Research presentations
Number of published data : 86
No. Classification Title Conference Volume/issue/page Or an announcement number Refereed paper Author Date URL
1 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

2 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

3 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

4 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

5 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

6 Oral presentation for an academic conference
Is push-coating the adequate solution to solve the sustainability issue of organic solar cells fabrication?
AAAFM-UCLA
FESC-3
Yes
Varun Vohra, Shusei Inaba, Ayumu Kiyokawa, Francesco Galeotti
2021/08/19

7 Oral presentation for an academic conference
Green & sustainable methods or materials for next-generation photovoltaic device fabrication
Rensource 2021
Keynote/ day 1
Yes
Varun Vohra, Shusei Inaba, Ayumu Kiyokawa, Tomoaki Takada
2021/04/26

8 Oral presentation for an academic conference
Low-cost, green & sustainable push-coated conjugated polymer-based thin films for environment-friendly organic photovoltaics
ACS Spring Meeting
PMSE
Yes
Varun Vohra, Ayumu Kiyokawa, Yumi Matsunaga, Shusei Inaba
2021/04/09

9 Oral presentation for an academic conference
Strategies to Improve the Optical Properties and Sustainability of Solar Energy-Harvesting Photovoltaic Windows
The 9th Global Conference on Materials
Science and Engineering
Oral Session 1
Yes
Varun Vohra
2020/11/21

10 Oral presentation for an academic conference
Recycling of costly and durable transparent conductive electrodes from degraded organic solar cells
JSAP Autumn Meeting 2020
12.5. Organic solar cells/ 10a-Z11
Yes
Varun Vohra, Tomoaki Takada
2020/09/10

11 Oral presentation for an academic conference
Recycling of Costly Transparent Electrode Substrates from Degraded Organic Solar Cells
Online Summit on Recycling and Waste Management
Day 1/ Session 2
Yes
Varun Vohra, Tomoaki Takada
2020/07/02

12 Oral presentation for an academic conference
Green & Sustainable Fabrication of Organic Solar Cells
Online Summit on Carbon Materials and Nanotechnology
Session 2/ Invited 1
Yes
Varun Vohra, Shusei Inaba, Yumi Matsunaga, Tomoaki Takada
2020/06/30

13 Oral presentation for an academic conference
Simple strategies to produce efficient, green & sustainable organic photovoltaic devices
Advanced Materials Lecture Series 2020
IAAM Fellow Lecture
Yes

2020/06/10

14 Oral presentation for an academic conference
Towards sustainable and low-cost semitransparent photovoltaic windows produced with environmental-friendly processes
The 9th Conference on Nanomaterials (CN-BT 2019)
Keynote Speech-18
Yes

2019/12/15

15 Oral presentation for an academic conference
Green & sustainable fabrication of organic electronic devices by push-coating
30th Assembly of Advanced Materials Congress
IAAM Award lecture
Yes
Varun Vohra, Shusei Inaba, Takayuki Uchiyama, Yoshiko Okada
2019/11/01

16 Oral presentation for an academic conference
Long-lasting organic solar cells using natural carotenoids as electron donors
5th International Workshop on Nano and Bio-Photonics (IWNBP)
無し
Yes
V. Vohra, T. Uchiyama, Y. Okada-Shudo
2019/09/24

17 Oral presentation for an academic conference
Air-processed PCDTBT-based ternary active layers for neutral color semitransparent organic solar cells with a color rendering index of 98
International Conference on Organic Electronics 2019
Organic Solar Cells
Yes
V. Vohra
2019/06/28

18 Oral presentation for an academic conference
Efficient and stable organic solar cells produced by push-coating with no material or hazardous solvent wastes
4th Green and Sustainable Chemistry Conference
Session 1/ O1
Yes
Varun Vohra, Shusei Inaba, Ryosuke Arai, Yuko Takeoka
2019/05/06

19 Oral presentation for an academic conference
Highly sustainable PV windows employing natural dyes
4th Green & Sustainable Chemistry Conference
SP05
Yes
Varun Vohra
2019/05/06

20 Oral presentation for an academic conference
Natural β-carotene as electron donor materials in see-through organic solar cells
Optics & Photonics International Congress 2019
International Conference on Nano-photonics and Nano-optoelectronics 201
ICNN-P-19
Yes
Takayuki Uchiyama, Takahashi Sano, Varun Vohra, Yoshiko Okada-Shudo
2019/04/25

21 Oral presentation for an academic conference
天然色素βカロテンを電子ドナー材料として用いた透明有機太陽電池
2019年第66回応用物理学会春季学術講演会
11p-S221-7
Yes
内山 貴行、佐野 孝、Vohra Varun、岡田 佳子
2019/03/11

22 Oral presentation for an academic conference
Air-processed ternary active layers for neutral color transparent polymer solar cells
The 66th JSAP Spring Meeting 2019
10a-PB1-4
Yes
Takashi Sano, Shusei Inaba, Varun Vohra
2019/03/10

23 Oral presentation for an academic conference
天然色素を活性層の電子ドナー材料として用いた有機太陽電池
Optics & Photonics Japan 2018
G196/ 1aC9
Yes
内山 貴行、稲葉 柊生、ボーラ バルーン、 岡田 佳子
2018/11/01

24 Oral presentation for an academic conference
Innovative solutions for low-cost and sustainable fabrication of semi-transparent polymer solar cells
World Congress on Materials Research and Technology
2
Yes
VOHRA Varun
2018/10/23

25 Oral presentation for an academic conference
プッシュコート法による環境に配慮した低コスト有機太陽電池の作製
The 79th JSAP Autumn Meeting 2018
21p/ 432
Yes
Shusei Inaba, Varun Vohra
2018/09/21

26 Oral presentation for an academic conference
Improving sensing and optoelectronic technologies
using bio-inspired polymer nano- and micro-structures
EMN Meeting
A12
Yes
Varun Vohra
2018/08/07

27 Oral presentation for an academic conference
Recent advances in polymer solar cells fabrication using green processes
CCMR2018
Polymer Materials
Yes
Varun Vohra
2018/06/27

28 Oral presentation for an academic conference
Low-cost fabrication of polymer electronic devices employing the eco-friendly push-coating process
ISOME2018
O4/ 7
Yes
Varun Vohra
Shusei Inaba
Francesco Galeotti
Umberto Giovanella
2018/05/31

29 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

30 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

31 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

32 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

33 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

34 Oral presentation for an academic conference
Tuning the dimensions of self-assembled porous structures for enhanced light in-coupling in organic photovoltaic devices
IRAGO 2017
P38
Yes
Takahiro Takumi, Chiara Botta, Umberto Giovanella, Francesco Galeotti, Varun Vohra
2017/11/01

35 Oral presentation for an academic conference
Integration of self-assembled polymer nano- and microstructures into opto-electronic devices
IRAGO 2017
PPS1
Yes
Takuya Anzai, Takahiro Takumi, Chiara Botta, Umberto Giovanella, Francesco Galeotti, Varun Vohra
2017/11/01

36 Oral presentation for an academic conference
Eco-friendly Processes for Polymer Photovoltaic Device Fabrication
International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth
O-57
Yes
Varun Vohra, Shusei Inaba, Francesco Galeotti, Silvia Destri
2017/10/30

37 Oral presentation for an academic conference
Multilayer Active Layer Polymer Solar Cells with Enhanced Charge Collection and Power Conversion Efficiencies
International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth
2P-91
Yes
Shusei Inaba, Takuya Anzai, William Porzio, Varun Vohra
2017/10/29

38 Oral presentation for an academic conference
Environment-Friendly Polymer Solar Cell Fabrication With Reduced Chlorinated Solvent Wastes
World Congress of Nano Science & Technology – 2017
603/ I
Yes
Varun Vohra, Shusei Inaba, Silvia Destri
2017/10/25

39 Oral presentation for an academic conference
Color switchable hybrid LEDs based on aligned conjugated polymer multilayers
The 78th JSAP Autumn Meeting 2017
7a-PB2-19
Yes
Takuya Anzai, Varun Vohra
2017/09/07

40 Oral presentation for an academic conference
PDMS based processes to reach the requirements
for commercialization of polymer solar cells
AMN8-8th International Conference on Advanced Materials and Nanotechnology
S16/ 01
Yes
VOHRA Varun, INABA Shusei, ANZAI Takuya, PORZIO William
2017/02/14

41 Oral presentation for an academic conference
Nanostructured PDMS and its application to nanopixel OLED and pressure sensor fabrication
Nano S&T 2016
102/ II
Yes
VOHRA Varun
2016/10/27

42 Oral presentation for an academic conference
Amphiphilic low band-gap rod-coil block copolymers: a tool for water-processable organic solar cells
XXII CONVEGNO NAZIONALE DELL’ASSOCIAZIONE ITALIANA DI SCIENZA E TECNOLOGIA DELLE MACROMOLECOLE
無し
Yes
Stefania Zappia, Guido Scavia, Umberto Giovanella, Varun Vohra, Silvia Destri
2016/09/14

43 Oral presentation for an academic conference
大気化においてトランスファープリントで作製された適切なド
ナー・アクセプター濃度勾配の逆型有機薄膜太陽電池
第77回応用物理学会秋季学術講演会

Yes
安齊 拓也, 稲葉 柊生, William Porzio, Varun Vohra
2016/09/14

44 Oral presentation for an academic conference
Biomimetic photonic thin films from polymer-polymer self-assembly
NANOSMAT2016

Yes
Varun VOHRA, Francesco GALEOTTI, Chiara BOTTA
2016/09/08

45 Oral presentation for an academic conference
Self-assembled nano-/micro-porous polymer structures and their integration into functional devices
EMN Polymer meeting 2016
Polymer nanostructures/ III
Yes
VOHRA Varun
2016/01/13

46 Oral presentation for an academic conference
Approaching 10% power conversion efficiencies using a low bandgap polymer (PNTz4T):PC71BM single active layers solar cells
13th European Conference on Molecular Electronics (ECME2015)
friday afternoon session
Yes
Varun Vohra, Itaru Osaka, Kazuo Takimiya, Hideyuki Murata
2015/09/04

47 Oral presentation for an academic conference
Nanostructured self-assembled P3HT thin films and their application to enhance organic solar cell efficiency
4th International Conference on Nanotek and Expo
(Nanotek-2014)
Track 2
Yes
Varun Vohra, Hideyuki Murata
2014/12/01

48 Oral presentation for an academic conference
PNTz4T を用いた逆構造太陽電池
第74回応用物理学会学術講演会
18a/ A2
Yes
尾坂格, Varun Vohra, 川島和彰, 加々良剛志, 小金澤智之, 村田英幸, 瀧宮和男
2014/09/18

49 Oral presentation for an academic conference
両面受光型有機薄膜太陽電池を利用した光電荷分離機構の解明
第74回応用物理学会学術講演会
18p/ C6
Yes
大村佳弘,桑原貴之,當摩哲也,高橋光信,
東嶺孝一,Vohra Varun,村田秀幸
2014/09/18

50 Oral presentation for an academic conference
Comparative Study of Fullerene Derivatives in High Performance PNTz4T based OPV
JSAP Annual Autumn Meeting
17p/ A10
Yes
Varun Vohra, Itaru Osaka, Kazuo Takimiya, Hideyuki Murata
2014/09/17

51 Oral presentation for an academic conference
Solar Cell and Transistor Applications of Naphthodithiophene-Based Polymers
2013 International Conference on Solid State Devices and Materials
N-4-2
Yes
V. T. Tran, T. T. Dao, V. Vohra and H. Murata
2013/09/26

52 Oral presentation for an academic conference
High Efficiency Organic Photovoltaic Cells based on PNTz4T
EM-NANO 2013
A2-3
Yes
Varun Vohra, Itaru Osaka, Kazuo Takimiya, Koichi Higashimine, Hideyuki Murata
2013/06/18

53 Oral presentation for an academic conference
Fabrication of Inverted Bulk Heterojunction Organic Solar Cells by Completely Avoiding Any Vacuum Evaporation Processes
EM-NANO 2013
P2-13
Yes
Nur Tahirah Razali, Varun Vohra and Hideyuki Murata
2013/06/18

54 Oral presentation for an academic conference
The Novel Naphthodithiophene-based Copolymers for Application to Polymers Solar Cells
EM-NANO 2013
P1-10
Yes
Toan Viet Tran, Toan Thanh Dao, Varun Vohra and Hideyuki Murata
2013/06/18

55 Oral presentation for an academic conference
Improvement of the Conversion Efficiency of the Rubbed P3HT/PCBM Bilayer Solar Cell
EM-NANO 2013
P2-12
Yes
Ryou Itou, Varun Vohra, Kouichi Higashimine and Hideyuki Murata
2013/06/18

56 Oral presentation for an academic conference
Observation of Vertical Phase Segregation in Bulk Heterojunction Organic Solar Cells by Using Electron Dispersive X-ray Spectroscopy (EDS)
第60回 応用物理学会春季学術講演会
12.11/ 29a-G18
Yes
Nur Tahirah Razali, Varun Vohra, Koichi Higashimine, Nobuo Otsuka and Hideyuki Murata
2013/03/29

57 Oral presentation for an academic conference
Graded Bilayer Organic Solar Cells:An opportunity to process P3HT independently of PCBM
The Sixth Advanced Materials and Nanotechnology Conference(AMN6)
Thursday Parallel Session 1: M
Yes
Varun Vohra, Hideyuki Murata, Koichi Higashimine, Mariano Campoy-Quiles, Miquel Garriga, William Porzio, Michele Arrighetti, and Luisa Barba
2013/02/14

58 Oral presentation for an academic conference
Tuning the Vertical Concentration Gradient in P3HT:PCBM Graded Bilayer Solar Cells by Adding Regiorandom P3HT
10th International Conference on Nano-molecular Electronics
OF05
Yes
Varun Vohra, Koichi Higashimine and Hideyuki Murata
2012/12/14

59 Oral presentation for an academic conference
Enhanced Efficiency of Graded Bilayer P3HT/PCBM Solar Cells by Morphological Control of Intermixed Layer
10th International Conference on Nano-molecular Electronics
IT06
Yes
Varun Vohra, Koichi Higashimine, Mariano Campoy-Quiles, Miquel Garriga, Gianmichele
Arrighetti, Luisa Barba, William Porzio, Hideyuki Murata
2012/12/13

60 Oral presentation for an academic conference
ラビングによるP3HT:PCBMバルクヘテロ型太陽電池と二層型太陽電池の特性評価
平成24年度 応用物理学会 北陸・信越支部 学術講演会
unknown
Yes
伊東 嶺,Varun Vohra,東嶺 孝一, 村田 英幸
2012/11/16

61 Oral presentation for an academic conference
Enhancement of Photovoltaic Performances in Phase Separated Nanostructured Organic Devices
NANOSMAT USA 2012
NANO-58
Yes
V. Vohra, M. Campoy-Quiles, M. Garriga and H. Murata
2012/03/30

62 Oral presentation for an academic conference
Organic Light Emitting Diodes (OLED) having Conjugated Polymer Electrospun Nanofibers as the Active Electroluminescent Material
ICOE 2011
O6.3
Yes
V. Vohra, U. Giovanella, R. Tubino, H. Murata and C. Botta
2011/06/24

63 Oral presentation for an academic conference
Two step energy transfer in hybrid electroluminescent nanofibers
European Congress and Exhibition on Advanced Materials and Process 2009 – Euromat2009
unknown
Yes
V. Vohra, G. Calzaferri and C. Botta
2009/09/08

64 Oral presentation for an academic conference
Fluorescent nanofibers embedding dye loaded zeolite L crystals
First International Conference on Multifunctional, Hybrid and Nanomaterials - Hybrid Materials 2009
unknown
Yes
V. Vohra, G. Calzaferri and C. Botta
2009/03

65 Oral presentation for an academic conference
Microstructured dichromic films of electroluminescent polymers
7th International Conference on Electroluminescence of Molecular Materials and Related Phenomena - ICEL-7
unknown
Yes
V. Vohra, A. Bolognesi and C. Botta
2008/09

66 Oral presentation for an academic conference
Energy Transfer in electroluminescent polymeric nanofibers embedding dye loaded zeolites
European Materials Research Society Sping Meeting 2008 - EMRS 2008
unknown
Yes
V. Vohra, A. Devaux, G. Calzaferri and C. Botta
2008/05

67 Oral presentation for an academic conference
Zeolites embedded in electrospun fluorescent nanofibers
4th European Conference on Organic Electronics and Related Phenomena - ECOER’07
unknown
Yes
V. Vohra and C. Botta
2007/03

68 Symposium
Green & sustainable fabrication of conjugated polymer-based solar cells
3rd G'L'owing Polymer Symposium in KANTO
B13
Yes
Varun Vohra, Shusei Inaba, Yumi Matsunaga
2020/11/28

69 Symposium
Efficient ultra low-cost solar cells fabricated with green & sustainable push-coated organic active layers
The 2nd ASEAN - UEC Workshop on Energy and AI (UEC Workshop 2020)
Poster/ C-4
Yes
Ayumu Kiyokawa, Varun Vohra
2020/11/21

70 Symposium
Innovative and Eco-friendly processes for Organic Photovoltaic Device fabrication
エネルギー創製デバイスの将来展望
特別講演/ II
No
VOHRA Varun
2016/12/14

71 Symposium
Efficient Inverted Bulk Heterojunction Organic Solar Cells Fabricated by Lamination of Metal Leaf
CEMS InternationalSymposium on Supramolecular Chemistry and Functional Materials 2013
unknown
No
Nur Tahirah Razali, Itaru Osaka, Kazuo Takimiya, Varun Vohra and Hideyuki Murata
2013/12/16

72 Symposium
Influence of Alkyl Side Chains Length on Photovoltaic Properties of Naphtho [2,3-b:6,7-b'] dithiophene-Based Semiconducting Polymers
CEMS International Symposium on Supramolecular Chemistry and Functional Materials 2013
unknown
No
Toan Viet Tran, Toan Thanh Dao, Varun Vohra, and Hideyuki Murata
2013/12/16

73 Symposium
Enhanced efficiency by tuning the vertical concentration gradient in organic solar cells
International Symposium on Frontiers in Materials Science - FMS2013
PL1.2
No
Hideyuki Murata,Varun Vohra, Koichi Higashimine and Nur Tahirah Razali
2013/11/18

74 Symposium
Solar Cell and Transistor Applications of Naphthodithiophene-based Polymers
International Symposium on Advanced Materials 2013
unknown
Yes
Toan Viet Tran, Toan Thanh Dao, Varun Vohra, and Hideyuki Murata
2013/10/17

75 Symposium
Efficient Inverted Bulk Heterojunction Organic Solar Cells Fabricated by Lamination of Metal Leaves
International Symposium on Advanced Materials 2013
unknown
Yes
Nur Tahirah Razali, Varun Vohra and Hideyuki Murata
2013/10/17

76 Symposium
Enhanced Power Conversion Efficiency by Tuning the Vertical Concentration Gradient in P3HT:PCBM Bilayer Solar Cells
The Forth International Symposium on Emergence of Highly Elaborated π-Space and its Function
unknown
No
Varun Vohra, Gianmichele Arrighetti, Luisa Barba, Koichi Higashimine, Tatsuya Murakami, William Porzio and Hideyuki Murata
2012/11/13

77 Symposium
濃度傾斜層を有する高効率積層型有機子太陽電池
高次π空間の創発と機能開発 第8回公開シンポジウム
unknown
No
村田英幸、Varun Vohra
2012/07/19

78 Symposium
分子配向制御による有機薄膜太陽電池の性能向上 (招待講演)
有機・無機エレクトロニクスシンポジウム
unknown
No
村田英幸、松島敏則、Varun Vohra
2012/06/29

79 Workshop
ラビング処理によるP3HT/PCBM二層型太陽電池の変換効率向上
第二回有機太陽電池ワークショップ
unknown
No
伊東嶺、Varun Vohra, 東嶺孝一、村田英幸
2013/01/10

80 Keynote speech for an international conference
Green & sustainable methods or materials for next-generation photovoltaic device fabrication
International E-conference on Renewable Energy and Resources

Yes
Varun Vohra
2021/04/26

81 Other speech or lecture
Innovative opto-electronic devices based on conjugated polymers
Seminar at JAIST (Nomi, Japan)

No
VOHRA Varun
2016/05/26

82 Other speech or lecture
Morphology of phase separated thin films based on conjugated polymers for opto-electronics
Seminar at ISMAC-CNR (Milano, Italy)

No
Varun VOHRA
2016/02/19

83 Other speech or lecture
One step closer to the commercialization of organic photovoltaics
Seminar at Jiao Tong University (Shanghai, China)

No
Varun VOHRA
2014/07/10

84 Other speech or lecture
Polymer nanostructure formation
Seminar at Jiao Tong University (Shanghai, China)

No
Varun VOHRA
2014/07/10

85 Other speech or lecture
Electrospinning and soft lithography for opto-electronics
Seminar at ISMAC-CNR (Milano, Italy)

No
Varun Vohra
2013/12/17

86 Other speech or lecture
Meeting the Requirements for Commercialization of Organic Solar Cells
Seminar at ISMAC-CNR (Milano, Italy)

No
Varun Vohra
2013/12/16