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TAZDIK PATWARY PLATEAU

Address:

House-17, Road-1, Block-E, Ranavola, Uttara, Dhaka | +8801677971533 | ptazdik@gmail.com

Education

Bangladesh University of Engineering and Technology, BUET

BSc in Materials and Metallurgical Engineering 2017

Undergrad thesis: A heuristic proposition of efficient copper-electrodeposited p-type thin film for CZTS solar cell

CGPA 3.05 out of 4.00

Rajuk Uttara Model College

Higher Secondary School Certificate 2011

GPA 5.00 out of 5.00

Dhanmondi Govt. Boys’ High School

Secondary School Certificate 2009

GPA 5.00 out of 5.00

Research Experience

A HEURISTIC PROPOSITION OF EFFICIENT COPPER-ELECTRODEPOSITED P-TYPE THIN FILM FOR CZTS SOLAR CELL Supervisor: Dr. Md. Moniruzzaman (Professor, PhD, Head of the department, Department of Materials & Metallurgical Engineering)

1. Fabrication of p-type thin film using potensiostatic method electro deposition

2. Deposition done using 4 variable parameters and other constant parameters

3. Calculated coating thickness and found relationship among the parameters and thickness values

4. Experimented with some characterization test ( SEM, XRD, EDS, UV-vis spectrometry)

5. Characteristic behavior of the samples observed and made discussion

6. From experimental data and sufficient logic cuprous oxide thin film found which is a part of CZTS

EVALUATION OF TENSILE STRENGTH OF ENVIRONMENT FRIENDLY JUTE FIBER REINFORCED POLYPROPYLENE Supervisor: Dr. Mamun Al Rashed, (Assistant Professor, PhD, Department of Materials & Metallurgical Engineering)

1. Environment friendly biodegradable jute fiber reinforced polymer composite prepared

2. Material: Jute fiber (treated with 20% sodium hydroxide and untreated) and polypropylene pellets

3. Considering various length and various weight of natural jute fiber

4. Conditioned at 110◦C for 24 hours and properly blended to make desired lengths and weights

5. Using a mold composites made at 180◦C and 50KN load

6. Observed data after tensile test and plotted graphs of strength vs fiber length and fiber weight using treated and untreated jute fiber reinforced polypropylene

A CHEAP WAY TO DEVELOP ABSORBER LAYER OF SOLAR CELL USING CUO THIN FILM Supervisor: Dr. Md. Moniruzzaman (Professor, PhD, Head of the department, Department of Materials & Metallurgical Engineering)

1. Considering social perspective a cheap method of fabrication sorted

2. Comparing different metal with the conventional polycrystalline silicon as a p-type absorbed layer

3. Comparing different electro chemical methods and chose electro deposition as it is favorable for the copper metal

4. Calculating minimum thickness and optimum hardness value for the deposition and according to the data prepare samples for the experimental tests

5. Confirming the hardness value and thickness through laboratory work

6. Assure the desired properties by SEM, XRD, Uv vis- spectrometry tests.

Academic and Work Experience

Poster Presentation

Author 2014

Catastrophic Failure Occurred in Three Incidents and Explanations

Undergrad Thesis

Researcher & Author 2016

A heuristic proposition of efficient copper-electrodeposited p-type thin film for CZTS solar cell

Thesis Work

Researcher & Author 2016-2017

A Cheap Way to Develop Absorber Layer of Solar Cell Using CuO Thin Film

Additional Thesis

Researcher & Author 2015

Evaluation of Tensile Strength of Environment Friendly Jute Fiber Reinforced Polypropylene Composite

Internship

Rolling Plant, Abul Khair Steel

Internship

Melting Plant, Abul Khair Steel

Internship

Plain Sheet Unit, Abul Khair Steel

Publications & Papers

“A heuristic proposition of efficient copper-electrodeposited p-type thin film for CZTS solar cell”

Author & Presenter

Published in International Conference on Electrical, Computer and Communication Engineering, CUET, Coxbazar, Bangladesh

([1] ) 2017

“A Cheap Way to Develop Absorber Layer of Solar Cell Using CuO Thin Film”

Author

Accepted in 4th International Conference on Advances in Electrical Engineering (ICAEE)[2],

Ppaer ID: 7135

IUB Campus, Dhaka, Bangladesh. 2017

“Evaluation of Tensile Strength of Environment Friendly Jute Fiber Reinforced Polypropylene Composite”

Author

Reviewed in Journal of Composite Materials, SciencePG.

“A Comparison Between Potentiostat Electro-deposited Copper Oxides Thin film for Photovoltaic Use”

Author

Journal manuscript submitted on Journal of Engineering Materials and Manufacture. [Submitted]

Languages

English- Second Language

IELTS- Overall 6.5

Writing- 7.5, Reading-6.5, Listening-6, Speaking- 6

English Language Proficiency Grade B2

Bangla, Native Language

GRE Test Score

Quantative= 165

Verbal= 141

Overall= 306

Awards & Participents

Participant on seminar of Leadership Skills & Social awareness in Engineering and Business Sector

Author & Participant on Conference of Electrical, Computer and Communication Engineering, CUET.

Participant on seminar about Astrophysics and Relativity Theory Explanation

Participant in Prothom Alo Math Olympiad, National level, position 23.

Award of GPA 5.00 in SSC on Aktel-Nondan Society

Award of 3rd position on Physics Olympiad in Rajuk College Science Fair

Award of 2nd position on Math Olympiad in Rajuk College Science fair

Participants in a Project “efficient lead acetate batteries- environment friendly”, School Level, Dhanmondi Regional Science Fair

Teaching Experiences

Shikkha(NGO)

Teacher- Mathematics & English 2011-now

Taught Street children and poor people

Lecturer- Physics (part-time) 2012-13

CSD College, Uttara, Dhaka

Lecturer-Physics (part-time) 2014

Sunrise College, Dhaka

Research Related Interest and Purpose of Higher Study

I have always dreamt of being a researcher and also to add doctorate with my name. From my childhood, I heard that to be a researcher, I have to study a lot and do something great using that knowledge. Now I have a dream of writing a lot of publications like journal papers, conference papers according to my research work. I want to get Ph.D. degree to gather knowledge and practical experiences and build a career as a researcher. In future, I want to continue my research in my homeland and also want to become a teacher for spreading my knowledge among the students.

I am a graduate of Materials and Metallurgical Engineering from Bangladesh University of Engineering and Technology, BUET- the highest ranked university in Bangladesh. I was not a student who only memorizes the question-answers. Moreover, I always tried to understand the concept and meaning of the engineering topics. However, I could not get good results. In my early semesters, I tried a lot but failed to have a good CGPA. Consequently, I chose to do some research works. At first, I worked on tensile properties of jute fiber-polypropylene composites. Jute fiber was both treated and untreated. Treated jute fiber was treated with 20% NaOH. Tensile strength was measured in various weights and lengths of fiber. In foundry lab, the mixture was placed on a mold of 180◦C and load was 50 KN. Metallographic views were observed and tensile properties among different fiber lengths and weights were plotted in graphs. On this topic, a paper is submitted in IEEE R10-HTC 2017, Dhaka, Bangladesh. [[3]]

In my graduating year thesis work, I wanted to work on energy related work. In addition, my thesis supervisor Dr. Moniruzzaman suggested me to work on renewable energy. Likewise, I chose to make a p-type thin film of CZTS cell for solar uses. Different variables were chosen as bath composition, temperature, time, pH. Cuprous oxide (Cu2O) was deposited on the substrate. The characterization tests were done such as SEM (scanning electron microscopy), XRD (X-ray diffraction), EDS, UV-Vis spectrometry. In addition, coating thickness was also measured for each sample. From the EDS report, total Cu is 80-90% and oxygen is 10-20% which assures the Cu2O deposition. This cuprous oxide is the part of p-type CZTS thin film. From the coating thickness data reports, there were some relations found among coating thickness, potential differences, temperatures, pH values. Like this, I had planned to make another coating of zinc (Zn) on it, then tin (Sn) deposition on that. To form a deposition of sulfur (S), annealing would be done in H2S atmosphere. A conference paper about this work was published in “ECCE-2017” IEEE conference ([4]).

Due to the busy schedule in laboratories and characterization testing machines like SEM, TEM; I could not go for further research on CZTS. But I hope to finish this someday. In this way, I had finished my compulsory thesis work for my undergrad level, six months before my graduation. In these six months, I developed another p-type thin film for solar application which is cheaper than the conventional Si solar cells. As my country is a developing country, the government cannot give electricity to the village people and because of a high cost of solar cell they cannot buy solar panels. As a result, 80 % of my countrymen remain without electricity. So, I tried to make something cheaper. According to the costing of the process, I came to know electro deposition setup is cheaper. Some research papers about the fabrication of solar cells help me to know that costing in developing p-type part of a solar cell is the major expenditure. From the market research, it is found that Cu metal is cheaper than conventional polycrystalline material. So, I chose to deposit cupric oxide CuO thin layer on the substrate. A limited thickness range of cupric oxide was maintained in all samples. Because increased thickness causes an increment in cost. Compositions of copper sulfate solution, temperature, time, voltage differences were altered. Another important property is hardness because thin film must have a sufficient hardness for preparation of solar cell. After preparations of all samples, I went to Dhaka University for SEM, XRD, UV-Vis spectrometry test. These characterization reports show the presence of cupric oxide at a certain thickness and hardness value (HRC scale) and also the measured band gap was -0.8eV. Another conference paper on this topic is now submitted on ICAEE-2017- IEEE conference. [[5]]

I have an intense attraction to work in the field of electro chemical thin film deposition, development of the solar cell, magnetic material, Li batteries, and nanomaterial. I love work in the laboratories; an invention of new thing aspires me each and every time.

Now, I am too much interested about to fulfill my dream, by working on any project in a recognized University. This opportunity gives not only me the chance to work with my dream topic, but also the great laboratories with modern equipment.

Consequentially, I wish to get admitted into the Ph.D. program related to materials science engineering and also firmly believe that any financial assistantship from your university will help me to be a successful researcher.