Personal Details

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Dr. WILLIAMS, Evan Laurence

Scientist II/ Deputy Dept Head, Electronic Materials

Staff

Industry Development Office, Electronic Materials (ELE) Department

63194903

williamse@imre.a-star.edu.sg

2 Fusionopolis Way. Innovis, #08-03, Singapore 138634


Research Details


  • Organic Electronics and Opto-electronics
  • Organic Light-Emitting Diodes
  • Organic Photovoltaics
  • Printed Electronics
  • Charge Carrier Transport and Recombination
  • Excited State Spectroscopy
  • Fabrication and Characterization of Organic Opto-electronic Devices
  • Fluorescence Lifetime Measurements
  • Transient Absorption Measurements
  • Strategic Technology and Operation Roadmapping
  • Organic/Polymer Electronics: Novel Materlals and Devices Structures for Application in OPV, OFET & OLEFET
  • Ultrafast transient Absorption Techniques to Study Charge Generation Dynamics for Holistic OPV Materials and Devices Characterization from Charge generation to Collection

Research Scientist and Engineer at IMRE, Singapore 01/2008-present

Innovation Lead at the Materials Center of Innovation (MCOI), IMRE 09/2013-present

 

Project leader: 03/2012-06/2013
Visiting Investigator Project with Prof. Ananth Dodabalapur (University of Texas Austin, Texas, USA) “Organic / Polymer Electronics - Novel Materials & Device Structures”

Project co-leader: 11/2010- 11/2013

A*STAR-JST (Japan Science and Technology Agency) collaboration “Ultrafast transient absorption techniques to study charge generation dynamics for holistic OPV materials and devices”. 

  • PhD, School of Materials, Arizona State University, USA, 2007
  • M.Sc. Optical Science Center, University of Arizona, USA, 2007
  • M.Eng. Material Science & Engineering Dept., Cornell University, USA, 2001
  • B.S. Material Science & Engineering Dept., Cornell University, USA, 2000
  • Received a 2007 MRS Spring Meeting Graduate Student Award.
  • Awarded a 2013 Research Visitor Fellowship with the Priority Research Centre for Organic Electronics at the University of Newcastle, Australia.
  • Fellow of the US NSF-sponsored Global School for Advanced Studies (GSAS) session on organic photovoltaics, Taipei, Taiwan, 2012
  • Executive Chair of International Union of Materials Research Societies - Internation Conference of Young Researchers on Advanced Materials (IUMRS-ICYRAM) 2012
  • Co-Treasurer of MRS-S (2012 - 2014)
  • Joint Secretary of MRS-S (2014 - To-date)

 

 

  • E.L. Williams; T. Ang; Z. Ooi; P. Sonar; T. Lin; W. Neo; J. Song.; J. Hobley, Optical characterization of the hole polaron in a series of diketopyrrolopyrrole polymers used for organic photovoltaics. Polymers, 7, 69, 2014.
  • B. Vaughan; E.L. Williams; N.P. Holmes; P. Sonar; A. Dodabalapur; P.C. Dastoor; W.J. Belcher, Water-based nanoparticulate solar cells using a diketopyrrolopyrrole donor polymer. Physical Chemistry Chemical Physics, 16, 2647, 2014.
  • H. Matsuzaki; A. Furube; R. Katoh; S.P. Singh; P. Sonar; E.L. Williams; C. Vijila; G.S. Subramanian; S. Gorelik; J. Hobley, Excited-state dynamics in diketopyrrolopyrrole-based copolymer for organic photovoltaics investigated by transient optical spectroscopy. Japanese Journal of Applied Physics, 53, 2014.
  • C. Vijila; S.P. Singh; E.L. Williams; P. Sonar; A. Pivrikas; B. Philippa; R. White;E.N. Kumar; S.G. Sandhya; S. Gorelik, et al. Relation between charge carrier mobility and lifetime in organic photovoltaics. Journal of Applied Physics, 114, 2013.
  • P. Sonar; E.L. Williams; S.P. Singh; S. Manzhos; A. Dodabalapur, A benzothiadiazole end capped donor-acceptor based small molecule for organic electronics. Physical Chemistry Chemical Physics, 15, 17064, 2013.
     

• E. L. Williams, S. Gorelik, I. Phang, M. Bosman, C. Vijila, G. S. Subramanian, P. Sonar, J. Hobley, S. P. Singh, H. Matsuzaki, A. Furube, and R. Katoh, “Nanoscale phase domain structure and associated device performance of organic solar cells based on a diketopyrrolopyrrole polymer,” RSC Advances, vol. 3, no. 43, p. 20113, 2013.


• P. Sonar, E. L. Williams, S. P. Singh, S. Manzhos, and A. Dodabalapur, “A benzothiadiazole end capped donor-acceptor based small molecule for organic electronics.,” Physical chemistry chemical physics: PCCP, vol. 15, no. 40, pp. 17064–9, Sep. 2013.

• P. Sonar, S. P. Singh, E. L. Williams, Y. Li, M. S. Soh, and A. Dodabalapur, “Furan containing diketopyrrolopyrrole copolymers: synthesis, characterization, organic field effect transistor performance and photovoltaic properties,” Journal of Materials Chemistry, vol. 22, no. 10, p. 4425, 2012.

• E. L. Williams, Z. Ooi, P. Sonar, and A. Dodabalapur, “Measurement of contact voltage drop and resistance in organic solar cells,” Applied Physics Letters, vol. 101, no. 25, p. 253902, 2012.

• P. Sonar, E. L. Williams, S. P. Singh, and A. Dodabalapur, “Thiophene–benzothiadiazole–thiophene (D–A–D) based polymers: effect of donor/acceptor moieties adjacent to D–A–D segment on photophysical and photovoltaic properties,” Journal of Materials Chemistry, vol. 21, no. 28, p. 10532, 2011.

• M. S. Soh, S. A. G. Santamaria, E. L. Williams, M. Pérez-Morales, H. J. Bolink, and A. Sellinger, “Solution processable high band gap hosts based on carbazole functionalized cyclic phosphazene cores for application in organic light-emitting diodes,” Journal of Polymer Science Part B: Polymer Physics, vol. 49, no. 7, pp. 531–539, Apr. 2011.

• W. W. H. Wong, T. B. Singh, D. Vak, W. Pisula, C. Yan, X. Feng, E. L. Williams, K. L. Chan, Q. Mao, D. J. Jones, C.-Q. Ma, K. Müllen, P. Bäuerle, and A. B. Holmes, “Solution Processable Fluorenyl Hexa-peri-hexabenzocoronenes in Organic Field-Effect Transistors and Solar Cells,” Advanced Functional Materials, vol. 20, no. 6, pp. 927–938, Mar. 2010.

• W. Zeng, K. S. L. Chong, H. Y. Low, E. L. Williams, T. L. Tam, and A. Sellinger, “The use of nanoimprint lithography to improve efficiencies of bilayer organic solar cells based on P3HT and a small molecule acceptor,” Thin Solid Films, vol. 517, no. 24, pp. 6833–6836, Oct. 2009.

• E. L. Williams, K. Haavisto, J. Li, and G. E. Jabbour, “Excimer-Based White Phosphorescent Organic Light-Emitting Diodes with Nearly 100 % Internal Quantum Efficiency,” Advanced Materials, vol. 19, no. 2, pp. 197–202, Jan. 2007.

• E. L. Williams, J. Li, and G. E. Jabbour, “Organic light-emitting diodes having exclusive near-infrared electrophosphorescence,” Applied Physics Letters, vol. 89, no. 8, p. 083506, 2006.

• E. L. Williams, G. E. Jabbour, Q. Wang, S. E. Shaheen, D. S. Ginley, and E. A. Schiff, “Conducting polymer and hydrogenated amorphous silicon hybrid solar cells,” Applied Physics Letters, vol. 87, no. 22, p. 223504, 2005.

• A. Sellinger, R. Tamaki, R. M. Laine, K. Ueno, H. Tanabe, E. Williams, and G. E. Jabbour, “Heck coupling of haloaromatics with octavinylsilsesquioxane: solution processable nanocomposites for application in electroluminescent devices.,” Chemical communications (Cambridge, England), no. 29, pp. 3700–2, Aug. 2005.

• Q. Wang, S. E. Shaheen, E. L. Williams, and G. E. Jabbour, “Hybrid organic-inorganic photoconductive diode,” Applied Physics Letters, vol. 83, no. 16, p. 3404, 2003.



Last updated on : 17 Nov 2017 03:09 PM