Nano Technology and Graphene Research Centre
PUSAT RISET PENGEMBANGAN INSTITUSI NANO TEKNOLOGI DAN GRAPHENE

Nanotechnology for Energy


Luminescence Materials

 

Product

Luminescent materials such as phosphors are materials that emit light (infrared to ultraviolet) under external energy excitation. The incident energy, in the form of high energy electron, photons, or electric field, can then be re-emitted in the form of electromagnetic radiation.
Applications
·    Light-emitting diodes (LEDs) emit light via electro-luminescence.
·    Phosphors, materials that emit light when irradiated by higher-energy electromagnetic radiation or particle radiation.
·    Phosphor thermometry, measuring temperature using phosphorescence.
·    Thermoluminescence dating
·    Thermoluminescent dosimeter.

Challenges

Phosphors (inorganics luminescent material) have been extensively investigated due to their potential application especially for lighting. Despite various methods applied in preparation of phosphors, the common goals were to obtain intrinsic properties that determine the efficiency of phosphors performance. Generally, these properties could be improved by better crystallization and purifying the materials. Current challenges on phosphors research is to obtain desired phosphors for lighting application: parameters include luminescent features and high quantum efficiency, reduced RE usage for host phosphor, morphology and size, preparation/synthesis methods of new phosphors.

Researchers:
Prof. Dr. Eng. Camellia Panatarani, M.Si.
Prof. Dr. Eng. I Made Joni, M.Sc.
Email:c.panatarani@phys.unpad.ac.id

Coal Bed Methane

Coal Bead Methane (CBM) work flow

Methane is an alternative renewable resources obtained from anaerobic activities of microbes in coal bed methane applied for low grade coal.

Challenges

The challenges is development of microbial consortium from cow and cattle dung for coal-bed methane. The behaviour of the mineral within the coal and type of coal used (lignite, bituminous and subbituminous) may influences the microbe’s survival and methane production.

Researchers:
Prof. Dr. Ellin Harlia.
Assc. Prof. Dr. Ir. Tb Benito Achmad Kurnani, D.Est.
Dr. Eulis Tanti Marlina, MP.
Assc. Prof. Dr. Ir. Ahmad Helman Hamdani, M.Si.
Prof. Dr. Eng. Camellia Panatarani
Prof. Dr. Eng. I Made Joni, M.Sc.
Email: ellin.harlia@unpad.ac.id

Electrochemical: Battery and Fuel Cell/ HHO Generator 

   

 Metal-air Battery

The metal-air cell is one type of water activated cell using metals as anodes and oxygen as cathodes. The advantages of water activated battery can provide the demand for high energy density, long life and low temperature performance. The immediate demand of low cost and environmental friendly alternative energy supply leads to the development of metal-air batteries. After the use, the ‘solid fuel’ anodes and electrolyte could be mechanically replaced and the cathodes could be simply reused. Metal-oxygen pairs have different electrochemical characteristics. Some pairs with their theoretical characteristics such as specific capacity and specific energy density.

Li-O2 pair has the highest specific energy and capacity; unfortunately the difficulties in handling Lithium restricts its use in aqueous electrolyte. Another pair with high capacity and energy density is Al-O2 and Mg-O2 type. Focus on Mg-air battery gained attention simply due to raw material availability and the higher voltage of Magnesium compared to Aluminum.

Researchers:

Prof. Dr. Eng. Camellia Panatarani
Prof. Dr. Eng. I Made Joni, M.Sc.
Dr. Sahrul Hidayat, M.Si.
Email: c.panatarani@phys.unpad.ac.id

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