Electrical and optical properties of aluminium doped zinc oxide transparent conducting oxide films prepared by dip coating technique

Manjakkal, Libu; Packia Selvam, I.; Potty, S.N.; Shinde, R.S.

doi:10.1108/mi-06-2015-0058

Graphene–Graphite Polyurethane Composite Based High‐Energy Density Flexible Supercapacitors (2019)
Journal Article
Manjakkal, L., Navaraj, W. T., Núñez, C. G., & Dahiya, R. (2019). Graphene–Graphite Polyurethane Composite Based High‐Energy Density Flexible Supercapacitors. Advanced Science, 6(7), Article 1802251. https://doi.org/10.1002/advs.201802251

Energy autonomy is critical for wearable and portable systems and to this end storage devices with high-energy density are needed. This work presents high-energy density flexible supercapacitors (SCs), showing three times the energy density than simi... Read More about Graphene–Graphite Polyurethane Composite Based High‐Energy Density Flexible Supercapacitors.

Electrochemical device and method for its manufacture (2019)
Patent
Dahiya, R., & Manjakkal, L. Electrochemical device and method for its manufacture

Textile-Based Potentiometric Electrochemical pH Sensor for Wearable Applications (2019)
Journal Article
Manjakkal, L., Dang, W., Yogeswaran, N., & Dahiya, R. (2019). Textile-Based Potentiometric Electrochemical pH Sensor for Wearable Applications. Biosensors, 9(1), Article 14. https://doi.org/10.3390/bios9010014

In this work, we present a potentiometric pH sensor on textile substrate for wearable applications. The sensitive (thick film graphite composite) and reference electrodes (Ag/AgCl) are printed on cellulose-polyester blend cloth. An excellent adhesion... Read More about Textile-Based Potentiometric Electrochemical pH Sensor for Wearable Applications.

Energy autonomous electronic skin (2019)
Journal Article
García Núñez, C., Manjakkal, L., & Dahiya, R. (2019). Energy autonomous electronic skin. npj Flexible Electronics, 3(1), Article 1. https://doi.org/10.1038/s41528-018-0045-x

Energy autonomy is key to the next generation portable and wearable systems for several applications. Among these, the electronic-skin or e-skin is currently a matter of intensive investigations due to its wider applicability in areas, ranging from r... Read More about Energy autonomous electronic skin.

Cost-effective sensors and sensor nodes for monitoring environmental parameters (2018)
Journal Article
Vasiljevic, D., Zlebic, C., Stojanovic, G., Simic, M., Manjakkal, L., & Stamenkovic, Z. (2018). Cost-effective sensors and sensor nodes for monitoring environmental parameters. Facta Universitatis, Series: Mechanical Engineering, 31(1), 11-23. https://doi.org/10.2298/fuee1801011v

This paper reviews the design and characterization of humidity and pH sensors manufactured in the printed circuit board (PCB), ink-jet, and screen printing technologies. The first one (PCB technology) provides robust sensors with PET film which can b... Read More about Cost-effective sensors and sensor nodes for monitoring environmental parameters.

Flexible ZnO Nanowires-Graphene Stack by Hot Lamination Method (2018)
Presentation / Conference Contribution
Shakthivel, D., Yogeswaran, N., Manjakkal, L., & Dahiva, R. (2018, October). Flexible ZnO Nanowires-Graphene Stack by Hot Lamination Method. Presented at 2018 IEEE Sensors, New Delhi, India

Inorganic nanostructures on flexible substrates form key components for high performance flexible electronics. 1D (Nanowires) and 2D (graphene) nanostructures are inherently flexible, in addition to having attractive electronic properties. The utilit... Read More about Flexible ZnO Nanowires-Graphene Stack by Hot Lamination Method.

Energy Autonomous Sensors for Water Quality Monitoring (2018)
Presentation / Conference Contribution
Manjakkal, L., Nikbakhtnasrabadi, F., & Dahiya, R. (2018, October). Energy Autonomous Sensors for Water Quality Monitoring. Presented at 2018 IEEE Sensors, New Delhi

This work is aimed to investigate conductivity and temperature of a solution by using energy autonomous thick film sensors. A RuO 2 based thick film electrode is fabricated for conductivity sensor and an interdigitated electrode with graphite sensiti... Read More about Energy Autonomous Sensors for Water Quality Monitoring.

Enhanced Triboelectric Nanogenerator Performance via an Optimised Low Permittivity, Low Thickness Substrate (2018)
Presentation / Conference Contribution
Min, G., Manjakkal, L., Mulvihill, D. M., & Dahiya, R. S. (2018, October). Enhanced Triboelectric Nanogenerator Performance via an Optimised Low Permittivity, Low Thickness Substrate. Presented at 2018 IEEE Sensors, New Delhi

With electrical power generated from mechanical contact, the triboelectric nanogenerators (TEN Gs) have attracted attention recently as a promising route to realising self-powered sensors (e.g. tactile sensors, biomedical sensors etc.). Due to their... Read More about Enhanced Triboelectric Nanogenerator Performance via an Optimised Low Permittivity, Low Thickness Substrate.

Bio-Organic Glycine Based Flexible Piezoelectric Stress Sensor for Wound Monitoring (2018)
Presentation / Conference Contribution
Hosseini, E. S., Manjakkal, L., & Dahiya, R. (2018, October). Bio-Organic Glycine Based Flexible Piezoelectric Stress Sensor for Wound Monitoring. Presented at 2018 IEEE Sensors, New Delhi

The application of controlled mechanical stress on a wound site can accelerate the wound healing by improving the cellular proliferation during tissue regeneration. To facilitate this there is need to monitor the applied stress around the wound site... Read More about Bio-Organic Glycine Based Flexible Piezoelectric Stress Sensor for Wound Monitoring.

Contact-Printing of Zinc Oxide Nanowires for Chemical Sensing Applications (2018)
Presentation / Conference Contribution
Nunez, C. G., Manjakkal, L., Liu, F., & Dahiya, R. (2018, October). Contact-Printing of Zinc Oxide Nanowires for Chemical Sensing Applications. Presented at 2018 IEEE Sensors, New Delhi

This paper presents a new method for printing zinc oxide (ZnO) nanowires (NWs) and their analysis for chemical sensing applications. High-crystal quality ZnO NWs are synthesized by chemical vapour transport (CVT) technique and directly transferred an... Read More about Contact-Printing of Zinc Oxide Nanowires for Chemical Sensing Applications.

Flexible Printed Reference Electrodes for Electrochemical Applications (2018)
Journal Article
Manjakkal, L., Shakthivel, D., & Dahiya, R. (2018). Flexible Printed Reference Electrodes for Electrochemical Applications. Advanced Materials Technologies, 3(12), Article 1800252. https://doi.org/10.1002/admt.201800252

This work presents screen-printed thick film reference electrodes (REs) on a polyethylene terephthalate substrate. The ion-conducting channel of presented screen-printed thick film Ag|AgCl|KCl electrodes are made from a composite of glass–KCl powder.... Read More about Flexible Printed Reference Electrodes for Electrochemical Applications.

Flexible self-charging supercapacitor based on graphene-Ag-3D graphene foam electrodes (2018)
Journal Article
Manjakkal, L., Núñez, C. G., Dang, W., & Dahiya, R. (2018). Flexible self-charging supercapacitor based on graphene-Ag-3D graphene foam electrodes. Nano Energy, 51, 604-612. https://doi.org/10.1016/j.nanoen.2018.06.072

A flexible three-dimensional porous graphene foam-based supercapacitor (GFSC) is presented here for energy storage applications. With a novel layered structure of highly conductive electrodes (graphene-Ag conductive epoxy–graphene foam), forming an e... Read More about Flexible self-charging supercapacitor based on graphene-Ag-3D graphene foam electrodes.

Screen Printed Thick Film Reference Electrodes for Electrochemical Sensing (2018)
Journal Article
Manjakkal, L., Vilouras, A., & Dahiya, R. (2018). Screen Printed Thick Film Reference Electrodes for Electrochemical Sensing. IEEE Sensors Journal, 18(19), 7779-7785. https://doi.org/10.1109/jsen.2018.2840349

This paper presents printed thick film Ag|AgCl|KCl reference electrodes (RE) for electrochemical sensors. The screenprinted REs with 10-μm thick glass-KCl salt matrix layer exhibit a stable potential of 5 mV. Cyclic voltammetric analysis shows that t... Read More about Screen Printed Thick Film Reference Electrodes for Electrochemical Sensing.

Printed flexible electrochemical pH sensors based on CuO nanorods (2018)
Journal Article
Manjakkal, L., Sakthivel, B., Gopalakrishnan, N., & Dahiya, R. (2018). Printed flexible electrochemical pH sensors based on CuO nanorods. Sensors and Actuators B: Chemical, 263, 50-58. https://doi.org/10.1016/j.snb.2018.02.092

Nanostructured metal oxides have attracted significant interest in a range of areas in electrochemical applications such as sensors, supercapacitors, and battery electrodes etc. Printing of these materials on flexible substrates will open new applica... Read More about Printed flexible electrochemical pH sensors based on CuO nanorods.

Stretchable wireless system for sweat pH monitoring (2018)
Journal Article
Dang, W., Manjakkal, L., Navaraj, W. T., Lorenzelli, L., Vinciguerra, V., & Dahiya, R. (2018). Stretchable wireless system for sweat pH monitoring. Biosensors and Bioelectronics, 107, 192-202. https://doi.org/10.1016/j.bios.2018.02.025

Sensor-laden wearable systems that are capable of providing continuous measurement of key physiological parameters coupled with data storage, drug delivery and feedback therapy have attracted huge interest. Here we report a stretchable wireless syste... Read More about Stretchable wireless system for sweat pH monitoring.

Electrochemical sensors with screen printed Ag|AgCl|KCl reference electrodes (2017)
Presentation / Conference Contribution
Manjakkal, L., Pascual, C. L., & Dahiya, R. (2017, October). Electrochemical sensors with screen printed Ag|AgCl|KCl reference electrodes. Presented at 2017 IEEE SENSORS, Glasgow

This paper presents the printed thick film Ag|AgCl|KCl reference electrodes for electrochemical or biosensors application and theirelectrochemical and analytical performance. The reference electrode exhibits a stable potential against standard glass... Read More about Electrochemical sensors with screen printed Ag|AgCl|KCl reference electrodes.

Stretchable pH sensing patch in a hybrid package (2017)
Presentation / Conference Contribution
Dang, W., Manjakkal, L., Lorenzelli, L., Vinciguerra, V., & Dahiya, R. (2017, October). Stretchable pH sensing patch in a hybrid package. Presented at 2017 IEEE SENSORS, Glasgow

This work presents a novel stretchable pH sensing patch to detect the pH in body fluid which is one of the most important parameters in human health monitoring. The sensing patch is a hybrid package comprising of polyimide/gold-based stretchable inte... Read More about Stretchable pH sensing patch in a hybrid package.

High Performance CuO Nanorectangles-Based Room Temperature Flexible NH3 Sensor (2017)
Journal Article
Sakthivel, B., Manjakkal, L., & Nammalvar, G. (2017). High Performance CuO Nanorectangles-Based Room Temperature Flexible NH3 Sensor. IEEE Sensors Journal, 17(20), 6529-6536. https://doi.org/10.1109/jsen.2017.2749334

Here, we report the fabrication of a flexible room temperature ammonia gas sensor using surfactant-free hydrothermally synthesized copper oxide (CuO) nanorectangles. The structural analysis revealed that the CuO nanorectangles possessed monoclinic st... Read More about High Performance CuO Nanorectangles-Based Room Temperature Flexible NH3 Sensor.

Multi-sensor system for remote environmental (air and water) quality monitoring (2017)
Presentation / Conference Contribution
Simic, M., Stojanovic, G. M., Manjakkal, L., & Zaraska, K. (2016, November). Multi-sensor system for remote environmental (air and water) quality monitoring. Presented at 2016 24th Telecommunications Forum (TELFOR), Belgrade, Serbia

In this paper realization of the low-power, portable, low-cost multi-sensor system for air and water quality monitoring is described. Developed system is battery-powered with solar panel-based charger unit, and it is intended for use in remote enviro... Read More about Multi-sensor system for remote environmental (air and water) quality monitoring.

Electrical and optical properties of aluminium doped zinc oxide transparent conducting oxide films prepared by dip coating technique (2017)
Journal Article
Manjakkal, L., Packia Selvam, I., Potty, S., & Shinde, R. (2017). Electrical and optical properties of aluminium doped zinc oxide transparent conducting oxide films prepared by dip coating technique. Microelectronics International, 34(1), 1-8. https://doi.org/10.1108/mi-06-2015-0058

Purpose
Aluminium-doped zinc oxide thin films exhibit interesting optoelectronic properties, which make them suitable for fabrication of photovoltaic cell, flat panel display electrode, etc. It has been shown that aluminium dopant concentration and... Read More about Electrical and optical properties of aluminium doped zinc oxide transparent conducting oxide films prepared by dip coating technique.

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