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Positions Available:

Areas of current recruiting interest:

    - flexible / stretchable electronics

    - hydrogels, polyelectrolytes, semiconducting polymers, polymer composites

    - sensors: mechano, chemical, biological

    - actuators: soft/gel actuators

    - energy: supercapacitors, aqueous batteries

The Atoms-to-Systems Lab focuses on the synthesis, integration, and application of novel soft ion-electronic materials to sensing and energy fields. Our projects involve synergizing materials chemistry, electrochemistry, semiconductor physics, device fabrication, and (in selected cases) biomedical engineering.

Our group focuses on training tomorrow's researchers, therefore emphasizes technical competence and hard work. We have a harmonious and collaborative culture among members. Supervision is primarily in English and also has substantial Western influence in terms of style.

Postdoc Fellow / Associate Research Scientist:


- (salary highly competitive) (multiple projects begin in 2022 and 2023)

- Requires a PhD in Materials, Chemistry, Electrical Engineering, or related disciplines

- Application package should be sent to <derekho{at}>, including: 

1) Cover letter

2) Research statement

3) CV, w/ publication list

4) PDFs of up to 5 publications

Hong Kong ITC Postdoctoral Hub:

For postdoc applicants eligible to be hired under the Hong Kong ITC Postdoctoral Hub (graduated from top 100 institutions from qualified disciplines or from a Hong Kong university), salary can reach $32000/month. If this applies to you, please state clearly in cover letter/email.

PhD Student:

CityU Minimum Requirement:

(I) Mandatory: bachelor’s degree with at least from Project 211 university

     - note: passing minimum requirements does not guarantee admission

(II) Mandatory: English test score (minimum TOFEL = 79, or IELTS = 6.5, or CET6 = 490) [test taken within 2 years]

     - e.g. 1: IELTS 8.5/9, taken more than 2 years ago. Fail.

     - e.g. 2: CET6 491, taken within 2 years. Pass.

Please send the following info to <derekho{at}>. Complete information will receive quicker reply.

1) Transcript(s) of all (including incomplete) degrees. State mark out of 100.

2) English test score (explicitly state test taken within 2 years)

3) CV with publication list

4) Publication samples, 1st- or 2nd-author, in PDF format


CityU admission deadline is in early December for admission to the following year's fall semester. Different tracks:

A. Fast Track: available year round, for applicants with demonstrated excellent research

B. HKPFS: observe SGS deadline, usually December 1, but submission by mid November is highly recommended. All applicants who pass IELTS should apply through the HKPFS route, which is automatically considered for the normal PhD admission process as well. 

C. Main Round: observe SGS deadline, submission by mid November is highly recommended (and will likely maximize your chance).

Financial Support for Graduate Students:

CityU studentships offer a monthly stipend of HK ~$18,500/month (US ~$30,000/yr) to all successful candidates. All graduate students are admitted through the School of Graduate Studies (SGS) ( For admission requirements, please consult the SGS website and SGS Admission Handbook. Admission success is highly based on GPA and publication records.

Hong Kong PhD Fellowship Scheme (HKPFS):

Strong applicants are strongly encouraged to apply for the prestigious Hong Kong PhD fellowship. The Fellowship provides a annual stipend of HK $325,200 (~US $42,000/yr) and a conference travel allowance of HK $13,600 (~ US$1,800) per year for a period of up to three years (2022 funding level).

Research Assistant (currently no openings):

- Requires a bachelor’s degree, with plan to continue PhD study at CityU afterwards (please state in email)

- Please email GPA / CV / English score / publication samples to <derekho{at}>.

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