日本語
The University of Electro-Communications 
Graduate School of Informatics and Engineering, School of Informatics and Engineering 
"Department of Engineering Science, Cluster III (Fundamental Science and Engineering)" 

顔写真 Associate Professor 
Varun VOHRA 

Year of birth:1984  
Tel.042-443-5359  
 
Personal website  
Personal website  

Academic degrees
DEUG equivalent in Materials Science Possibility to pass the exam for prestigious engineering schools in France  Chaptal (Classe Préparatoire aux Grandes Ecoles)  2003/06/27 
Engineering Diploma in Materials Science (Polymer speciality)  European School of Chemistry, Polymers and Materials  2006/09/15 
Master's Degree in Materials Science  Louis Pasteur University  2006/09/22 
PhD in Materials Science  Milano-Bicocca University  2009/12/17 

Current research areas
Device related chemistry 
Composite materials/Surface and interface engineering 
Structural/Functional materials 
Material processing/Microstructural control engineering 

Current research subjects
Multi-level self-assembled systems  2006/11/01-2009/12/17  Zeolite L based organic/inorganic hybrid system to enhance the PL properties of organic dye molecules. 
electro-spinning  2006/11/01-Present  Process to produce various types of functional polymeric nanofibers. white-light emitting nanofibers, electro luminescent nanofibers. 
Polymer-Polymer self-assembly  2006/11/01-Present  Breath Figures Array (BFA) Electrospun self-assembled nanofibers Formation of nanostructures through polymer-polymer self-assembly (phase separation) 
organic light emitting devices  2007/09/01-Present  Development of new and innovative types of light-emitting devices based on conjugated polymer materials. Integration of conjugated polymer nanofibers into device architecture. 
Organic Solar Cells  2010/05/15-Present  Formation of donor-acceptor concentration gradients in active layers. New materials for OPV New Device architectures Molecular orientation and morphology of the active layer 

Published books
Book  Interface Engineering: A Key Aspect for the Potential Commercialization of Printable Organic Photovoltaic Cells  Varun VOHRA, Nur Tahirah Razali, Hideyuki Murata  Wiley-Scrivener  2017/05 
Book  Systematic study of organic solar cells cross-section by EDS to correlate donor-acceptor vertical concentration gradients and device performances  Varun VOHRA Nur Tahirah Razali Hideyuki Murata  One Central Press  2017/01  978-1-910086-19-3 
Book  Chemical Science of π-Electron Systems  Varun Vohra, Koichi Higashimine, Keisuke Ohdaira, Shogo Tsuzaki, Hideyuki Murata  Springer  2015  978-4-431-55356-4 
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Published papers
Paper  Yes  Colorless Windows That Transform Sunlight Into Electricity  Varun Vohra, Takashi Sano  Frontiers for Young Minds  9, 552439-  2021/08/06  10.3389/frym.2021.552439 
Paper  Yes  Impact of the Electron Acceptor Nature on the Durability and Nanomorphological Stability of Bulk Heterojunction Active Layers for Organic Solar Cells  Varun Vohra, Yumi Matsunaga, Tomoaki Takada, Ayumu Kiyokawa, Luisa Barba, William Porzio  Small  2004168-  2020/12/16 
Paper  Yes  Ultrafast spectroscopy on water-processable PCBM: rod–coil block copolymer nanoparticles  Lucia Ganzer, Stefania Zappia, Mattia Russo,Anna Maria Ferretti, Varun Vohra, Marianna Diterlizzi, Maria Rosa Antognazza, Silvia Destri, Tersilla Virgili  Physical Chemistry Chemical Physics  10.1039/D0CP05478J  2020/11/11  10.1039/D0CP05478J 
Paper  Yes  Controlling the concentration gradient in sequentially deposited bilayer organic solar cells via rubbing and annealing  Mohd Zaidan Abdul Aziz, Koichi Higashimine, Nobutaka Shioya, Takafumi Shimoaka, Takeshi Hasegawa, Heisuke Sakai, Varun Vohra, Hideyuki Murata  RSC Advances  10/ 61, 37529-37237  2020/10/12 
Paper  Yes  Metal oxides and noble metals application in organic solar cells  Popoti J.Maake, Amogelang S.Bolokang, Christopher J.Arendse, VarunVohra, Emmanuel I.Iwuoha, David E.Motaung  Solar Energy  207, 347-366  2020/09/01 
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Research presentations
Oral presentation for an academic conference  Impact of acceptor unit copolymerization on the degradation of thiophene-based conjugated polymer donors for organic photovoltaic applications coatings for photovoltaic applications  JSAP Autumn Meeting 2021  22p-P07-7  Yes  Hiroki Saito, Newayemedhin Aberra Tegegne, Wendimagegn Mammo, Varun Vohra  2021/09/22 
Oral presentation for an academic conference  n型共役ポリマー半導体の配向性フローティングフィルムの作製  第82回応用物理学会秋季学術講演会  22p-P04-1  Yes  杉田 有哉, Pandey Manish, Syafutra Heriyanto, Cho Yongyoon, Vohra Varun, 辨天 宏明, 中村 雅一  2021/09/22 
Oral presentation for an academic conference  Moth eye structures with tunable dimensions fabricated from self-assembled templates as light manipulation coatings for photovoltaic applications  JSAP Autumn Meeting 2021  21a-P01-3  Yes  Takaaki Sato, Varun Vohra, Hideyuki Murata, Savanna Lloyd  2021/09/21 
Oral presentation for an academic conference  低コスト・低環境影響のプッシュコート法による有機薄膜太陽電池作製  第82回応用物理学会秋季学術講演会  12p-N322-7  Yes  清川 歩夢, 稲葉 柊生, 松永 優実, Vohra Varun  2021/09/12 
Oral presentation for an academic conference  低コスト・低環境影響のプッシュコート法による有機薄膜太陽電池作製  第82回応用物理学会秋季学術講演会  12p-N322-7  Yes  清川 歩夢, 稲葉 柊生, 松永 優実, Vohra Varun  2021/09/12 
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Awards
Best Presentation Award at the 9th Global Conference on Materials Science and Engineering (CMSE 2020)  2020/12/10 
3rd G'L'owing Polymer Symposium in KANTO Presentation Award  Green & Sustainable Fabrication of Conjugated Polymer-based Solar Cells  2020/11/28 
THE 2ND ASEAN - UEC WORKSHOP ON ENERGY AND AI Young Researcher Encouragement Award  Efficient ultra low-cost solar cells fabricated with green & sustainable push-coated organic active layers  2020/11/21 
UEC学生表彰候補者  2019 
エヌエフ基金 研究開発奨励賞 優秀賞  低コスト光発電窓のグリーン&サステナブル作製を実現した研究  2019/11/22 
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