Electronic Engineering Department, The Chinese University of Hong Kong - Prof ZHAO, Ni 趙鈮


Professor & Department Vice-Chair (Graduate)
B.Eng. (Tsinghua University), M.S. (McMaster University), Ph.D. (University of Cambridge)
homepage Rm 230, Ho Sin Hang Engineering Building phone Tel: +852 3943 4347 This email address is being protected from spambots. You need JavaScript enabled to view it.

Research Interests:

Optoelectronic, electronic and electrochemical devices based on organic and nanostructured materials; sensors and biomedical devices; spectroscopic characterizations of the physical processes in nanostructured thin films, structures, and devices


hyperlink http://www.ee.cuhk.edu.hk/~nzhao/



Resume of Career

Ni Zhao received her Ph.D degree in Physics from the University of Cambridge (UK) in 2008. From 2008-2010 she worked as a postdoctoral research fellow at the Massachusetts Institute of Technology (USA). Prof. Zhao joined the Department of Electronic Engineering at the Chinese University of Hong Kong (CUHK) in December 2010 and is now a full professor. Prof. Zhao is a Fellow of Royal Society of Chemistry (RSC) and a member of The Hong Kong Young Academy of Sciences (YASHK) and Materials Research Society (MRS). He currently serves as the Associate Editor of Science Advances and Journal of Materials Chemistry C.

Current Research Interests

Optoelectronic, electronic and electrochemical devices based on organic and nanostructured materials; spectroscopic characterization of the physical processes in nanostructured thin films, structures, and devices

Highlights of Recent Achievements

  • Prof. Zhao’s team has achieved the first epidermal (i.e., skin-like) optoelectronic sensor for low-power and continuous tracking of arterial blood pressure (BP).
  • Prof. Zhao’s team have developed the material solutions to address the processability and operational stability issues of perovskite solar cells and LEDs. Their pioneering work in composition tuning, precursor engineering and surface passivation has led to multiple “Highly Cited Papers” rated by Web of Science.
  • Prof. Zhao’s team has invented a multi-wavelength photoplethysmogram (MWPPG) model, which led to a new record in cuffless BP measurements for its lowest measurement error (< 2.5 mm Hg) and enabled simultaneous acquisition of heart rate, BP, respiratory rate and blood oxygen level with just one integrated optical module.
  • Prof. Zhao received Excellent Young Scientists Fund (优青) in 2020
  • Prof. Zhao was ranked global Highly Cited Researchers in 2018

Taught Courses

  • Basic Electronics
  • Flexible Electronics and Solar Cell Technology
  • Green Electronic Gadgets
  • Physics and Technology of Semiconductor Devices
  • Engineering Physics
  • Solar Energy and Photovoltaic Technology

Honors and Awards

  • Outstanding Fellow of the Faculty of Engineering, CUHK, August 2021
  • Excellent Young Scientists Fund, China, September 2020
  • Research Excellence Award, Chinese University of Hong Kong, July 2019
  • Highly Cited Researchers, Clarivate Analytics (Web of Science), November 2018
  • CSJ Lectureship Award, Chemical Society of Japan, March 2018

External Service in Recent 3 Years

  • Associate Editor, Science Advances (AAAS), 09/2019 to present
  • Associate Editor, Journal of Materials Chemistry C (RSC), 02/2019 to present
  • Editorial Advisory Board Member, Advanced Materials (Wiley), 09/2018 to present
  • Editorial Advisory Board Member, Advanced Materials Technologies (Wiley), 11/2015 to present

Publications for the Past 3 Years

  1. Chen, J.; Zhang, J.; Hu, J.; Luo, N.; Sun, F.; Venkatesan, H.; Zhao, N.; Zhang, YT. (2022) Ultrafast‐Response/Recovery Flexible Piezoresistive Sensors with DNA‐Like Double Helix Yarns for Epidermal Pulse Monitoring. Advanced Materials 34(2), 2104313

  2. Chen, Y.; Xie, B.; Long, J.; Kuang, Y.; Chen, X.; Hou, M.; Gao, J.; …; Zhao, N.* (2021) Interfacial Laser‐Induced Graphene Enabling High‐Performance Liquid−Solid Triboelectric NanogeneratorAdvanced Materials 33 (44), 2104290

  3. Chen, M.; Lu, L.; Yu, H.; Li, C.; Zhao, N.* (2021) Integration of Colloidal Quantum Dots with Photonic Structures for Optoelectronic and Optical Devices. Advanced Science 8 (18), 2101560
  4. Jia, Y.; Yu, H.; Zhou, Y.; Li, N.; Guo, Y.; Xie, F.; Qin, Z.; Lu, X.; Zhao, N.* (2021) Excess Ion-Induced Efficiency Roll-Off in High-Efficiency Perovskite Light-Emitting Diodes. ACS Applied Materials & Interfaces 13 (24) 28546-28554
  5. Guo, Y.; Apergi, S.; Li, N.; Chen, M.; Yin, C.; Yuan, Z.; Gao, F.; Xie, F.; Brocks, G.; Tao, S.*; Zhao N.* (2021) Phenylalkylammonium passivation enables perovskite light emitting diodes with record high-radiance operational lifetime: the chain length matters. Nature communications 12 (1), 1-8.
  6. Yu, H.; Li, N.; Zhao N.* (2021) How Far Are We from Achieving SelfPowered Flexible Health Monitoring Systems: An Energy Perspective. Advanced Energy Materials 11 (9), 2002646.
  7. Liu, J.; Yan, B.; Chen, S.-C.; Zhang, Y.; Sodini, C.; Zhao N.* (2021) Non-Invasive Capillary Blood Pressure Measurement Enabling Early Detection and Classification of Venous Congestion. IEEE Journal of Biomedical and Health Informatics. DOI: 10.1109/JBHI.2021.3055760
  8. Huang, Y.; You, X.; Tang, Z.; Tong, K. Y.; Guo, P.; Zhao N.* (2021)Interface Engineering of Flexible Piezoresistive Sensors via NearField Electrospinning Processed Spacer Layers. Small Methods, 5 (4), 2000842.
  9. Zhou, S.; Zhou, G.; Li, Y.; Xu, X.; Hsu, Y.-J.; Xu, J.; Zhao, N.; Lu, X.* (2020) Understanding charge transport in all-inorganic halide perovskite nanocrystal thin-film field effect transistors. ACS Energy Letters 5 (8), 2614-2623.
  10. Xiao, Y.; Ma, R.; Zhou, G.; Zhu, J.; Lau, T.-K.; Dai, S.; Rech, J. J.; Zhao, N.; You, W.; Yan, H.*(2020) Ternary Blending Driven Molecular Reorientation of Non-Fullerene Acceptor IDIC with Backbone Order. ACS Applied Energy Materials 3 (11), 10814-10822.
  11. Xiang, H.; Zhou, L.; Lin, H.-J.; Hu, Z.; Zhao, N.; Chen, Z.* (2020) Upconversion nanoparticles extending the spectral sensitivity of silicon photodetectors to λ= 1.5 μm. Nanotechnology 2020, 31 (49), 495201.
  12. Tian, Z.; Zhao, Y.; Wang, S.; Zhou, G.; Zhao N.*; Wong, C.-P.* (2020) A highly stretchable and conductive composite based on an emulsion-templated silver nanowire aerogel. Journal of Materials Chemistry A, 8 (4), 1724-1730.
  13. Sergeev, A.; Pavlov, D.; Kuchmizhak, A.; Lapine, M.; Yiu, W.; Dong, Y.; Ke, N.; Juodkazis, S.; Zhao, N.; Kershaw, S., Rogach, A.* (2020) Tailoring spontaneous infrared emission of HgTe quantum dots with laser-printed plasmonic arrays. Light: Science & Applications 9 (1), 1-10.
  14. Niu, M.; Luo, G.; Shu, X.; Qu, F.; Zhou, S.; Ho, Y.-P.; Zhao, N.; Zhou, R.* (2020) Portable quantitative phase microscope for material metrology and biological imaging. Photonics Research, 8 (7), 1253-1259.
  15. Liu, J.; Qiu, S.; Luo, N.; Lau, S.-K.; Yu, H.; Kwok, T.; Zhang, Y.; Zhao N.* (2020) PCA-based Multi-wavelength Photoplethysmography Algorithm for Cuffless Blood Pressure Measurement on Elderly Subjects. IEEE Journal of Biomedical and Health Informatics. 25(3), 663-673.
  16. Li, N.; Song, L.; Jia, Y.; Dong, Y.; Xie, F.; Wang, L.; Tao, S.; Zhao N.* (2020) Stabilizing Perovskite LightEmitting Diodes by Incorporation of Binary Alkali Cations. Advanced Materials, 32 (17), 1907786.
  17. Kim, J.; Ouyang, D.; Lu, H.; Ye, F.; Guo, Y.; Zhao, N.; Choy, W. C.* (2020) Organic Photovoltaics: High Performance Flexible Transparent Electrode via OneStep Multifunctional Treatment for Ag Nanonetwork Composites SemiEmbedded in LowTemperatureProcessed Substrate for Highly Performed Organic Photovoltaics. Advanced Energy Materials, 10 (15), 2070066.
  18. Jia, Y. H.; Neutzner, S.; Zhou, Y.; Yang, M.; Tapia, J. M. F.; Li, N.; Yu, H.; Cao, J.; Wang, J. P.; Petrozza, A.; Zhao N.* (2020) Role of Excess FAI in Formation of HighEfficiency FAPbI3Based LightEmitting Diodes. Advanced Functional Materials, 30 (1), 1906875.
  19. Huang, Y.; You, X.; Fan, X.; Wong, C. P.; Guo, P.; Zhao N.* (2020) NearField Electrospinning Enabled Highly Sensitive and Anisotropic Strain Sensors. Advanced Materials Technologies, 5 (11), 2000550.
  20. Guo, Y.; Jia, Y.; Li, N.; Chen, M.; Hu, S.; Liu, C.; Zhao N.* (2020) Degradation Mechanism of Perovskite LightEmitting Diodes: An In Situ Investigation via Electroabsorption Spectroscopy and Device Modelling. Advanced Functional Materials, 30 (19), 1910464.
  21. Duan, Z.; Ning, J.; Chen, M.; Xiong, Y.; Yang, W.; Xiao, F.; Kershaw, S. V.; Zhao, N.; Xiao, S.; Rogach, A. L.* (2020) Broad-Band Photodetectors Based on Copper Indium Diselenide Quantum Dots in a Methylammonium Lead Iodide Perovskite Matrix. ACS Applied Materials & Interfaces, 12 (31), 35201-35210.
  22. Dong, Y.; Chen, M.; Yiu, W. K.; Zhu, Q.; Zhou, G.; Kershaw, S. V.; Ke, N.; Wong, C. P.; Rogach, A. L.; Zhao N.* (2020) Solution Processed Hybrid Polymer: HgTe Quantum Dot Phototransistor with High Sensitivity and Fast Infrared Response up to 2400 nm at Room Temperature. Advanced Science, 7 (12), 2000068.
  23. Cao, J.; Jiang, J.; Li, N.; Dong, Y.; Jia, Y.; Tao, S.; Zhao N.* (2020) Alkali-cation-enhanced benzylammonium passivation for efficient and stable perovskite solar cells fabricated through sequential deposition. Journal of Materials Chemistry A, 8 (37), 19357-19366.
  24. Bao, C.; Xu, W.; Yang, J.; Bai, S.; Teng, P.; Yang, Y.; Wang, J.; Zhao, N.; Zhang, W.; Huang, W.; Gao, F.* Bidirectional optical signal transmission between two identical devices using perovskite diodes. Nature electronics, 3 (3), 156-164.
  25. Zhu, B.; Chen, M.; Zhu, Q.; Zhou, G.; Abdelazim, N. M.; Zhou, W.; Kershaw, S. V.; Rogach, A. L.; Zhao N.*; Tsang, H. K.* (2019) Integrated plasmonic infrared photodetector based on colloidal HgTe quantum dots. Advanced Materials Technologies, 4 (10), 1900354.
  26. Zhou, Y.; Xue, H.; Jia, Y. H.; Brocks, G.; Tao, S.; Zhao N.* (2019) Enhanced Incorporation of Guanidinium in FormamidiniumBased Perovskites for Efficient and Stable Photovoltaics: The Role of Cs and Br. Advanced Functional Materials , 29 (48), 1905739.
  27. Liu, B.; Huang, Y.; Kam, K. W.; Cheung, W.-F.; Zhao, N.; Zheng, B.* (2019) Functionalized Graphene-based Chemiresistive Electronic Nose for Discrimination of Disease-Related Volatile Organic Compounds. Biosensors and Bioelectronics, 1, 100016.
  28. Wen C., Feng F., Ren M., Somekh MG, Zhao N., Chen S.-C.* (2019), Spatially-resolved random-access pump-probe microscopy based on binary holography, Optics Letters, 44 (16), 4083-4086.
  29. Liu J., Sodini C., Ou Y., Yan B., Zhang Y., Zhao N.* (2019). Feasibility of Fingertip Oscillometric Blood Pressure Measurement: Model-based Analysis and Experimental Validation, IEEE Journal of Biomedical and Health Informatics, 24 (2), 533-542.
  30. Zhou G., Zhou S., Zhu Q., Zhao N.* (2019). Improving Operational Stability of p‐Type Field‐Effect Transistors by Charge Selective Electrodes: a General Strategy, Advanced Electronic Materials 5 (6), 1900055.
  31. Huang Y., Fan X., Chen S.-C.*, Zhao N.* (2019). Emerging Technologies of Flexible Pressure Sensors: Materials, Modeling, Devices, and Manufacturing, Advanced Functional Materials, 29(12), 1808509.
  32. Chen Y., Zhang C., Li L., Zhou S., Chen X., Gao J., Zhao N.*, Wong C.-P.* (2019). Hybrid Anodic and Metal-Assisted Chemical Etching Method Enabling Fabrication of Silicon Carbide Nanowires, Small, 15(7), 1803898.
  33. Xu J., Chen J., Tao L. Tian Z., Zhao N.*, Wong C.-P.* (2019). Investigation of Na3V2 (PO4) 2O2F as a sodium ion battery cathode material: Influences of morphology and voltage window, Nano Energy 60, 510-519.
  34. Zhou S., Ma Y., Zhou G., Xu X., Qin M., Li Y., Hsu Y.-J., Hu H., Li G., Zhao N., Xu J., Lu X.* (2019). Ag-Doped Halide Perovskite Nanocrystals for Tunable Band Structure and Efficient Charge Transport, ACS Energy Letters, 4(2), 534-541.
  35. Chen Y., Long J., Zhou S., Shi D., Huang Y., Chen X., Gao J., Zhao N.*, Wong C.-P.* (2019). UV Laser‐Induced Polyimide‐to‐Graphene Conversion: Modeling, Fabrication, and Application, Small Methods, 3 (10), 1900208.
  36. Liu J., Yan B., Zhang Y., Ding X.R., Su P., Zhao N.* (2019). Multi-wavelength photoplethysmography enabling continuous blood pressure measurement with compact wearable electronics, IEEE Transactions on Biomedical Engineering, 26(60) 1514 – 1525.