Article
Materials Science, Multidisciplinary
Ghada A. Abdelwahab, Mohamed A. Ismail, Ahmed A. Fadda, Mohamed R. Elmorsy
Summary: This study introduces five new bithienylnicotinonitrile-based organic dyes (coded GA-1-5) designed for use in dye-sensitized solar cells (DSSCs). The researchers conducted a detailed analysis of the dyes' characteristics and found that they exhibit intense UV-vis absorption and high molar extinction coefficients, making them ideal for use in DSSCs. When tested, devices co-sensitized with the dyes showed significantly improved power conversion efficiencies (PCEs) compared to DSSCs sensitized with N3 alone. These findings represent a significant advancement in solar cell technology, paving the way for more efficient and sustainable energy solutions.
Article
Chemistry, Physical
Wenjun Liu, Yaole Peng, Fantai Kong, Rahim Ghadari, Chundie Zhao, Jinxue Zhang
Summary: This paper presents the development of a resonance-structured squaraine HTM D12, which not only exhibits high hole extraction and mobility, but also passivates perovskite defects, leading to improved efficiency and stability of solar cells.
MATERIALS TODAY ENERGY
(2023)
Article
Chemistry, Physical
Mohammed Abdelhameed, Mostafa F. Abdelbar, Mohamed Esmat, Wipakorn Jevasuwan, Naoki Fukata
Summary: This study investigates the hole-injection characteristics of dopant-free vanadium oxide (VOx) semiconductor thin films. The crystal structure of solution-processable VOx films changes with different annealing atmospheres. The VOx films show effective hole-injection properties due to their high work function, wide band gap, and presence of oxygen deficiencies. The vacuum-annealed VO2-x (B) film exhibits the best hole-injection ability. The use of VOx films as hole-injection layers has significant implications for the development of low-cost and durable electronics and optoelectronics devices.
Article
Multidisciplinary Sciences
Arumugam Pirashanthan, Dhayalan Velauthapillai, Neil Robertson, Punniamoorthy Ravirajan
Summary: This study focuses on the role of Lithium doped Poly(3-hexylthiophene)(P3HT) in metal-free quaterthiophene (4T) dye treated Titanium dioxide (TiO2) based hybrid solar cells. The efficiency of the dye treated hybrid solar cells with Lithium doped P3HT is nearly four times higher than the control devices. The enhanced efficiency is mainly attributed to efficient charge collection and improved light harvesting properties of Lithium doped P3HT polymer.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Tharmakularasa Rajaramanan, Fatemeh Heidari Gourji, Yogenthiran Elilan, Shivatharsiny Yohi, Meena Senthilnanthanan, Punniamoorthy Ravirajan, Dhayalan Velauthapillai
Summary: In this study, a natural dye from the flowers of Mussaenda erythrophylla was extracted separately in ethanol and de-ionized water and employed as a photosensitizer in DSSCs. The stability and adsorption of the dye on the P25-TiO2 surface were confirmed. The optical properties of the dye were studied with regard to dye concentration and pH. DSSCs fabricated with the dye extracted in ethanol showed the best power conversion efficiency due to the optimal absorption of light in the visible region.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Physical
Fatima Santos, Carolina Hora, Dzmitry Ivanou, Adelio M. Mendes
Summary: Due to their high power conversion efficiency under indoor light, dye-sensitized solar cells (DSSCs) are considered a promising energy technology for future IoT devices and wireless sensors. Monolithic design DSSCs offer advantages in commercial production, such as straightforward processing, low cost, and compactness.
ACS APPLIED ENERGY MATERIALS
(2021)
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
Materials Science, Coatings & Films
Philipp G. Gruetzmacher, Michael Schranz, Chia-Jui Hsu, Johannes Bernardi, Andreas Steiger-Thirsfeld, Lars Hensgen, Manel Rodriguez Ripoll, Carsten Gachot
Summary: The power conversion efficiency (PCE) of PEB and PUB as sensitizers of dye-sensitized solar cells is investigated using first-principles calculations. Different adsorption models are constructed for PEB/PUB on the TiO2 surface, and their geometrical configurations and electronic properties are optimized. The obtained PCEs confirm the credibility of the current method and predict that PUB and PEB are promising candidate sensitizers for dye-sensitized solar cells.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Electrochemistry
Jeanet Conradie
Summary: This mini review briefly discusses the developments on the application of polypyridyl-based copper complexes in dye-sensitized solar cells (DSSCs). Copper complexes can be used as dye sensitizers and/or as redox mediators in DSSCs. The abundance and low cost of copper make it a cheaper and non-toxic alternative to the commonly used iodide/triiodide electrolyte redox couple and the expensive and rare ruthenium-based dyes.
ELECTROCHEMISTRY COMMUNICATIONS
(2022)
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)
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
Rishabh Raj, Himanshu Gupta, L. P. Purohit
Summary: In this study, five CdS/CdTe heterostructure solar cells were synthesized using various fabrication methods. The role of AZO, ZTO, and V2O5 layers in the solar cell operation was investigated through measurements of structural, optical, and electrical characteristics. The results showed that AZO, ZTO, and V2O5 layers played an important role as charge selective layers in the heterostructure solar cell, with the V2O5-equipped cell exhibiting better performance and higher efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Geetam Richhariya, Anil Kumar
Summary: The study utilized a combination of two synthetic organic dyes, eosin Y and bromophenol, for dye-sensitized solar cells (DSSCs) and confirmed the properties and purity of the materials through various analysis methods. The results showed that the use of mixed dye significantly enhanced the power conversion efficiency of the photovoltaic cells.
Article
Materials Science, Multidisciplinary
Xiao-Feng Shen, Motonori Watanabe, Atsushi Takagaki, Jun Tae Song, Tatsuki Abe, Daisuke Kawaguchi, Keiji Tanaka, Tatsumi Ishihara
Summary: Squaraine dyes, with strong and narrow absorption properties in the near-infrared region, have been synthesized and used as dye sensitizers for a dye-sensitized photocatalytic system. The system, composed of squaraine dye SA1 and Pt-loaded TiO2 powder photocatalyst (SA1/Pt-TiO2), exhibited good hydrogen production performance and a high apparent quantum yield under monochromatic light irradiation. However, the photocatalytic activity of SA1/Pt-TiO2 decreased due to photodecomposition. Spectroscopic measurements were performed to investigate the mechanism and structure of the decomposition process.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Applied
Fengsheng Ge, Fang Xu, Kun Gong, Dongzhi Liu, Wei Li, Lichang Wang, Xueqin Zhou
Summary: The design and synthesis of two novel D-A dyes cTPAPh-NO2 and cTPABT-PyCN2 were reported, and their photophysical and electrochemical properties were investigated. The attachment of carboxyl groups reduced the light harvesting and intramolecular charge separation ability of cTPAPh-NO2. In contrast, cTPABT-PyCN2 exhibited weak fluorescence and efficient intramolecular charge separation characteristics. These dyes showed promising potential as p-type sensitizers with effective charge separation characteristics in dye-sensitized solar cells.
Editorial Material
Chemistry, Physical
Jishnudas Chakkamalayath, Nathaniel Hiott, Prashant V. Kamat
Summary: A (PEA)(2)PbI4 (2D) layer undergoes a transformation on a MAPbI(3) (3D) film upon photoirradiation and thermal treatment. The decrease in absorption and emission of the 2D layer during light and heat exposure indicates the migration of PEA(+) cation within the 3D film, highlighting the dynamic nature of the 2D/3D interface and intermixing of the two phases.
ACS ENERGY LETTERS
(2023)
Editorial Material
Chemistry, Multidisciplinary
Jillian M. Buriak, Deji Akinwande, Natalie Artzi, C. Jeffrey Brinker, Cynthia Burrows, Warren C. W. Chan, Chunying Chen, Xiaodong Chen, Manish Chhowalla, Lifeng Chi, William Chueh, Cathleen M. Crudden, Dino Di Carlo, Sharon C. Glotzer, Mark C. Hersam, Dean Ho, Tony Y. Hu, Jiaxing Huang, Ali Javey, Prashant V. Kamat, Il-Doo Kim, Nicholas A. Kotov, T. Randall Lee, Young Hee Lee, Yan Li, Luis M. Liz-Marzan, Paul Mulvaney, Prineha Narang, Peter Nordlander, Rahmi Oklu, Wolfgang J. Parak, Andrey L. Rogach, Mathieu Salanne, Paolo Samori, Raymond E. Schaak, Kirk S. Schanze, Tsuyoshi Sekitani, Sara Skrabalak, Ajay K. Sood, Ilja K. Voets, Shu Wang, Shutao Wang, Andrew T. S. Wee, Jinhua Ye
Editorial Material
Chemistry, Inorganic & Nuclear
Shelley Minteer, Jingguang Chen, Song Lin, Cathleen Crudden, PrashantV. Kamat, Marisa Kozlowski, Geraldine Masson, Scott J. Miller
INORGANIC CHEMISTRY
(2023)
Editorial Material
Chemistry, Organic
Shelley Minteer, Jingguang Chen, Song Lin, Cathleen Crudden, Stefanie Dehnen, Prashant V. Kamat, Marisa Kozlowski, Geraldine Masson, Scott J. Miller
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Jeffrey T. DuBose, Prashant Kamat
Summary: Energy and electron transfer processes play a crucial role in regulating the excited states in light harvesting assemblies for photocatalytic and optoelectronic applications. In this study, we investigated the impact of acceptor pendant group functionalization on the energy and electron transfer between CsPbBr3 perovskite nanocrystals and rhodamine-based acceptor molecules. The results showed that acceptor functionalization significantly influenced the rate of energy transfer and the competing electron transfer pathway. The findings highlight the importance of considering the structural influence of acceptor moieties for excited state interactions in nanocrystal-molecular hybrids.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Editorial Material
Chemistry, Organic
Shelley Minteer, Jingguang Chen, Song Lin, Cathleen Crudden, Stefanie Dehnen, Prashant V. Kamat, Marisa Kozlowski, Geraldine Masson, Scott J. Miller
Editorial Material
Chemistry, Physical
Shelley Minteer, Jingguang Chen, Song Lin, Cathleen Crudden, Stefanie Dehnen, Prashant Kamat, Marisa Kozlowski, Geraldine Masson, Scott J. Miller
Editorial Material
Chemistry, Physical
Prashant V. Kamat
ACS ENERGY LETTERS
(2023)
Editorial Material
Chemistry, Physical
Prashant V. Kamat
ACS ENERGY LETTERS
(2023)
Editorial Material
Chemistry, Physical
Shelley Minteer, Jingguang Chen, Song Lin, Cathleen Crudden, Stefanie Dehnen, Prashant V. Kamat, Marisa Kozlowski, Geraldine Masson
ACS ENERGY LETTERS
(2023)
Editorial Material
Chemistry, Analytical
Shelley Minteer, Jingguang Chen, Song Lin, Cathleen Crudden, Stefanie Dehnen, Prashant V. Kamat, Marisa Kozlowski, Geraldine Masson, Scott J. Miller
ACS MEASUREMENT SCIENCE AU
(2023)
Editorial Material
Chemistry, Multidisciplinary
Shelley Minteer, Jingguang Chen, Song Lin, Cathleen Crudden, Stefanie Dehnen, Prashant V. Kamat, Marisa Kozlowski, Geraldine Masson, Scott J. Miller
ACS ORGANIC & INORGANIC AU
(2023)
Article
Chemistry, Physical
Jishnudas Chakkamalayath, Prashant V. Kamat
Summary: This study elucidates the excited-state interactions between a rubrene dye and a perylene derivative (DBP), commonly used in upconversion molecular assemblies, through steady-state and time-resolved emission experiments. It confirms singlet-energy transfer with a high efficiency of up to 94% in rubrene-DBP films. The rate constant of energy transfer determined from emission lifetime measurements is 1.4 x 10(9) s(-1). The factors controlling singlet energy transfer and its role in designing light energy harvesting assemblies are discussed.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
News Item
Chemistry, Physical
Gary P. Wiederrecht, Renaud Bachelot, Hui Xiong, Konstantinos Termentzidis, Alexandre Nomine, Jier Huang, Prashant V. Kamat, Elena A. Rozhkova, Anirudha Sumant, Michele Ostraat, Prashant K. Jain, Chris Heckle, Jie Li, Krzysztof Z. Pupek
ACS ENERGY LETTERS
(2023)
Editorial Material
Chemistry, Physical
Prashant V. Kamat
ACS ENERGY LETTERS
(2023)