Recent Researches:

Development of rare-earth-free BCNO phosphor


We have succeeded in developing of BCNO phosphor using a facile process, without any additional rare earth materials. Emission color of BCNO phosphor can be easily controlled from blue to near red by controlling the ratio of atoms in BCNO. The synthesized BCNO can be applied as a phosphor component in white light emitting diode (LED) devices. This research is conducted in a collaboration with Prof. Kikuo Okuyama's Group at Hiroshima University. 

 

Recent publication:

1.I. D. Faryuni, B. W. Nuryadin, F. Iskandar, M. Abdullah, Khairurrijal, T. Ogi and K. Okuyama: Synthesis and photoluminescence of BCNO/SiO2 nanocomposite phosphor materials, J. Luminescence  148, 165-168 (2014): 10.1016/j.jlumin.2013.12.03

2. B. W. Nuryadin, E. C. S. Mahen, F. Iskandar, M. Abdullah, Khairurrijal: Microwave-Assited Synthesis of Red emitting BCNO Phosphors and Its Characterization, Adv. Mat Res, 896, 464-467 (2014).

3. B.W. Nuryadin, T.P. Pratiwi, F. Iskandar, M. Abdullah,Khairurrijal, T. Ogi, K. Okuyama, Photoluminescence Optimization of BCNO Phosphors Synthesized Using Citric Acid as a Carbon Source, Adv. Powder Technol, 25 (3), 891–895 (2014).

4. H. Iwasaki, T. Ogi, F. Iskandar, K. Aishima, K. Okuyama, Microwave synthesis of homogeneous and highly luminescent BCNO nanoparticles for the light emitting polymer materials, Journal of Luminescence, 166, 148–155 (2015)



 




 

Development of Nanocatalyst Material for Enhanced Oil Recovery


We have succeeded in fabrication of FexOy and NiO nanocrystalline powder using a wet chemical route. The prepared powder were applied for catalyst in Enhanced Oil Recovery (EOR).


Recent publication:

1. F. Iskandar, A. Asbahri, E. Dwinanto, M. Abdullah and Khairurrijal, Synthesis of Fe3O4 Nanoparticles Using Co-Precipitation Method and Its Development into Nanofluids as Catalyst in Aquathermolysis Reaction, Advanced Materials Research, Volume 1112, pp 205-208 (2015)
2. F. Iskandar, E. Dwinanto, M. Abdullah, Khairurrijal and O. Muraza, Viscosity Reduction of Heavy Oil Using Nanocatalyst in Aquathermolysis Reaction, KONA Powder and Particle Journal, Doi: 10.14356/kona.2016005 (2015)

 


 

Morphology Control and Designing of Particles


Several structures and morphologies, such as aggregates, hollow, porous, doughnut, hairy, raspberry, and encapsulated particles have been successfully designed via aerosol spray method. (The figure is designed by Dr. Lee Sin Young)


Recent publication:

1. Lee, S. Y., H. Chang, T. Ogi, F. Iskandar and K. Okuyama: Measuring the Effective Density, Porosity, and Refractive Index of Carbonaceous Particles by Tandem Aerosol Technique, Carbon, 49, 2163-2172 (2011)

2. Lee, S.-Y., L. Gradon, S. Janeczko, F. Iskandar and K. Okuyama: Formation of Highly Ordered Nanostructures by Drying Micrometer Colloidal Droplets, ACS Nano, 4(8), 4717-4724 (2010).

3. Nandiyanto, A.B.D., O. Arutanti, A. Suhendi, T. Ogi, F. Iskandar, T.O. Kim, K. Okuyama: Synthesis of Spherical Macroporous WO3 Particles and Their High Photocatalytic Performance, Chem. Eng. Sci, 101, 523-532 (2013)

 

Perpendicular FePt Nanoparticles for High Density Recording


The phenomenon of atomic motion between the nanoparticle and its substrate was examined in constructing perpendicularly aligned FePt nanoparticle structures. The measurements for the in-plane and out-of-plane direction exhibited perpendicularly oriented magnetization and a L10 ordered phase with a perpendicular easy axis orientation. These results might open a new path toward ultrahigh density storage media from chemically synthesized FePt nanoparticles.This research has been conducted in a collaboration with Prof. Kikuo Okuyama's Group at Hiroshima University and Toshiba Corp., Japan.


Recent publication:

1.  I. Matsui,T. Ogi, F. Iskandar and Kikuo Okuyama, Perpendicular easy axis alignment of FePt nanoparticles on a platinum-(001) buffer layer for high-density magnetic recording, J. App. Phys, 110, 083906 (2011)

 



The Development of Cathode Material  for Lithium-ion Battery


We have been currently developing research about cathode material, especially for LiFePO4 and Li2FeSiO4 to obtain the high performance of lithium-ion battery. The research has been successfully explored by hydrothermal and solvothermal synthesis method.


Recent publication:

1. A. S. Nisa, F. Iskandar, M. Abdullah, dan Khairurrijal, “Sintesis Material Lithium Besi Fosfat LiFePO4 dengan Metode Solvotermal pada Konsentrasi Tinggi”, Prosiding Simposium Nasional Inovasi dan Pembelajaran Sains (SNIPS 2013), Institut Teknologi Bandung, 4 Juli 2013.

2. CH.A.Andre Mailoa dan F. Iskandar, “Efek Penambahan SiO2 pada Pembuatan Partikel LiFePO4 Menggunakan Metode Hidrotermal”, Prosiding Seminar Nasional Material 2014, Institut Teknologi Bandung, 24 Mei 2014.



 

Development pf of perovskite based solar cell 

We have synthesized perovskite materials which will be used as a light harvester in photovoltaic cells which is CH3NH3PbI(3-x)Clx. We have developed a new technique to fabricate a lead as extracted from solder wire. We are also developing a CuI thin film as hole transport material that prepared with low-cost, safety and easy fabrication, i.e. by using spraying techniques.  


Recent publication:
1. P. Noorlaily, M. Ulfa, S.Z. Bisri and F. Iskandar, Absorbance Studies of Perovskite CH3NH3PbI(3-x)Clx as Light Harvester in Solar Cell, Advanced Materials Research, Volume 1112, pp 282-285 (2015)
2. G.H. Rahmi, P. Pratiwi, B.W. Nuryadin, A.H. Aimon, T. Winata, F. Iskandar, Insitu Preparation of Cooper Iodide (CuI) Thin Film by Spraying Techniques for Hole Transport Material (HTM), Asian Physics Symposium (APS) 2015. Will be published in AIP Proceeding (In Press)
3. P. Pratiwi, G.H. Rahmi, B.W. Nuryadin, A.H. Aimon, M. Abdullah, F. Iskandar, Preliminary Study on Synthesis of Organolead Halide with Lead Derived from Solder Wire,  Asian Physics Symposium (APS) 2015.
Will be published in AIP Proceeding (In Press)