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） Varun VOHRA

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）

Assistant Professor
Varun VOHRA

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

■ 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 Nanostructured light-emitting polymer thin films and devices fabricated by the environment-friendly push-coating technique Varun Vohra Francesco Galeotti Umberto Giovanella Wojciech Mroz Mariacecilia Pasini Chiara Botta ACS Applied Materials & Interfaces 10, 11794-11800 2018/03/16
Paper Yes Strongly Iridescent Hybrid Photonic Sensors Based on Self-Assembled Nanoparticles for Hazardous Solvent Detection Ayaka Sato Yuya Ikeda Koichi Yamaguchi Varun Vohra Nanomaterials 8, 169- 2018/03/16
Paper Yes Water-Processable Amphiphilic Low Band Gap Block Copolymer:Fullerene Blend Nanoparticles as Alternative Sustainable Approach for Organic Solar Cells S. Zappia, G. Scavia, A. M. Ferretti, U. Giovanella, V. Vohra, S. Destri Advanced Sustainable Systems 2, 1700155- 2018/02/02
Paper Yes Polarized Emission from Conjugated Polymer Chains Aligned by Epitaxial Growth during Off-Center Spin-Coating Takuya Anzai William Porzio Varun Vohra Journal of Chemistry 2017, 8637108- 2017/10/17
Paper Yes All solution-processed micro-structured flexible electrodes for low-cost light-emitting pressure sensors fabrication Rie Shimotsu, Takahiro Takumi, Varun Vohra Scientific Reports 7, 6921- 2017/07/31
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■ Research presentations
Oral presentation for an academic conference Efficient polymer solar cells based on eco-friendly active layer deposition processes 4th Global Nanotechnology Congress & Expo (GNCE-2018) Carbon nanomaterials Yes Varun VOHRA 2018/04/17
Oral presentation for an academic conference Low-cost and green fabrication of polymer solar cell active layers by push-coating JSAP Spring Meeting 2018 18p-G202-3 Yes Shusei Inaba Francesco Galeotti Varun Vohra 2018/03/18
Oral presentation for an academic conference Increasing the short-circuit current densities of polymer photovoltaic devices using self-assembled polymer nanostructures NANOSMAT-Asia 2017 NANO-87 Yes VOHRA Varun, TAKUMI Takahiro, ZAPPIA Stefania, DESTRI Silvia 2017/12/05
Oral presentation for an academic conference Oriented conjugated polymer films with polarized photoluminescence properties. IRAGO 2017 GSS2-9 Yes Takuya Anzai, Varun Vohra 2017/11/02
Oral presentation for an academic conference Formation of adequate donor-acceptor vertical concentration gradients in polymer solar cell active layers IRAGO 2017 GSS2-3 Yes Shusei Inaba, Varun Vohra 2017/11/02
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■ Awards
NENCS Poster Award (Student) Multilayer Active Layer Polymer Solar Cells with Enhanced Charge Collection and Power Conversion Efficiencies 2017/10/30
ICOE2017 Poster Award Push-coating: a low-cost and green fabrication approach to polymer electronic devices 2017/06/06
UNIMAS Silver Innovation Award Lamination and Spray Coating of Organic Solar Cells 2017/05/18
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