthesized HTMs show promising potential for cost-effective and stable PSCs.
Article
Energy & Fuels
Sreekanth Mandati, K. Reshma Dileep, Ganapathy Veerappan, Easwaramoorthi Ramasamy
Summary: This study presents an economic, sustainable and scalable bar coating technique for the electron transport layer (ETL) of perovskite solar cells (PSCs). The bar coated ETL devices exhibit higher homogeneity and better performance stability compared to conventional spin coated ETL devices.
Review
Chemistry, Multidisciplinary
Ramya Krishna Battula, Chandran Sudakar, Puttaiah Bhyrappa, Ganapathy Veerappan, Easwaramoorthi Ramasamy
Summary: A new platform for research and development of inexpensive and efficient solar cells has emerged based on hybrid perovskite absorber material. Single-crystalline perovskite materials offer superior stability and improved performance compared to polycrystalline perovskites, making them more relevant for solar cell applications.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Physical
Stephen Raja Rubina, Philip Raja Stalin, C. Selva Meenatchi, Sepperumal Murugesan, Raju Ranjith Kumar
Summary: The syntheses of previously unreported epiminocyclohepta[b]pyrazolo[4,3-e]pyridines have been achieved through a microwave-assisted two-component domino strategy. These compounds exhibited weak fluorescence, which was selectively enhanced by the addition of Al3+ through chelation. Furthermore, the fluorescence of the probes could be turned on and off by sequential addition of different metal ions.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Ramya Krishna Battula, Ganapathy Veerappan, P. Bhyrappa, C. Sudakar, Easwaramoorthi Ramasamy
Summary: This study demonstrates the direct growth of single crystalline metal halide perovskite absorber films on charge selective contact layer coated substrates, which shows higher stability and endurance to ambient conditions compared to polycrystalline perovskite films. The use of antisolvent-assisted inverse temperature crystallization method results in ultra-stable circular shaped films suitable for photovoltaic applications.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Organic
K. Kumar, S. Murugesan, T. Muneeswaran, C. M. Ramakritinan
Summary: The article describes the synthesis and characterization of new coordination complexes of main group metals (Ba, Ca, Mg, Sr, and Pb) with 2-mercaptopyridine-3-carboxylic acid (H(2)Mpc) and hydrazine mixed ligands. The molecular formulae of the complexes were proposed based on analytical data obtained from various chemical and spectral analyses. The antibacterial and antifungal activity of the ligand and its complexes were also studied against five bacteria and four fungi.
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Maithili K. Rao, M. Selvakumar, M. G. Mahesha, Selvaraj Paramasivam, K. Reshma Dileep, Nimitha S. Prabhu, Ganapathy Veerappan, S. Senthilkumar, Sudha D. Kamath
Summary: By introducing 1D-pyrrolidinium lead iodide (PyPbI3) into 3D-Methylammonium lead iodide (MAPbI3) perovskite, the stability issues of perovskites have been improved and solar cells have been successfully fabricated.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Physics, Condensed Matter
N. Murugesan, S. Suresh, M. Kandasamy, S. Murugesan, N. Pugazhenthiran, V. Prasanna Venkatesh, B. K. Balachandar, S. Karthick Kumar, M. N. M. Ansari
Summary: In this study, reduced graphene oxide integrated copper oxide nanocomposite thin film solar selective absorber coatings were successfully prepared on aluminum substrate using dip-coating method. The coatings were characterized and analyzed in detail. The results showed that the coatings had highly crystalline monoclinic structured CuO particles distributed on graphene sheets, exhibiting high absorptance and low emittance, indicating promising solar absorption performance.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Chemistry, Physical
Anooja Jagadeesh, Ganapathy Veerappan, P. Sujatha Devi, K. N. Narayanan Unni, Suraj Soman
Summary: Harnessing energy from indoor light using dye-sensitized solar cells (DSCs) has gained momentum as an efficient and sustainable alternative to reduce the environmental impact of batteries. Researchers have developed an innovative TiO2/ZnO bilayer architecture that can deliver higher open-circuit potential (V-OC) by controlling the conduction band position and recombination losses. These bilayer devices achieved record V-OCs under different light sources and could autonomously power a temperature sensor. This work highlights the potential of modifying semiconductor and device architecture to make photovoltaic devices autonomous and sustainable.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
B. Kumaar Swamy Reddy, Smrutiranjan Panda, Easwaramoorthi Ramasamy, Sushmee Badhulika, Ganapathy Veerappan, Pramod H. Borse
Summary: In this study, the toxic Pb2+ cation in methyl ammonium lead halide (MAPbX3) was partially or completely replaced by eco-friendly Mg-ions, resulting in the synthesis of MAPb(X)Mg(1-X)Cl(2)I perovskite. The synthesized perovskite showed promising performance as a self-powered photodetector, offering an eco-friendly alternative to traditional MAPbX(3) by replacing nearly 50% of toxic Pb with benign Mg2+.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
B. Kumaar Swamy Reddy, Smrutiranjan Panda, Easwaramoorthi Ramasamy, Sushmee Badhulika, Ganapathy Veerappan, Pramod H. Borse
Summary: This study attempts to address the toxicity issue of methyl ammonium lead halide (MAPbX3) by substituting the toxic Pb2+ ion with eco-friendly Mg2+ ions. MAPb(X)Mg(1-X)Cl(2)I materials were synthesized and used for the fabrication of self-powered photodetectors, demonstrating the importance of Mg ion substitution for eco-friendly perovskite opto-electronic devices.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
K. Reshma Dileep, Thulasi Raman Elumalai, Easwaramoorthi Ramasamy, S. Mallick, T. N. Rao, Ganapathy Veerappan
Summary: This study presents the development of an ambient temperature curable TiO2 mesoporous layer for perovskite solar cells, which eliminates the need for a binder and enables the use of environmentally friendly solvents. The TiO2 layer was synthesized through a hydrothermal method and optimized for various coating techniques. The effects of annealing temperatures on the properties of the TiO2 films were investigated, and the TiO2 ETL annealed at 50 degrees Celsius showed the highest efficiency in carbon-based perovskite solar cells.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Battula Ramya Krishna, Ganapathy Veerappan, P. Bhyrappa, C. Sudakar, Easwaramoorthi Ramasamy
Summary: This study reports PSC devices fabricated using inorganic CuSCN and organic spiro-OMeTAD as HTMs, demonstrating excellent stability and photovoltaic performance. The inorganic CuSCN HTM exhibits good moisture resistance and retains over 70% of its initial PCE after 1500 hours.
MATERIALS ADVANCES
(2022)
Article
Engineering, Environmental
N. Pugazhenthiran, S. Murugesan, T. Muneeswaran, S. Suresh, M. Kandasamy, H. Valdes, M. Selvaraj, A. Dennyson Savariraj, R. V. Mangalaraja
Summary: The study successfully prepared monodispersed silver quantum dots of sub 5 nm range using sweet lime peel extract, showing high photoluminescence quenching and strong biocidal effects.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
