HK
Hong Kong
Hong Kong ranks between 4th and 40th across the 45 technologies, by share of the 10% most cited papers, 2021–2025.
TechnologyRankIts neighbours in the rankingShare of the top 10%, from 2021 to 2025Its institution with the most credit
Perovskite solar cells
4thof 76
1stCN53.9%2ndUS6.5%3rdKR4.6%4thHK4.0%5–6DE3.9%5–6IN3.9%
City University of Hong Kong2.1% of the top 10%
Satellite navigation
4thof 45
1stCN56.1%2ndUS5.5%3rdDE3.9%4thHK3.4%5–6AU2.2%5–6IT2.2%
Hong Kong Polytechnic University3.3% of the top 10%
Inertial navigation
4thof 40
1stCN64.0%2ndUS6.4%3rdCA3.7%4thHK2.9%5–6GB2.3%5–6DE2.2%
Hong Kong Polytechnic University2.5% of the top 10%
Hypersonic flight
4–7tied, of 28
1stCN65.9%4–7IT1.7%4–7KR1.7%4–7HK1.6%4–7DE1.5%8thIR1.3%
Hong Kong Polytechnic University1.2% of the top 10%
Advanced robotics
6thof 54
1stCN31.5%4thGB4.7%5thDE4.5%6thHK3.4%7–8KR3.2%7–8AU3.2%
Chinese University of Hong Kong1.1% of the top 10%
AI chips
7thof 46
1stCN46.2%4–5DE3.3%6thIN2.3%7thHK2.2%8–9CH1.9%8–9GB1.9%
City University of Hong Kong0.6% of the top 10%
Metamaterials
7thof 73
1stCN55.5%4–5AU2.6%6thIN2.5%7thHK2.0%8thGB1.9%9thDE1.7%
City University of Hong Kong0.8% of the top 10%
Large language models
8–9tied, of 96
1stCN27.4%5–6AU2.3%7thIN2.2%8–9HK2.1%8–9IT2.1%10thCA1.7%
Hong Kong Polytechnic University0.6% of the top 10%
Electric batteries
8thof 89
1stCN68.0%6thAU1.9%7thCA1.7%8thHK1.5%9thIN1.3%10thSG0.8%
City University of Hong Kong0.7% of the top 10%
Drones and swarming
9–10tied, of 81
1stCN52.2%6–7SA2.1%8thAU1.9%9–10HK1.8%9–10SG1.8%11thTR1.3%
Hong Kong Polytechnic University0.7% of the top 10%
Advanced chip manufacturing
9–10tied, of 39
1stCN31.8%7–8JP1.7%7–8IR1.6%9–10HK1.3%9–10DE1.3%11–12CH1.0%
City University of Hong Kong0.8% of the top 10%
6G and advanced wireless
9–10tied, of 80
1stCN39.9%7thIN2.5%8thSA2.3%9–10HK2.2%9–10DE2.2%11thSE1.8%
Hong Kong University of Science and Technology0.8% of the top 10%
Wide-bandgap semiconductors
11thof 56
1stCN40.8%9thTW1.7%10thMY1.6%11thHK1.3%12thAU1.0%13–17SA0.9%
Hong Kong University of Science and Technology0.8% of the top 10%
Hydrogen by electrolysis
12thof 83
1stCN53.0%10thSG1.4%11thIT1.3%12thHK1.2%13–16EG0.9%13–16PT0.9%
Hong Kong Polytechnic University0.5% of the top 10%
High-performance computing
11–13tied, of 453.5 papers of credit
1stUS36.3%10thBR2.0%11–13KR1.4%11–13HK1.3%11–13SE1.1%14–21JP1.0%
Hong Kong University of Science and Technology0.7% of the top 10%
Hyperspectral imaging
10–12tied, of 54
1stCN71.4%10–12CA0.9%10–12JP0.8%10–12HK0.8%13–18MO0.6%13–18TR0.6%
University of Hong Kong0.4% of the top 10%
Genome sequencing
10–12tied, of 59
1stUS33.6%10–12ES1.4%10–12BE1.3%10–12HK1.3%13–14IN1.2%13–14JP1.1%
City University of Hong Kong0.5% of the top 10%
Distributed ledgers
11–12tied, of 103
1stCN20.6%10thCA2.2%11–12PK2.1%11–12HK2.0%13thMY2.0%14–15DE1.4%
Hong Kong Polytechnic University0.6% of the top 10%
Quantum sensors
11–13tied, of 48
1stCN22.5%11–13AT1.5%11–13KR1.4%11–13HK1.3%14–16IL1.2%14–16BE1.1%
Chinese University of Hong Kong0.6% of the top 10%
Radar
10–15tied, of 412.3 papers of credit
1stCN77.0%10–15CA0.4%10–15NL0.4%10–15HK0.4%10–15BE0.3%10–15IR0.3%
City University of Hong Kong0.2% of the top 10%
Advanced aircraft engines
13–19tied, of 472.0 papers of credit
1stCN64.6%12thCH0.9%13–19JP0.6%13–19HK0.6%13–19IR0.5%13–19IE0.4%
Hong Kong Polytechnic University0.4% of the top 10%
Space launch
13–17tied, of 180.4 papers of credit
1stCN34.8%10–12BR1.1%13–17PT1.0%13–17HK0.4%13–17TR0.3%13–17GB0.2%
City University of Hong Kong0.4% of the top 10%
Electronic warfare
4–19tied, of 230.5 papers of credit
1stCN81.0%4–19AE0.5%4–19AU0.5%4–19HK0.4%4–19GB0.4%4–19NL0.3%
City University of Hong Kong0.3% of the top 10%
Supercapacitors
16thof 86
1stCN46.3%14–15MY0.8%14–15JP0.8%16thHK0.7%17–18CA0.6%17–18DE0.6%
City University of Hong Kong0.5% of the top 10%
Optical communication
16–19tied, of 54
1stCN38.8%14–15SG1.1%14–15CH1.1%16–19HK1.0%16–19TW0.9%16–19DK0.9%
Chinese University of Hong Kong0.6% of the top 10%
Atomic clocks
17–20tied, of 270.1 papers of credit
1stUS38.7%9–16IT0.4%9–16CZ0.1%17–20HK0.1%17–20TH0.1%17–20PT0.1%
Hong Kong University of Science and Technology0.1% of the top 10%
Autonomous underwater vehicles
14–20tied, of 442.3 papers of credit
1stCN71.7%14–20FR0.6%14–20NO0.6%14–20HK0.6%14–20DK0.6%14–20TR0.5%
City University of Hong Kong0.3% of the top 10%
Advanced composites
15–18tied, of 68
1stCN50.8%15–18SA0.8%15–18PT0.8%15–18HK0.8%15–18BE0.7%19–21IR0.7%
Hong Kong Polytechnic University0.3% of the top 10%
Post-quantum cryptography
18–26tied, of 593.3 papers of credit
1stCN20.4%15–17CA1.3%15–17IQ1.2%18–26HK1.0%18–26AT0.9%18–26GR0.9%
City University of Hong Kong0.5% of the top 10%
Additive manufacturing
17–19tied, of 90
1stCN34.0%15–16PT1.0%17–19AE0.9%17–19HK0.9%17–19SA0.9%20–21MY0.8%
Hong Kong Polytechnic University0.4% of the top 10%
Hydrogen storage and ammonia fuel
17–19tied, of 68
1stCN44.5%14–16DK1.3%17–19CA1.2%17–19HK1.1%17–19NO1.1%20–21FR1.0%
City University of Hong Kong0.7% of the top 10%
Quantum communication
22–26tied, of 572.6 papers of credit
1stCN28.9%22–26BE0.5%22–26SA0.5%22–26HK0.4%22–26HU0.4%22–26PK0.4%
Hong Kong University of Science and Technology0.2% of the top 10%
Gene editing
22–29tied, of 774.3 papers of credit
1stUS32.2%22–29BR0.4%22–29ET0.4%22–29HK0.4%22–29PL0.4%30–35AT0.3%
Chinese University of Hong Kong0.1% of the top 10%
Synthetic biology
25–30tied, of 551.7 papers of credit
1stCN45.7%25–30PL0.4%25–30TR0.3%25–30HK0.3%25–30IL0.3%25–30AE0.3%
Hong Kong University of Science and Technology0.2% of the top 10%
Nuclear fusion
23–30tied, of 500.8 papers of credit
1stUS27.5%23–30MY0.1%23–30RO0.1%23–30HK0.1%23–30TH0.1%31–33SI0.1%
City University of Hong Kong0.1% of the top 10%
New antibiotics and antivirals
29–32tied, of 824.5 papers of credit
1stCN30.3%24–28CH0.6%24–28PK0.6%29–32HK0.6%29–32TH0.5%29–32BE0.5%
Chinese University of Hong Kong0.2% of the top 10%
Critical minerals processing
23–33tied, of 581.9 papers of credit
1stCN43.0%23–33CL0.4%23–33QA0.4%23–33HK0.4%23–33RU0.4%23–33MX0.4%
City University of Hong Kong0.3% of the top 10%
mRNA vaccines and therapeutics
31–37tied, of 701.9 papers of credit
1stUS38.7%31–37BR0.2%31–37IE0.2%31–37HK0.2%31–37MO0.2%31–37HU0.1%
Outside the top 30
City University of Hong Kong0.1% of the top 10%
Nuclear fission power
32–40tied, of 641.1 papers of credit
1stCN43.3%32–40PK0.2%32–40AT0.1%32–40HK0.1%32–40TH0.1%32–40BD0.1%
Outside the top 30
City University of Hong Kong0.1% of the top 10%
Small satellites
24–39tied, of 470.3 papers of credit
1stUS13.7%24–39MY0.4%24–39IS0.4%24–39AT0.3%24–39HK0.2%40thIE0.2%
Outside the top 30
Chinese University of Hong Kong0.2% of the top 10%
Magnets and superconductors
27–39tied, of 580.6 papers of credit
1stCN35.0%27–39TW0.2%27–39BE0.2%27–39SK0.2%27–39HK0.1%40thPT0.1%
Outside the top 30
University of Hong Kong0.1% of the top 10%
Quantum computing
Not ranked
No credit in the top 10%.
Sonar and underwater acoustics
Not ranked
No credit in the top 10%.
Directed energy
Not ranked
No credit in the top 10%.
Cybersecurity
Not ranked
No credit in the top 10%.
Neighbours are the countries ranked just above and below. Ranks are shown as a range where shares are equal to one decimal place. Source: OpenAlex, pulled 18 October 2026. Method
Where Hong Kong is in the top three
PilotEach paper sorted into one sub-area by an AI model reading its title and abstract, then credited as usual. On 200 hand-labelled papers it chose the same sub-area, or a defensible second, 92% of the time. Shown where the sub-area has at least 30 papers in the top 10% and the country at least five papers of credit.
- 2ndUrban, smartphone and low-cost GNSS positioningSatellite navigation, 91 papers; behind China 33.1%17.7%
- 2ndHole-transport layers and self-assembled monolayersPerovskite solar cells, 278 papers; behind China 61.8%6.9%
- 2ndNitrate and nitrite reduction to ammoniaHydrogen storage and ammonia fuel, 131 papers; behind China 77.9%6.9%
- 3rdRedox flow batteriesElectric batteries, 92 papers; behind China 52.9% and United States 12.0%7.8%
- 3rdAerothermodynamics, boundary layers and high-speed flowHypersonic flight, 75 papers; behind China 49.1% and United States 17.4%6.9%
- 3rdAcoustic and elastic metamaterialsMetamaterials, 276 papers; behind China 66.4% and United States 5.3%5.3%
- 3rdTandem solar cells (perovskite-silicon, all-perovskite)Perovskite solar cells, 119 papers; behind China 58.3% and United States 8.0%4.9%
- 3rdPath planning, obstacle avoidance and exploration (single drone)Drones and swarming, 159 papers; behind China 53.4% and United States 5.9%4.1%
- 3rdZinc, magnesium and other aqueous or multivalent batteriesElectric batteries, 1,230 papers; behind China 78.0% and United States 3.1%2.8%