Blar i HVL Open på forfatter "Velauthapillai, Dhayalan"
-
Polymer/Fullerene Blend Solar Cells with Cadmium Sulfide Thin Film as an Alternative Hole-Blocking Layer
Thanihaichelvan, Murugathas; loheeswaran, Selvadurai; Balashankar, Kailasabathy; Velauthapillai, Dhayalan; Ravirajan, Punniyamoorthy (Journal article; Peer reviewed, 2019)In this work, chemical bath-deposited cadmium sulfide (CdS) thin films were employed as an alternative hole-blocking layer for inverted poly(3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM) bulk ... -
Potential transition and post-transition metal sulfides as efficient electrodes for energy storage applications: review
Thirunavukkarasu, Kajana; Pirashanthan, Arumugam; Velauthapillai, Dhayalan; Yuvapragasam, Akila; Yohi, Shivatharsiny; Ravirajan, Punniamoorthy; Senthilnanthanan, Meena (Peer reviewed; Journal article, 2022)Electrochemical energy storage has attracted much attention due to the common recognition of sustainable energy development. Transition metal sulfides and post-transition metal sulfides have been intensively been focused ... -
Powder pressed cuprous iodide (CuI) as a hole transporting material for perovskite solar cells
Uthayaraj, Siva; Karunarathne, DGBC; Kumara, GRA; Murugathas, Thanihaichelvan; Rasalingam, Shivatharsiny; Rajapakse, R.M.G.; Ravirajan, Punniyamoorthy; Velauthapillai, Dhayalan (Peer reviewed; Journal article, 2019)This study focuses on employing cuprous iodide (CuI) as a hole-transporting material (HTM) in fabricating highly efficient perovskite solar cells (PSCs). The PSCs were made in air with either CuI or 2,2′,7,7′-Tetrakis[N, ... -
Properties of novel non-silicon materials for photovoltaic applications: A first-principle insight
Rasukkannu, Murugesan; Velauthapillai, Dhayalan; Bianchini, Federico; Vajeeston, Ponniah (Journal article; Peer reviewed, 2018)Due to the low absorption coefficients of crystalline silicon-based solar cells, researchers have focused on non-silicon semiconductors with direct band gaps for the development of novel photovoltaic devices. In this study, ... -
Quaternary Cu2FeSnS4/PVP/rGO Composite for Supercapacitor Applications
Isacfranklin, Melkiyur; Yuvakkumar, Rathinam; Ravi, Ganesan; Saravanakumar, Balasubramaniam; Pannipara, Mehboobali; Al-Sehemi, Abdullah G.; Velauthapillai, Dhayalan (Peer reviewed; Journal article, 2021)Electrochemical energy storage is a current research area to address energy challenges of the modern world. The Cu2FeSnS4/PVP/rGO-decorated nanocomposite using PVP as the surface ligand was explored in a simple one-step ... -
Rare earth metal (Sm)-doped NiMnO<inf>3</inf> nanostructures for highly competent alkaline oxygen evolution reaction
Swathi, S; Yuvakkumar, R; Ravi, G; Al-Sehemi, A; Velauthapillai, Dhayalan (Peer reviewed; Journal article, 2022)In the present work, samarium-doped nickel manganese oxide was produced by employing a straightforward co-precipitation method. A peak with a 2θ of 36° corresponded to the (110) plane confirming the formation of the ... -
Recent progress and approaches on transition metal chalcogenides for hydrogen production
Shanmugaratnam, Sivagowri; Yogenthiran, Elilan; Koodali, R; Ravirajan, Punniamoorthy; Velauthapillai, Dhayalan; Shivatharsiny, Yohi (Peer reviewed; Journal article, 2021)Development of efficient and affordable photocatalysts is of great significance for energy production and environmental sustainability. Transition metal chalcogenides (TMCs) with particle sizes in the 1–100 nm have been ... -
A Review on Cs-Based Pb-Free Double Halide Perovskites: From Theoretical and Experimental Studies to Doping and Applications
Gourji, Fatemeh Heidari; Velauthapillai, Dhayalan (Peer reviewed; Journal article, 2021)Despite the progressive enhancement in the flexibility of Pb-based perovskites for optoelectronic applications, regrettably, they are facing two main challenges; (1) instability, which originates from using organic components ... -
Review on Perovskite Semiconductor Field–Effect Transistors and Their Applications
Abiram, Gnanasampanthan; Thanihaichelvan, Murugathas; Ravirajan, Punniamoorthy; Velauthapillai, Dhayalan (Peer reviewed; Journal article, 2022)Perovskite materials are considered as the most alluring successor to the conventional semiconductor materials to fabricate solar cells, light emitting diodes and electronic displays. However, the use of the perovskite ... -
Roles of Interfacial Modifiers in Inorganic Titania/Organic Poly(3-hexylthiophene) Heterojunction Hybrid Solar Cells
Pirashanthan, Arumugam; Kajana, Thirunavukarasu; Velauthapillai, Dhayalan; Shivatharsiny, Yohi; Bentouba, Said; Ravirajan, Punniamoorthy (Peer reviewed; Journal article, 2022)Hybrid Titanium dioxide/Poly(3-hexylthiophene) heterojunction solar cells have gained research interest as they have the potential to become cost-effective solar technology in the future. Limited power conversion efficiencies ... -
Ruthenium (Ru) Doped Titanium Dioxide (P25) electrode for dye sensitized solar cells
Rajaramanan, Tharmakularasa; Natarajan, Muthukumarasamy; Ravirajan, Punniamoorthy; Senthilnanthanan, Meena; Velauthapillai, Dhayalan (Peer reviewed; Journal article, 2020)In this study, P25-titanium dioxide (TiO2) was doped with ruthenium (Ru) by systematically varying the Ru content at 0.15, 0.30, 0.45 and 0.6 mol%. The synthesized Ru-doped TiO2 nanomaterials have been characterized by ... -
SnS2/TiO2 Nanocomposites for Hydrogen Production and Photodegradation under Extended Solar Irradiation
Shanmugaratnam, Sivagowri; Selvaratnam, B; Baride, Aravind; Koodali, R; Ravirajan, Punniamoorthy; Velauthapillai, Dhayalan; Shivatharsiny, Yohi (Peer reviewed; Journal article, 2021)Earth–abundant transition metal chalcogenide materials are of great research interest for energy production and environmental remediation, as they exhibit better photocatalytic activity due to their suitable electronic and ... -
Sr doped TiO2 photocatalyst for the removal of Janus Green B dye under visible light
Keerthana, S P; Yuvakkumar, R; Ravi, Ganesan; Thambidurai, M; Nguyen, Hung D.; Velauthapillai, Dhayalan (Peer reviewed; Journal article, 2023)Hydrothermal synthesis of pristine and Sr doped TiO2 is proposed. The synthesized products were studied for their physiochemical properties. 3% Sr-TiO2 showed a narrow bandgap, which facilitate an increase in oxygen ... -
Superior supercapacitive performance of Cu2MnSnS4 asymmetric devices
Isacfranklin, M.; Yuvakkumar, R.; Ravi, G.; Velauthapillai, Dhayalan; Pannipara, Mehboobali; Al-Sehemi, Abdullah G. (Peer reviewed; Journal article, 2021)Renewable energy sources are considered the cornerstone of achieving a sustainable future for today's modern world. In the current research on energy storage devices, transition metal sulfides are being explored as an ... -
Thermally Evaporated Copper Iodide Hole-Transporter for Stable CdS/CdTe Thin-Film Solar Cells
Thivakarasarma, Thuraisamykurukkal; Lakmal, Adikari Arachchige Isuru; Dassanayake, Buddhika Senarath; Velauthapillai, Dhayalan; Ravirajan, Punniamoorthy (Peer reviewed; Journal article, 2022)This study focuses on fabricating efficient CdS/CdTe thin-film solar cells with thermally evaporated cuprous iodide (CuI) as hole-transporting material (HTM) by replacing Cu back contact in conventional CdS/CdTe solar cells ... -
TiO2 as a Photocatalyst for Water Splitting—An Experimental and Theoretical Review
Eidsvåg, Håkon; Bentouba, Said; Vajeeston, Ponniah; Shivatharsiny, Yohi; Velauthapillai, Dhayalan (Journal article; Peer reviewed, 2021)Hydrogen produced from water using photocatalysts driven by sunlight is a sustainable way to overcome the intermittency issues of solar power and provide a green alternative to fossil fuels. TiO2 has been used as a ... -
Ultra- ordered array of CuCo2S4 microspheres on co-doped nitrogen, sulfur-porous graphene sheets with superior electrochemical performance for supercapacitor application
Gourji, Fatemeh Heidari; Velauthapillai, Dhayalan; Keykhaei, Mansoureh (Peer reviewed; Journal article, 2022)Engineering and designing unique morphologies is a smart way to tune the characteristics of the material. Here, in this work, beyond the existing knowledge, we have focused on developing novel methods for synthesis of high ... -
Well-Separated Photoinduced Charge Carriers on Hydrogen Production Using NiS<inf>2</inf>/TiO<inf>2</inf> Nanocomposites
Shanmugaratnam, Sivagowri; Ravirajan, Punniamoorthy; Yohi, Shivatharsiny; Velauthapillai, Dhayalan (Peer reviewed; Journal article, 2023)Photocatalytic hydrogen production is a sustainable and greenhouse-gas-free method that requires an efficient and abundant photocatalyst, which minimizes energy consumption. Currently, interests in transition metal ...