VISHAL BHARTI, PhD

Scientific researcher with extensive detailed research experience on device design, optical & electrical characterization, equivalent circuit modeling and development of high-performance photovoltaic devices for energy generation, based on polymers, small molecules, and perovskite materials.

Charge carrier study using Current Voltage characteristics and Impedance spectroscopy

Research interest to seeking new challenges in the field of optoelectronic and thermoelectric devices for energy generation and super capacitors for energy storage based on new materials

Assistant Professor

Employee ID: BHDHED00010105

Government Degree (PG) College Bhaderwah

Higher Education Department

Jammu & Kashmir, India

Email Id: bharti.vishal1@gmail.com , vishalopv@gmail.com

Mobile No.: +917051224040

Research ID: O-4817-2017

ORCID ID: http://orcid.org/0000-0001-9626-6839

Skype Id: vishal.bharti59

https://publons.com/researcher/2056276/vishal-bharti/

https://www.mendeley.com/profiles/vishal-bharti/

https://scholar.google.co.in/citations?user=SOpBfqcAAAAJ&hl=en

https://www.linkedin.com/in/dr-vishal-bharti-782235a0/

https://www.researchgate.net/profile/Vishal_Bharti2

Sex: Male | Date of Birth: 10/03/1985 | Nationality: Indian

Academic Degrees:

Doctor of Philosophy (Ph.D.) in Science; (08/2011-03/2017)

AcSIR – Academy of Scientific & Innovative Research,

Advanced Materials and Devices Division,

CSIR- National Physical Laboratory, New Delhi, India-110012

Ph.D. Dissertation

Supervisor (s): Dr. Suresh Chand (Emeritus Scientist) and Dr. Vinay Gupta

CSIR-National Physical Laboratory, New Delhi, India-110012

Dissertation title: “EFFICIENT TERNARY BLEND BULK-HETEROJUNCTION ORGANIC SOLAR CELLS WITH FÖRSTER RESONANCE ENERGY TRANSFER”

http://acsir.res.in/completed-ph-d-theses/

The objective of my dissertation was to enhance the power conversion efficiency of Bulk-Heterojunction (BHJ) organic solar cells (OSCs) by broadening the absorption spectrum in a single junction based OSCs. This was achieved by blending of two different polymers having complementary absorption spectrum. I have used dual donor (PTB7 and PCDTBT) based ternary blend BHJ organic solar cells approach to obtain high performance. This approach benefits both the enhanced spectral absorption range for efficient photon harvesting and simplicity of fabrication conditions that is used in single junction BHJ-OSCs. I have explored the dynamics of excitons in dual donor based ternary blend system by Femto-second transient spectroscopy and found that Förster resonance energy transfer (FRET) is the key mechanism for enhancement in the PCE of the ternary blend system which has great potential for future efficiency improvements.

My PhD work has resulted in publications in reputed Journals (Advanced Materials, and Applied Physics Letters) & International patent entitle “Improved bulk heterojunction solar cells based on modified PTB7-PC60BM”.

Master of Philosophy (M.Phil.) in Electronics; Grade- “O” (01/2009-06/2011)

Department of Physics & Electronics

University of Jammu, Jammu, J&K, India-180006

Master of Science (M.Sc.) in Electronics; (2006-2008)

Percentage- 79.4%, 1st Rank and Gold Medalist

Department of Physics & Electronics

University of Jammu, Jammu, J&K, India-180006

Bachelor of Science (B.Sc.) in Electronics; (2003-2006)

Percentage- 75.8%, Distinction

G.G.M Science College, Jammu

University of Jammu, Jammu, J&K, India-180006

Scientific Research Experience

Post Doctoral Researcher; (2019/01-2021/01)

Project: Fabrication of large area solar cells using Spray and Electro-spray deposition.

Supervisor: Associate Professor Isabel Maria Mercês Ferreira.

Department of Material science;

Faculty of Science and Technology; New University of Lisbon. campus de Caparica, Portugal

Post Doctoral Researcher; (2018/05-2018/08)

Project: DNA origami-enabled Exciton Engineering for Overcoming Shockley-Queisser Limit

Supervisor: Assistant Professor Dr. Seungwoo Lee

SKKU Advanced Institute of Nanotechnology (SAINT);

Sungkyunkwan University (SKKU);

Suwon 16419, Republic of Korea.

Science and Engineering Research Board (SERB)- National Post Doctoral Fellow; (2017/04-2018/04)

Project: Development of Efficient polymer Solar Cells based on low band-gap polymers;

Supervisor: Professor Dr. Viresh Dutta.

Head, Centre for Energy Studies [CES];

Indian Institute of Technology, Delhi;

Hauz Khas New Delhi, India – 110016.

Project Associate; (2016/03-2017/03)

Project: Technologies and Product for Solar Energy Utilization through Networks (TAP-SUN).

Supervisor: Dr. Asit Patra (P.I) and Dr. Vinay Gupta

Advanced Materials and Devices Division,

CSIR-National Physical Laboratory, New Delhi-110012.

Visiting Scholar, (2015/06-2015/09)

Department of Materials Science and Engineering, University of California, Los Angeles (UCLA), California, USA, 90095.

Supervisor: Dr. Yang Yang (Professor) and Dr. Gang Li

Funded By:- Indo-US Science and Technology Forum (IUSSTF) and Department of Science and Technology (DST), Govt. of India.

UGC-Senior Research Fellow (2013-2016)

Availed at CSIR-National Physical Laboratory, New Delhi, India-110012.

Funded By: University Grant commission (UGC), New Delhi, India-110002.

UGC-Junior Research Fellow (2011-2013)

Availed at CSIR-National Physical Laboratory, New Delhi, India-110012.

Funded By: University Grant commission (UGC), New Delhi, India-110002.