Article
Engineering, Electrical & Electronic
Subhrajit Konwar, Pramod K. Singh, Pawan Dhapola, Abhimanyu Singh, Serguei V. Savilov, Muhd Zu Azhan Yahya, Sirin Siyahjani Gultekin, Burak Gultekin
Summary: This paper deals with the synthesis, characterization, and application of low-viscosity ionic liquids as dopants and biopolymers as the host. The ionic liquid enhances the ionic conductivity and thermal stability of the biopolymer electrolyte, leading to the development of highly conducting ionic-liquid-doped biopolymer electrolyte-based devices such as electrochemical double-layer capacitors and dye-sensitized solar cells.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Yogendra Nath Chouryal, Rahul Kumar Sharma, Neeraj Tomar, Neelam Yadav, Heera Lal Kewat, Ishfaq Abdullah Wani, Sandeep Nigam, Praveen Kumar Surolia, Sri Sivakumar, Pushpal Ghosh
Summary: This study reports on the synthesis of phase pure, cubic BaGdF5:Er/Yb-doped nanocrystals using ionic liquids, which can be used as an absorption layer in dye-sensitized solar cells (DSSCs) to enhance solar energy conversion efficiency. Bright-green and red emissions were observed from the nanoparticles. The DSSCs with BaGdF5:Er3+(1%)/Yb3+(10%)/TiO2 absorption layer achieved the highest photon conversion efficiency of 7.75% and current density of 15.9 mA/cm2, showing a significant enhancement compared to those with only TiO2 layer.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Energy & Fuels
N. K. Farhana, Norshahirah M. Saidi, Shahid Bashir, S. Ramesh, K. Ramesh
Summary: Dye-sensitized solar cells (DSSCs) are a cost-effective alternative to conventional silicon solar cells, with high energy conversion efficiency, but stability issues with liquid-state DSSCs have led to the incorporation of polymer electrolytes. Various elements like host polymers, iodide salts, nanoparticles, and organic additives play a role in improving the performance and long-term stability of DSSCs, highlighting the importance of introducing additives for enhancing transport properties.
Article
Chemistry, Physical
Mahboobeh Rafieepoor Chirani, Elaheh Kowsari, Seeram Ramakrishna, Hossein Salar Amoli, Maryam Yousefzadeh, Amutha Chinnappan
Summary: Using environmentally-friendly ionic liquid-based composite electrolytes to assemble gel-DSSC improves device flexibility and sustainability. Covalently grafting 2-{(3-methyl-4-(2, 2, 2-trifluoroethoxy) pyridin-2-yl) methylsulfinyl}-1H-benzo(d)imidazole (lansoprazole, LNS) onto graphene oxide sheets enhances the conductivity of the electrolyte and improves the diffusion of the redox couple. The gel-DSSC device fabricated with optimized GO-LNS/IL shows significantly higher ionic conductivity and lower charge transfer resistance, achieving a maximum power conversion efficiency of 7.158%.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Shanmuganathan Venkatesan, Nguyen Huong Tra My, Hsisheng Teng, Yuh-Lang Lee
Summary: Thin films of solid-state polymer electrolytes (SSPEs) have been developed for dye-sensitized solar cells (DSCs) for the first time. Gel-electrolytes are prepared by utilizing a blend of poly(ethylene oxide) (PEO)/polyethylene glycol (PEG) and an acetonitrile-based iodide liquid electrolyte, and then cast onto a glass substrate to fabricate solvent-free SSPEs by evaporating the solvent. The SSPE films are sandwiched between photoelectrodes and counter electrodes to assemble the solid-state DSCs, and the PCE can be improved by introducing TiO2 nanofillers in the SSPEs. The high stability of the solid-state DSCs is demonstrated with a retention of 98% of their original efficiency after a 700-hour test period.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Mini Thomas, Sthuthi Jose
Summary: An environmentally friendly biopolymer nanofibrous membrane was fabricated and utilized as a quasi-solid state electrolyte in dye-sensitized solar cells. The membrane demonstrated good photovoltaic and electrochemical effects in the DSSC device, along with high stability.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Guillaume Bousrez, Olivier Renier, Brando Adranno, Volodymyr Smetana, Anja-Verena Mudring
Summary: The study found that 1,3-dialkyltriazolium iodides exhibit high chemical and thermal stability, with significant changes in electrolyte properties upon addition of different iodine content, where iodine addition usually leads to a decrease in melting point and an increase in conductivity. Compared to imidazolium iodides, triazolium compounds show higher efficiency and longer battery life, possibly due to their non-hygroscopic nature.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Review
Chemistry, Multidisciplinary
Sultana Rahman, Abdul Haleem, Muhammad Siddiq, Muhammad Khalid Hussain, Samina Qamar, Safia Hameed, Muhammad Waris
Summary: The financial progress of a country depends heavily on the energy sector, which is crucial for the growth and development of various industries. The use of renewable resources is essential to overcome the energy crisis and reduce the negative impact of hydrocarbon fuels on the environment. This review focuses on the dyes used in dye-sensitized solar cells (DSSC) and discusses the progress in both inorganic and natural dyes.
Article
Energy & Fuels
K. M. Manikandan
Summary: A novel quasi-solid-state polymer electrolyte was prepared using poly(vinyl alcohol)-polypyrrole, potassium iodide, iodine, and ethylene carbonate mixed with two types of ionic liquids, 1-methyl-3-propylimidazolium iodide (MPII) and 1-ethyl-3-methylimidazolium iodide (EMII). The prepared polymer electrolyte was structurally characterized and found that the MPII-incorporated polymer electrolytes had the lowest degree of crystallinity and activation energy. The ionic liquid-incorporated polymer electrolytes had higher values of dislocation density and microstrain. The MPII-based polymer electrolyte showed the lowest series resistance and the highest photo-conversion efficiency of 4.51% under 100mWcm(-2) illumination.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Multidisciplinary Sciences
Ghazi Aman Nowsherwan, Muhammad Aamir Iqbal, Sajid Ur Rehman, Aurang Zaib, Muhammad Irfan Sadiq, Muhammad Ammar Dogar, Muhammad Azhar, Siti Sarah Maidin, Syed Sajjad Hussain, Kareem Morsy, Jeong Ryeol Choi
Summary: The increase in global energy consumption has necessitated the exploration of alternative energy sources, particularly those harnessing photon energy. One important solution is the development of cost-effective and low-loss solar cells. The study investigates the performance of a dye-sensitized solar cell based on ZnPC:PC70BM and identifies key parameters for improving its efficiency.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Balasubramanian Karuppasamy, Balusamy Shenbagabalakrishnan, Venkatachari Gayathri
Summary: The photovoltaic performance of aqueous Al-ion electrolyte-based dye-sensitized solar cells was investigated, showing an efficiency 50% higher than the quoted value and an 80% enhancement with antimony-doped tin oxide compared to undoped tin oxide.
Article
Chemistry, Multidisciplinary
Ezgi Yilmaz Topuzlu, Burak Ulgut, Omer Dag
Summary: By utilizing LLC gel electrolyte and dye N719 in the manufacture of DSSC, the performance of the cell is enhanced. Increasing the water content in the gel phase leads to improved ion conductivity and short-circuit current of the DSSC, but has negative effects on the open-circuit voltage, equilibrium reaction, and dye anchoring over the titania surface.
Article
Chemistry, Physical
Kumarasinghe Divakara Mudiyanselage Sakunthala Pubudu Kumari Kumarasinghe, Buddhika C. Karunarathne, Shashiprabha P. Dunuweera, Rajapakse Mudiyanselage Gamini Rajapakse, Kirthi Tennakone, Gamaralalage Rajanya Asoka Kumara
Summary: The study investigates the effect of 4-tertiary-butylpyridine (TBP) on improving the performance of dye-sensitized solar cells. The presence of TBP increases the transport number of iodide ions and the ionic conductivity of the electrolyte. The optimized DSC with TBP shows a conversion efficiency of 7.94%, a high V-OC of 0.709 V, and J(SC) of 17.22 mA cm(-2), a 35% increase in efficiency compared to when TBP is not present.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Paper & Wood
Vidhya Selvanathan, Rosiyah Yahya, Md Shahiduzzaman, Mohd. Hafidz Ruslan, Ghulam Muhammad, Nowshad Amin, Md. Akhtaruzzaman
Summary: The intrinsic adhesive properties of starch and cellulose were used to enhance the performance of electrolytes in DSSC. Chemical modification and addition of ionic liquids were effective in improving the efficiency of the quasi-solid DSSC.
Review
Chemistry, Physical
Dheeraj Devadiga, M. Selvakumar, Prakasha Shetty, M. S. Santosh
Summary: Dye-sensitized solar cells are an efficient method of converting energy and have the potential to be a future energy source. Integration with rechargeable energy storage systems has addressed the issue of power output in photovoltaic conversion systems.
JOURNAL OF POWER SOURCES
(2021)
Article
Energy & Fuels
Andres A. Granados Focil, Sergio Granados Focil, Victor M. Conde Sotelo, Ronald Lionel Grimm, Federico Gonzalez Garcia, Eleazar Rojas Santiago, Carlos E. Santolalla Vargas, Marco A. Vera Ramirez, Jose Antonio de los Reyes Heredia
Article
Chemistry, Analytical
Lukasz Mendecki, Sergio Granados-Focil, Martin Jendrlin, Matthew Mold, Aleksandar Radu
ANALYTICA CHIMICA ACTA
(2020)
Article
Energy & Fuels
Pramod Mishra, Kelli Stockmal, Giuseppe Ardito, Mingjiang Tao, Steven Van Dessel, Sergio Granados-Focil
Article
Chemistry, Multidisciplinary
Peter W. Dillingham, Basim S. O. Alsaedi, Sergio Granados-Focil, Aleksandar Radu, Christina M. McGraw
Article
Chemistry, Multidisciplinary
Julia L. Martin, Roy Stoflet, Alexander D. Carl, Katarina M. Himmelberger, Sergio Granados-Focil, Ronald L. Grimm
Article
Chemistry, Physical
Jocelyn L. Mendes, Weiran Gao, Julia L. Martin, Alexander D. Carl, N. Aaron Deskins, Sergio Granados-Focil, Ronald L. Grimm
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Construction & Building Technology
Zhiying Xiao, Pramod Mishra, Alireza Mahdavi Nejad, Mingjiang Tao, Sergio Granados-Focil, Steven Van Dessel
Summary: Zero energy buildings (ZEBs) have attracted significant attention in the US, with the potential to achieve more cost-effective energy savings through new materials and systems that regulate building enclosure heat losses and gains. The study on thermo-optically responsive solid-solid phase change material (SS-PCM) coatings demonstrates their ability to reduce heat exchange in building enclosures and highlights the rooftop as the optimal location for installation. The findings also suggest that SS-PCM systems offer more thermal benefits and energy savings in warm climates compared to cold climates, presenting a promising solution for existing passive solar facades.
ENERGY AND BUILDINGS
(2021)
Article
Energy & Fuels
Jihan El Ouaragli, Zhiying Xiao, Mingjiang Tao, Sergio Granados-Focil, Steven Van Dessel
Summary: This study presents a novel and compact smart-polymer sorbent (SPS) thermal battery for controlled low-temperature thermal energy storage applications. The research reveals that diffusion-based mass transport is the limiting process affecting the SPS battery thermal performance. The study also provides insights and guidance for engineering emergent small-scale passive STES applications.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Ziyang Zhang, Geoffrey A. Tompsett, Sergio Granados-Focil, Christopher R. Lambert, Michael T. Timko
Summary: Design of solid acid catalysts for cellulose conversion is often guided by molecular level interactions, but this study applies colloid stability theory (DLVO) to provide a rational design strategy for targeted cellulose adsorption. An energy barrier, mainly due to electrostatic repulsion, prevents close contact between solid acid and cellulose, rather than thermal fluctuations. Carbon and metal oxides show potential for effective cellulose-solid acid interaction.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Feng Cheng, Geoffrey A. Tompsett, Daniela Valeska Fraga Alvarez, Carla Romo, Amy M. McKenna, Sydney F. Niles, Robert K. Nelson, Christopher M. Reddy, Sergio Granados-Focil, Alex D. Paulsen, Ruihan Zhang, Michael T. Timko
Summary: The study found that using nickel-based catalysts can effectively reduce char yield and improve energy recovery efficiency from food waste. Ni/ZrO2 and Ni/CeO2 catalysts show the greatest potential in controlling char growth and maximizing energy recovery.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Chemistry, Physical
Frank N. Crespilho, Graziela C. Sedenho, Diana De Porcellinis, Emily Kerr, Sergio Granados-Focil, Roy G. Gordon, Michael J. Aziz
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Yuxin Yang, Wendy Nason, Luis Smith, Sergio Granados Focil
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Thanaphorn Suk-In, Christopher Marks, Stephen Ross, Robert Bellin, Sergio Granados Focil
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Pramod Mishra, Mingjiang Tao, Steven Dessel, Sergio Granados Focil
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Sergio Granados Focil, Valeria Gutierrez-Venegas
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)