Xiaodan Gu

Assistant Professor Polymer Science

Research Group Website


2014-2016Postdoctoral Fellow, Stanford University
2014-2016Postdoctoral Fellow, SLAC National Accelerator Laboratory 

Ph.D. Polymer Science & Engineering, University of Massachusetts Amherst, MA

2011-2014Doctoral Fellowship in Residence, Advanced Light Source, Lawrence Berkeley National Lab  
2011- 2014Visiting Researcher, Molecular Foundry, Lawrence Berkeley National Lab 
2004–2008B.S. Chemistry, Nanjing University, China  













Printed organic electronics, flexible electronic, scalable manufacture, polymer physics, block copolymer lithography,  X-ray diffraction/scattering,  X-ray spectroscopy.


Google Scholar: https://scholar.google.com/citations?user=c5Q09BMAAAAJ&hl=en


  1. X. Gu, H. Yan, T. Kurosawa, B. C. Schroeder, K. L. Gu, Y. Zhou, J. W. F. To, S. D. Oosterhout, V. Savikhin, F. Molina-Lopez, C. J. Tassone, S. C. B. Mannsfeld, C. Wang, M. F. Toney, and Z. Bao, “Comparison of the Morphology Development of Polymer–Fullerene and Polymer–Polymer Solar Cells during Solution-Shearing Blade Coating,” Adv. Energy Mater., pp. n/a–n/a, 2016.

  2. X. Gu, J. Reinspach, B. J. Worfolk, Y. Diao, Y. Zhou, H. Yan, K. Gu, S. Mannsfeld, M. F. Toney, and Z. Bao, “Compact Roll-to-Roll Coater for in Situ X-ray Diffraction Characterization of Organic Electronics Printing,” ACS Appl. Mater. Interfaces, vol. 8, no. 3, pp. 1687–1694, Jan. 2016.

  3. X. Gu, I. Gunkel, A. Hexemer, and T. P. Russell, “Controlling Domain Spacing and Grain Size in Cylindrical Block Copolymer Thin Films by Means of Thermal and Solvent Vapor Annealing,” Macromolecules, vol. 49, no. 9, pp. 3373–3381, May 2016.

  4. I. Gunkel, X. Gu, Z. Sun, E. Schaible, A. Hexemer, and T. P. Russell, “An in situ GISAXS study of selective solvent vapor annealing in thin block copolymer films: Symmetry breaking of in‐plane sphere order upon deswelling,” J. Polym. Sci. B Polym. Phys., vol. 54, no. 2, pp. 331–338, 2015.

  5. X. Gu, I. Gunkel, A. Hexemer, W. Gu, and T. P. Russell, “An In Situ Grazing Incidence X-Ray Scattering Study of Block Copolymer Thin Films During Solvent Vapor Annealing,” Adv. Mater., vol. 26, no. 2, pp. 273–281, Nov. 2013.

  6. X. Gu, I. Gunkel, A. Hexemer, and T. P. Russell, “Solvent vapor annealing of block copolymer thin films: removal of processing history,” Kolloid-Zeitschrift & Zeitschrift für Polymere, vol. 292, no. 8, pp. 1795–1802, Jun. 2014.

  7. X. Gu, I. Gunkel, and T. P. Russell, “Pattern transfer using block copolymers,” Philosophical Transactions of the Royal Society of London A: Mathematical, Physical and Engineering Sciences, vol. 371, no. 2000, pp. 20120306–20120306, Sep. 2013.

  8. X. Gu, Z. Liu, I. Gunkel, S. T. Chourou, S. W. Hong, D. L. Olynick, and T. P. Russell, “High Aspect Ratio Sub‐15 nm Silicon Trenches From Block Copolymer Templates,” Adv. Mater., vol. 24, no. 42, pp. 5688–5694, 2012.

  9. X. Gu, P. Dorsey, and T. P. Russell, “High Density and Large Area Arrays of Silicon Oxide Pillars with Tunable Domain Size for Mask Etch Applications,” Adv. Mater., vol. 24, no. 40, pp. 5505–5511, 2012.

  10. S. W. Hong, X. Gu, J. Huh, S. Xiao, and T. P. Russell, “Circular Nanopatterns over Large Areas from the Self-Assembly of Block Copolymers Guided by Shallow Trenches,” ACS Nano, vol. 5, no. 4, pp. 2855–2860, Apr. 2011.

  11. J. Y. Oh, S. Rondeau-Gagné, Y.-C. Chiu, A. Chortos, F. Lissel, G.-J. N. Wang, B. C. Schroeder, T. Kurosawa, J. Lopez, T. Katsumata, J. Xu, C. Zhu, X. Gu, W.-G. Bae, Y. Kim, L. Jin, J. W. Chung, J. B. H. Tok, and Z. Bao, “Intrinsically stretchable and healable semiconducting polymer for organic transistors,” Nature, vol. 539, no. 7629, pp. 411–415, Nov. 2016.

  12. Y. Diao, Y. Zhou, T. Kurosawa, L. Shaw, C. Wang, S. Park, Y. Guo, J. A. Reinspach, K. Gu, X. Gu, B. C. K. Tee, C. Pang, H. Yan, D. Zhao, M. F. Toney, S. C. B. Mannsfeld, and Z. Bao, “Flow-enhanced solution printing of all-polymer solar cells,” Nat Commun, vol. 6, pp. 7955–, Aug. 2015.

  13. B. D. Naab, X. Gu, T. Kurosawa, J. W. F. To, A. Salleo, and Z. Bao, “Role of Polymer Structure on the Conductivity of N-Doped Polymers,” Adv. Electron. Mater., vol. 2, no. 5, pp. n/a–n/a, 2016.

  14. B. C. Schroeder, Y.-C. Chiu, X. Gu, Y. Zhou, J. Xu, J. Lopez, C. Lu, M. F. Toney, and Z. Bao, “Non-Conjugated Flexible Linkers in Semiconducting Polymers: A Pathway to Improved Processability without Compromising Device Performance,” Adv. Electron. Mater., vol. 2, no. 7, pp. n/a–n/a, 2016.

  15. T. Kurosawa, Y.-C. Chiu, Y. Zhou, X. Gu, W.-C. Chen, and Z. Bao, “Impact of Polystyrene Oligomer Side Chains on Naphthalene Diimide–Bithiophene Polymers as n-Type Semiconductors for Organic Field-Effect Transistors,” Adv. Funct. Mater., vol. 26, no. 8, pp. 1261–1270, 2016.

  16. Y. Zhou, K. L. Gu, X. Gu, T. Kurosawa, H. Yan, Y. Guo, G. I. Koleilat, D. Zhao, M. F. Toney, and Z. Bao, “All-Polymer Solar Cells Employing Non-Halogenated Solvent and Additive,” Chem. Mater., vol. 28, no. 14, pp. 5037–5042, Jul. 2016.

  17. Y.-L. Rao, A. Chortos, R. Pfattner, F. Lissel, Y.-C. Chiu, V. Feig, J. Xu, T. Kurosawa, X. Gu, C. Wang, M. He, J. W. Chung, and Z. Bao, “Stretchable Self-Healing Polymeric Dielectrics Cross-Linked Through Metal–Ligand Coordination,” J. Am. Chem. Soc., vol. 138, no. 18, pp. 6020–6027, May 2016.

  18. K. L. Gu, Y. Zhou, X. Gu, H. Yan, Y. Diao, T. Kurosawa, B. Ganapathysubramanian, M. F. Toney, and Z. Bao, “Tuning domain size and crystallinity in isoindigo/PCBM organic solar cells via solution shearing,” Organic Electronics, vol. 40, pp. 79–87, Jan. 2017.

  19. C. Wang, W.-Y. Lee, D. Kong, R. Pfattner, G. Schweicher, R. Nakajima, C. Lu, J. Mei, T. H. Lee, H.-C. Wu, J. Lopez, Y. Diao, X. Gu, S. Himmelberger, W. Niu, J. R. Matthews, M. He, A. Salleo, Y. Nishi, and Z. Bao, “Significance of the double-layer capacitor effect in polar rubbery dielectrics and exceptionally stable low-voltage high transconductance organic transistors,” Sci. Rep., vol. 5, pp. 17849 EP ––8, Dec. 2015.

  20. S. Park, G. Giri, L. Shaw, G. Pitner, J. Ha, J. H. Koo, X. Gu, J. Park, T. H. Lee, J. H. Nam, Y. Hong, and Z. Bao, “Large-area formation of self-aligned crystalline domains of organic semiconductors on transistor channels using CONNECT,” Proc Natl Acad Sci USA, vol. 112, no. 18, pp. 5561–5566, May 2015.

  21. Z. Liu, X. Gu, J. Hwu, S. Sassolini, and D. L. Olynick, “Low-temperature plasma etching of high aspect-ratio densely packed 15 to sub-10 nm silicon features derived from PS-PDMS block copolymer patterns,” Nanotechnology, vol. 25, no. 28, p. 285301, 2014.

  22. S. W. Hong, J. Huh, X. Gu, D. H. Lee, W. H. Jo, S. Park, T. Xu, and T. P. Russell, “Unidirectionally aligned line patterns driven by entropic effects on faceted surfaces.,” Proc Natl Acad Sci USA, vol. 109, no. 5, pp. 1402–1406, Jan. 2012.

  23. Q. Wu, Z. Wang, X. Kong, X. Gu, and G. Xue, “A Facile Strategy for Controlling the Self-Assembly of Nanocomposite Particles Based on Colloidal Steric Stabilization Theory,” Langmuir, vol. 24, no. 15, pp. 7778–7784, Aug. 2008.