ANJU.RS

Ranjana house

Pallikkal (po)

Malappuram (dist)

673653

Kerala, India

Phone: +919*********

Email: ujdnml@r.postjobfree.com

______________________________________________________________________

CAREER OBJECTIVE

Seeking a job position that will enable to conduct advanced research in the frontier areas of science and technology. To work on novel materials and methods and Contribute to making life more humane.

PERSONAL INFORMATION

Date of birth 01-06-1988

Sex Female

Marital Status Single

Nationality Indian

Father’s Name P.Rajamohanan

EDUCATIONAL QUALIFICATION

1.Master of Science, Applied Chemistry, 2010

Department of Chemistry, Calicut University, Kerala.

Results announced: CGPA – 7.7/10 (78%)

2.Bachelor of Science, Chemistry March 2008

St.JOSEPH’S.COLLEGE, IRINJALAKKUDA

Calicut University, Kerala

Marks Obtained: 935/1000 (93.5%)

3.Higher Secondary Education March 2005

C.B.H.S.S, VALLIKKUNNU

Board of Higher Secondary Examination, Kerala

Marks Obtained: 498/600 (83%)

4.Secondary School Leaving Certificate Examination, March 2003

G.M.H.S.S, CALICUT UNIVERSITY CAMPUS

Board of Public Examinations, Kerala

Marks Obtained: 550/600 (91.6%)

RESEARCH EXPERIENCE

M.Sc. Project

“Size Dependent Luminescence Characteristics of Yttria Based Nanophosphors”

Guide: Dr. P.A. JOY

Physical and Material Chemistry Division,

National Chemical Laboratory, Pune-411008, INDIA

Brief description about the project

Large amount of energy are consumed for lighting and during operation of displays. Thus the

targets are the development of economical light sources like white light emitting diodes and

display panels with increased efficiency. Present scenario of white light lamps is that mercury

arc lamp is causing health hazard as the safe disposal of mercury is very difficult and the LED

used are too expensive to become an efficient technology. Fluorescence lamps are although

inexpensive but from power consumption point of view it is not a good technology in modern era

A possible contribution might be delivered by phosphors which allow the conversion of

electrical energy to radiation. All the rare earth ions in their most stable 3+ state emit

characteristic colors of relatively sharp lines. Therefore, combining these radiations it is possible

to get white light. For the solution of these central questions, inorganic solid state materials

doped with rare earth ions are very promising and are therefore in the focus of current project

work.

Nanocrystalline yttria is used as the host lattice and by auto combustion method 1 mol%

Dysprosium doped, Erbium doped ,Thulium doped and Europium doped Yttria were synthesized

separately, using Glycine as fuel. By changing the amount of Glycine, nanophosphors with

different crystalline size are produced. Phase analysis and purity are analyzed using XRD and the

crystalline size is calculated using software PCW. Variation of the luminescent properties with

size is studied using photo luminescent spectroscopy. The f-f transitions are identified using

Diekes’ diagram. From the studies it was clear that the intensity of the luminescence peak

decreases with decrease in crystal size. By combining the emission spectra of Dysprosium

doped(gives green colour), Thulium doped(gives blue colour) and Europium doped (gives red

colour) yttria of almost similar sizes, we could cover the whole visible region and a co-doped

nanophosphors of Dysprosium, Europium and Thulium in a proper ratio will produce white light

with good quality. Future works on this project are going on.

CONFERENCES AND WORKSHOPS ATTENDED

2009:- “National Conference on Advances in Physical and Theoretical Chemistry”

organized by University of Calicut, Kerala.

2008:- “National Workshop on Frontiers in Chemistry for Society” organized jointly by

University of Calicut and National Chemical Laboratory (NCL), India.

2008:- “National Seminar on Phytochemicals for Human welfare” organized by

University of Calicut,Kerala.

COMPUTER KNOWLEDGE

Familiar with Chemistry related software (Chemdraw), Microsoft Office and plotting soft

wares like Origin.

PERSONAL PROFILE

Date of Birth: 01-06-1988

Gender: Female

Marital Status: Single

Nationality: Indian

Languages spoken: English, Malayalam and Hindi

RESEARCH EXPERIENCE

M.Sc. Project

“Size Dependent Luminescence Characteristics of Yttria Based Nanophosphors”

Guide: Dr. P.A. JOY

Physical and Material Chemistry Division,

National Chemical Laboratory, Pune-411008, INDIA

Brief description about the project

Large amount of energy are consumed for lighting and during operation of displays. Thus the targets are the development of economical light sources like white light emitting diodes and display panels with increased efficiency. Present scenario of white light lamps is that mercury arc lamp is causing health hazard as the safe disposal of mercury is very difficult and the LED used are too expensive to become an efficient technology. Fluorescence lamps are although inexpensive but from power consumption point of view it is not a good technology in modern era A possible contribution might be delivered by phosphors which allow the conversion of electrical energy to radiation. All the rare earth ions in their most stable 3+ state emit characteristic colors of relatively sharp lines. Therefore, combining these radiations it is possible to get white light. For the solution of these central questions, inorganic solid state materials doped with rare earth ions are very promising and are therefore in the focus of current project work.

Nanocrystalline yttria is used as the host lattice and by auto combustion method 1 mol% Dysprosium doped, Erbium doped ,Thulium doped and Europium doped Yttria were synthesized separately, using Glycine as fuel. By changing the amount of Glycine, nanophosphors with different crystalline size are produced. Phase analysis and purity are analyzed using XRD and the crystalline size is calculated using software PCW. Variation of the luminescent properties with size is studied using photo luminescent spectroscopy. The f-f transitions are identified using Diekes’ diagram. From the studies it was clear that the intensity of the luminescence peak decreases with decrease in crystal size. By combining the emission spectra of Dysprosium doped(gives green colour), Thulium doped(gives blue colour) and Europium doped (gives red colour) yttria of almost similar sizes, we could cover the whole visible region and a co-doped nanophosphors of Dysprosium, Europium and Thulium in a proper ratio will produce white light with good quality. Future works on this project are going on.

CONFERENCES ATTENDED

2009:- “National Conference on Advances in Physical and Theoretical Chemistry”

Organized by University of Calicut, Kerala.

2008:- “National Workshop on Frontiers in Chemistry for Society” organized jointly by

University of Calicut and National Chemical Laboratory (NCL), India.

2008:- “National Seminar on Phytochemicals for Human welfare” organized by

University of Calicut, Kerala.

2010:- “Seminar on the present research areas in physical chemistry” organized by National Chemical Laboratory (NCL Pune)

AREAS OF INTEREST

1. Bioinorganic chemistry

2. Nanotechnology and Material Science

3. Organic Synthesis

4. Photo Chemistry

FAMILIAR INSTRUMENTS

1. XRD

2. UV-VIS Spectrophotometer

3. IR Spectroscopy

4. Chromatographic Techniques

5. NMR spectrometer

6. Thermogravimetric analysis

COMPUTING SKILLS

1. Applications: Microsoft Office, Origin, Chemdraw, Powder Cell Window

3. Operating Systems: Windows XP

LANGUAGES

1. English

2. Malayalam (Mother tongue)

3. Hindi

4. Tamil (Basic knowledge)

ACHIEVEMENTS AND SCHOLORSHIPS

1. Rashtrapathi Guide award from President of India

2. Award for topper in our village for secondary examination

3. First prize in Hindi and English drama in D-zone and Inter zone festivals

4. Prizes in dancing competition in intercollegiate level

5. Indira Gandhi scholarship for post graduate students

6. Aspire scholarship for post graduate students.

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