Wearable Optoelectronics

ACS Applied Electronic Materials, 2023

Wearable Power Source

OMEx, 2022

Quantum Dot NIR LEDs

Nature Photonics, 2016

Quantum Dots in Perovskite

Nature, 2015


Molecular design of defect passivators for thermally stable metal-halide perovskite films

H. Kim, C. A. F. Morales, S. Seong, Z. Hu, N. Muyanja, S. Penukula, T. Zheng, Z. Pizzo, C. Yim, A. Lenert, N. Rolston, and X. Gong

Matter, (2024) [HTML] 

Strategies to improve the mechanical robustness of metal halide perovskite solar cells

M. Li, S. Johnson, L. Gil-Escrig, M. Sohmer, C. A. F. Morales, H. Kim, S. Sidhik, A. Mohite, X. Gong, L. Etgar, H. Bolink, A. Palmstrom, M. McGehee, and N. Rolston

Energy Adv., (2024) [HTML] 


Heterostructure Engineering of Solution-Processable Semiconductors for Wearable Optoelectronics

H. Kim, S. Seong, and X. Gong

ACS Applied Electronic Materials, (2023) [HTML] [HTML] 

Technology roadmap for flexible sensors

Y. Luo, ....X. Gong...., X. Chen*.

ACS Nano, (2023) [HTML]


Mechanical Study of Perovskite Solar Cells: Opportunities and Challenges for Wearable Power Source

S. Seong, Y. Liu, X. Gong

Optical Materials Express, 12(2), 772-787 (2022)  [HTML]


High-frequency and intrinsically stretchable polymer diodes

N. Matsuhisa*, S. Niu*, S. JK O’Neill, J. Kang, Y. Ochiai, T. Katsumata, H.-C. Wu, M. Ashizawa, G.-J. N. Wang, D. Zhong, X. Wang, X. Gong, R. Ning, H. Gong, I. You, Y. Zheng, Z. Zhang, J. B.-H. Tok, X. Chen, Z. Bao

Nature (2021), 600, 2021 [HTML]

Reply to: Perovskite decomposition and missing crystal planes in HRTEM

Z. Ning*, X. Gong*, R. Comin*, G. Walters, F. Fan, O. Voznyy, E. Yassitepe, A. Buin, S. Hoogland and E. H. Sargent

Nature, 594, E8–E9 (2021)  [HTML]

Efficient Tandem Quantum‐Dot LEDs Enabled by An Inorganic Semiconductor‐Metal‐Dielectric Interconnecting Layer Stack

Qianqian Wu, Xiwen Gong, Dewei Zhao, Yong‐Biao Zhao, Fan Cao, Haoran Wang, Sheng Wang, Jianhua Zhang, Rafael Quintero‐Bermudez, Edward H Sargent, Xuyong Yang

Advanced Materials, 2108150 (2021)  [HTML]

Previous Years


Matter, 3, 602–622 (2020) [HTML]

A Multi-functional Molecular Modifier Enabling Efficient Large-Area Perovskite Light-Emitting Diodes

H. Wang*, X. Gong*, D. Zhao*, Y.-B. Zhao*, S. Wang, J. Zhang, L. Kong, B. Wei, R. Quintero-Bermudez, O. Voznyy, Y. Shang, Z. Ning, Y. Yan, E. H. Sargent, X. Yang

Joule, 4, 1–11 (2020) [HTML]


Contactless Measurements of Photocarrier Transport Properties in Perovskite Single Crystals

X. Gong*, Z. Huang*, R. Sabatini, C.-S. Tan, G. Bappi, G. Walters, A. Proppe, M. I. Saidaminov, O. Voznyy, S. O. Kelley, E. H. Sargent 

Nature Communications 10, 1591 (2019)  [HTML]

In Situ Back‐Contact Passivation Improves Photovoltage and Fill Factor in Perovskite Solar Cells

F. Tan, H. Tan, M. I. Saidaminov, M. Wei, M. Liu, A.Mei, P. Li, B. Zhang, C.‐S. Tan, X. Gong, Y. Zhao, A. R. Kirmani, Z. Huang, J. Z. Fan, R. Quintero‐Bermudez, J. Kim, Y. Zhao, O. Voznyy, Y. Gao, F. Zhang, L. J. Richter, Z.‐H. Lu, W. Zhang, E. H. Sargent

Advanced Materials 31, 1807435 (2019)  [HTML]

Halogen Vacancies Enable Ligand‐Assisted Self‐Assembly of Perovskite Quantum Dots into Nanowires

J. Pan*, X. Li*, X. Gong*, J. Yin, D. Zhou, L. Sinatra, R. Huang, J. Liu, J. Chen, I. Dursun, A. M. El-Zohry, M. Saidaminov, H.T. Sun, O. F. Mohammed, C. Ye, E. H. Sargent, O. Bakr

Angewandte Chemie 131, 16223-16227 (2019)  [HTML]


Perovskite Light-emitting Diodes with External Quantum Efficiency Exceeding 20 Per Cent

K. Lin, J. Xing, L. N. Quan, F. P. García de Arquer, X. Gong, J. Lu, L. Xie, W. Zhao, D. Zhang, C. Yan, W. Li, X. Liu, Y. Lu, J. Kirman, E. H. Sargent, Q. Xiong, Z. Wei 

Nature, 562, 245–248(2018)  [HTML] | News Coverage: [Physics World; Nature Asia]

Electron–phonon Interaction in Efficient Perovskite Blue Emitters

X. Gong, O. Voznyy, A. Jain, W. Liu, R. Sabatini, Z. Piontkowski, G. Walters, G. Bappi, S. Nokhrin, O. Bushuyev, M. Yuan, R. Comin, D. McCamant, S. O. Kelley, E. H. Sargent

Nature Materials 17, 550–556(2018)  [HTML] | News Coverage: [Physics World]

Bright Colloidal Quantum Dot Light-emitting Diodes Enabled by Efficient Chlorination

X. Li, Y. Zhao, F. Fan, L. Levina, M. Liu, R. Quintero-Bermudez, X. Gong, L. Quan, J. Fan, Z. Yang , S. Hoogland, O. Voznyy, Z.Lu, E. H. Sargent

Nature Photonics, 12, 159–164 (2018) [HTML]

Spin Control in Reduced-dimensional Chiral Perovskites

G. Long, C. Jiang, R. Sabatini, Z. Yang, M. Wei, L. Quan, Q. Liang, A. Rasmita, M. Askerka, G. Walters, X. Gong, J. Xing, X. Wen, R. Quintero-Bermudez, H. Yuan, G. Xing, X. R. Wang, D. Song, O. Voznyy, M. Zhang, S. Hoogland, W. Gao, Q. Xiong, E. H. Sargent

Nature Photonics, 12, 528–533 (2018) [HTML]

Color-stable Highly Luminescent Sky-blue Perovskite Light-emitting Diodes

J. Xing, Y. Zhao, M. Askerka, L. N. Quan, X. Gong, W. Zhao, J. Zhao, H. Tan, G. Long, L. Gao, Z. Yang, O. Voznyy, J. Tang, Z.-H. Lu, Q. Xiong, E. H. Sargent

Nature Communications, 9, 3541 (2018) [HTML]

Perovskite Seeding Growth of Formamidinium-lead-iodide-based Perovskites for Efficient and Stable Solar Cells

Y. Zhao, H. Tan, H. Yuan, Z. Yang, J. Fan, J. Kim , O. Voznyy, X. Gong, L. Quan, C. Tan, J. Hofkens, D. Yu, Q. Zhao, E. H. Sargent

Nature Communications, 9, 1607 (2018) [HTML]


Field-emission from Quantum-dot-in-perovskite Solids

F. P. Garcia de Arquer*, X. Gong*, M. Liu, G. Kim, B. R. Sutherland, R. Comin, O. Voznyy, S. Hoogland, D. Sinton and E. H. Sargent,

Nature Communications, 8, 14757 (2018)  [HTML] 

Nano Focus: Electron Diffraction Enables Localization of Hydrogen Atoms in Nanocrystals

X. Gong

MRS Bulletin (News Article) 42, 243 (2017)  [HTML] 


X. Gong*, Z. Yang*, G. Walters, R. Comin, Z. Ning, E. Beauregard, V. Adinol, O. Voznny, E. H. Sargent

Nature Photonics, 10, 253-257 (2016[HTML] |News Coverage: [, chembites]

Crosslinked Remote‐doped Hole‐extracting Contacts Enhance Stability Under Accelerated Lifetime Testing in Perovskite Solar Cells

J. Xu, O. Voznyy, R. Comin, X. Gong, G. Walters, M. Liu, P. Kanjanaboos, X. Lan, E. H. Sargent

Advanced Materials 28, 2807-2815 (2016)  [HTML] 

Amine‐free Synthesis of Cesium Lead Halide Perovskite Quantum Dots for Efficient Light‐emitting Diodes

E. Yassitepe, Z. Yang, O. Voznyy, Y. Kim, G. Walters, J. Castaneda, P. Kanjanaboos, M. Yuan, X. Gong, F. Fan, J. Pan, S. Hoogland, R. Comin, O. Bakr, L. Padilha, A. Nogueira, E. H. Sargent

Advanced Functional Materials, 15 (11), 7539-7543 (2016[HTML] 

Lattice Dynamics and the Nature of Structural Transitions in Organolead Halide Perovskites

R. Comin, M. Crawford, A. Said, N. Herron, W. Guise, X. Wang, P. S. Whiteld, A. Jain, X. Gong, A. McGaughey, E. H. Sargent

Physical Review B, 9 (94), 094301 (2016)  [HTML] 


Quantum-dot-in-perovskite Solids

Z. Ning*, X. Gong*, R. Comin*, G. Walters, F. Fan, O. Voznyy, E. Yassitepe, A. Buin, S. Hoogland and E. H. Sargent

Nature, 523, 324–328 (2015[HTML] |News Coverage: [University of Toronto; Science World Report, IEEE Spectrum, Optics and Photonics, Phy.Org]

Colloidal quantum dot photovoltaics enhanced by perovskite shelling 

Z. Yang, A. Janmohamed, X. Lan, F. P. Garcia de Arquer, O. Voznyy, E. Yassitepe, G. Kim, Z. Ning, X. Gong, R. Comin, E. H. Sargent

Nano Letters, 15 (11), 7539-7543 (2015)  [HTML] 

ACS applied materials & interfaces, 7 (45), 25007-25013 (2015[HTML]