impedance – TechConnect Briefs

A.C. Conductivity and Electrical Modulus Studies of Li1.3Al0.3Ti1.7(PO4)3 Electrolyte Thin Films Grown by RF Magnetron Sputtering

Prasad K.H., Arumugam R., Srinadhu E.S., Satyanarayana N., Pondicherry University, IN

During the past few decades, all solid state thin film lithium-ion batteries have drawn more attention due to their many possible applications, such as smart cards, CMOS, FE-RAM, micro-electric devices, liquid crystal displays (LCDs), etc., [...]

Structural and Electrical Conductivity Studies of Spinel Li4Ti5O12 Anode Thin Films Grown by RF Magnetron Sputtering

Prasad K.H., Arumugam R., Srinadhu E.S., Satyanarayana N., Pondicherry University, IN

All-solid-state rechargeable batteries with high energy density are the most promising energy storage devices for electric vehicles and other portable electronic devices. Among the available energy sources, lithium-ion (Li-ion) batteries are more suitable, since these [...]

A.C. conductivity, Dielectric and Electric Modulus Studies of Li4Ti5O12 Anode films grown by RF Magnetron Sputtering

Hari Prasad K., Muralidharan P., Srinadhu E.S., Satyanarayana N., Pondicherry University, IN

There is a great demand for developing miniaturized energy sources for the medical implantable micro devices, portable electronic devices, self powered direct and remote sensing portable devices used in naval, defense, space applications, etc. Among [...]

A.C. conductivity, Dielectric and Electric Modulus Studies of LiMn2O4 cathode films grown by RF magnetron sputtering

Hari Prasad K., Muralidharan P., Srinadhu E.S., Satyanarayana N., Pondicherry University, IN

Lithium ion batteries (LIB) with high energy density, power density and long charge-discharge life, are considered to be one of the most promising energy storage systems for portable electronic devices as well as electric vehicles [...]

The use of interdigitated microelectrode structures for the detection of exposure to simulated airborne environmental dust

Townsend R.L., Rocks S.A., Dorey R.A., Tearle S., University of Surrey, UK

Particulate matter is ubiquitous in the environment however industrial processes increase the amount released in the air. Here we show the initial development of a novel sensor capable of detecting airborne particulate matter in real [...]

Electrical conductivity studies of nanocrystalline Dy3+ doped CaMoO4 synthesized by sol-gel process

Jena P., Nallamuthu N., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN

Oxygen ion conducting solid electrolytes have many device applications such as sensors, solid oxide fuel cells, oxygen pumps, electrochemical reactors and steam electrolysis cells. Among these, solid oxide fuel cells (SOFCs) have attracted great attention [...]

Electrical conductivity studies of nanocrystalline Dy3+ doped CaMoO4 synthesized by sol-gel process

Jena P., Nallamuthu N., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN

Oxygen ion conducting solid electrolytes have many device applications such as sensors, solid oxide fuel cells, oxygen pumps, electrochemical reactors and steam electrolysis cells. Among these, solid oxide fuel cells (SOFCs) have attracted great attention [...]

Effect of SiO2 on the electrical and magnetical properties of nanocrystalline NiFe2O4

Prakash I., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN

NiFe2O4 is an important magnetic material because of its applications in various fields Ferrites are also used in gas, humidity sensor and anode materials in lithium ion batteries. The problem existing in anode material is [...]

Electrical conductivity studies of nanocrystalline Dy3+ doped SrMoO4 synthesised by sol-gel process

Jena P., Nallamuthu N., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN

Oxygen ion conducting solid electrolytes have many device applications such as sensors, solid oxide fuel cells, oxygen pumps, electrochemical reactors and steam electrolysis cells. Among these, solid oxide fuel cells (SOFCs) have attracted great attention [...]

Surface modification of nanocrystalline LiCoO2 particles with rare earth oxides using polymeric resin process

Nageswara Raoa B., Venkateswarlub M., Satyanarayana N., Pondicherry University, IN

Among the available positive electrode materials, layer structured LiCoO2 is the most preferred one in commercial Li-ion batteries. However, LiCoO2 exhibits a capacity fading at high rates due to its structural instability and reactivity with [...]