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Bob Street

Bob's research interests are in large-area electronic materials and devices, including amorphous silicon (a-Si), flat panel x-ray image sensors, and more recently, printed organic semiconductors, flexible electronics, nanowire devices, and solar cells. He is exploring: printing technologies that could replace the photolithographic techniques traditionally used to create thin-film transistors; and solution-based organic materials to create large-area transistor and sensor arrays.

Bob’s previous work on digital x-ray imaging has been commercialized through PARC spin-off dPix, the world's leading source for high-resolution a-Si sensor arrays that provide the foundation for medical, industrial, military, and security X-ray imaging. dPix was acquired by Trixell (a Siemens Medical/ Phillips Medical/ Thomson-CSF joint venture), Planar Systems, and Varian Medical in 1999.

Bob has over 75 patents and has been honored with the American Physical Society David Adler Award and The American Institute of Physics prize for Industrial Applications of Physics. He has published more than 350 papers and articles and has served as Associate Editor of both the Journal of Materials Research and Solid State Science and Technology. Bob has also served on the National Research Council Committee for Material Science and Engineering, as well as the ICAMS (International Conference on Amorphous and Microcrystalline Semiconductors) Program Committee and International Advisory Committee.

Dr. Bob Street holds a Ph.D. and B.S. in physics, both from Cambridge University in England. He joined PARC in 1976.


PARC publications

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Flexible Electronics and Oral Biosensing

255th ACS National Meeting, New Orleans, LA

18 March 2018


Flexible hybrid electronic circuits and systems

IEEE Journal of Emerging and Selected Topics (JETCAS)

15 August 2016


Radiation induced defects in poly(3-alkylthiophene)

Materials Research Society Spring 2014 Meeting

24 April 2014

Solgel processed oxide thin-film transistors with mobility up to 30cm2/Vs

Flexible and Printed Electronics Conference

3 February 2014

Sol-gel solution-deposited InGaZnO thin film transistors

Applied Materials and Interfaces (American Chemical Society)

13 January 2014


A decade of organic/polymeric photovoltaic research

to be published in Advanced Materials


Flexible, large-area sensor circuits fabricated by additive printing

2013 and Beyond: Flexible Electronics Symposium at TMS Annual Meeting

4 March 2013


Flexible, large-area sensor circuits fabricated by additive printing

2012 NanoTechnology for Defense Conference

8 August 2012


Charge transport and recombination in organic solar cells

SPIE Optics and Photonics 2011

21 August 2011

Band tails and polarons in organic solar cells

Organic Microelectronics & Optoelectronics Workshop VII

20 July 2011

Large area a-Si/Si nanowire hybrid solar cells

Nanotech Conference and Expo 2011

13 June 2011

Disordered nanowire based photovoltaics

2011 MRS Spring Meeting

28 April 2011


Amorphous silicon transistors and photodiodes

Book Chapter in Solar Cells and Their Applications


Study of inkjet printing parameters to fabricate LCD color filter

Journal of Imaging Science and Technology

2010 September/October

Jet-printed Si nanowires for flexible backplane applications

Nanotech Conference Technical Proceedings

23 June 2010

Determination of recombination mechanisms in organic solar cells

IEEE 35th Photovoltaic Specialists Conference

21 June 2010

Recombination in organic solar cells

MRS 2010 Spring Meeting

6 April 2010


Amorphous silicon thin film transistor image sensors

Philosophical Magazine

October 2009

Low temperature amorphous silicon p-i-n photodiodes

Physica Status Solidi B

August 2009

Thin film transistors

Advanced Materials

25 May 2009

Transient drain current of polymer transistors

Journal of Applied Physics

11 March 2009

Defect identification in large area electronic backplanes

IEEE Journal of Display Technology

January 2009


The interplay of materials in printed electronics

MRS Fall 2008 Meeting

1 December 2008

Reflectivity of disordered silicon nanowires

Applied Physics Letters

21 October 2008

Characterization of flexible image sensor arrays with bulk heterojunction organic photodiodes

SPIE Conference on Organic Field-Effect Transistors VII and Organic Semiconductors in Sensors and Bioelectronics

10 August 2008

Flexible and printed electronics for displays and image sensors

The Future Prospects and Obstacles of Organic Electronics

25 February 2008

Flexible and printed electronics for displays and image sensors

The Future Prospect and Obstacles of Organic Electronics

25 February 2008


Digital lithographic processing for large-area electronics

Journal of the Society for Information Display

31 July 2007

Bias stress effects in organic thin film transistors

IEEE International Reliability Physics Symposium

15 April 2007

Effects of mechanical stress on printed polymer-based TFTs on flexible display backplanes

Materials Research Society, 2007 Spring Meeting

9 April 2007


Extended time bias stress effects in polymer transistors

Journal of Applied Physics

1 December 2006

Stability of polymeric thin-film transistors

American Institute of Chemical Engineers National Meeting

11 November 2006

Toolset for printed electronics

International Conference on Digital Fabrication Technologies (DF 2006)

17 September 2006

Effects of mechanical stress on printed polymer-based TFTs on flexible display backplanes

2006 Gordon Research Conference (GRC) on Thin Films

30 July 2006

Jet-printed active-matrix backplanes and electrophoretic displays

13th International Workshop on Active-Matrix Flatpanel Displays and Devices

5 July 2006

Vertically integrated amorphous silicon color sensor arrays

IEEE Transactions on Electron Devices

1 July 2006

All additive ink jet printed backplanes for displays

34th Annual Northern California Electronic Materials Symposium

28 April 2006

Jet printing flexible displays

Materials Today

April 2006

Color aliasing free thin-film sensor array

Sensors and Actuators A

13 March 2006

Conducting polymers: the benefits of order

Nature Materials

1 March 2006

Printed polymer-based TFTs for flexible display backplanes

USDC Flexible Display & Microelectronics Conference

7 February 2006

Vertically segregated polymer blends: their use in organic electronics

Journal of Macromolecular Science C: Polymer Reviews

January - March 2006


Printed organic electronics

Chapter in Flexible Flat Panel Displays


Transport in polycrystalline polymer TFTs

Physical Review B

15 April 2005

Fine-feature patterning of giant-area flexible electronics by microcontact printing and digital lithography

Proceedings of the Spring 2005 Materials Research Society Meeting

28 March 2005


Digital-lithographic processing for thin-film transistor array fabrication

Proceedings of the 20th International Conference on Amorphous and Microcrystalline Semiconductors

31 December 2004

All jet-printed polymer thin-film transistor active-matrix backplanes

Third Annual Printable Electronics and Displays Conference and Exhibition

9 November 2004

210 items 123nextNextlast