Liqi Zhu

ORCID: 0000-0003-1197-4698
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About
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Research Areas
  • Advanced Semiconductor Detectors and Materials
  • Advanced Optical Sensing Technologies
  • Infrared Target Detection Methodologies
  • Semiconductor Quantum Structures and Devices
  • Thermography and Photoacoustic Techniques
  • Child and Animal Learning Development
  • Advanced X-ray and CT Imaging
  • Ocular and Laser Science Research
  • Language, Discourse, Communication Strategies
  • Language Development and Disorders
  • Psychology of Moral and Emotional Judgment
  • Semiconductor materials and devices
  • Natural Language Processing Techniques
  • Robotics and Automated Systems
  • Innovation Diffusion and Forecasting
  • Cultural Differences and Values
  • Teleoperation and Haptic Systems
  • Radiation Detection and Scintillator Technologies
  • Chalcogenide Semiconductor Thin Films
  • Functional Brain Connectivity Studies
  • IoT-based Smart Home Systems
  • Cognitive Abilities and Testing
  • Neonatal and fetal brain pathology
  • Random lasers and scattering media
  • Ethics in medical practice

Chinese Academy of Sciences
2011-2025

Shanghai Institute of Technical Physics
2020-2025

Czech Academy of Sciences, Institute of Psychology
2011-2023

ShanghaiTech University
2020-2023

University of Chinese Academy of Sciences
2020-2023

Fujian Institute of Research on the Structure of Matter
2022-2023

Institute of Psychology, Chinese Academy of Sciences
2014-2023

Quanzhou Institute of Equipment Manufacturing Haixi Institute
2022

Shanghai Institute of Microsystem and Information Technology
2022

Shanghai Institute of Technology
2021

<title>Abstract</title> Mid-wavelength infrared (MWIR) avalanche photodiodes (APD) are extensively employed in rapid, high-precision detection as well thermal imaging complex context due to their superior sensitivity, fast response, and high gain. However, conventional MWIR APD’s typically requires lowtemperature operation relieve signal-to-noise limitations imposed by dark currents narrow bandgap materials. To address this challenge, we present the high-temperature-operating photodiode with...

10.21203/rs.3.rs-5711150/v1 preprint EN cc-by Research Square (Research Square) 2025-01-10

This study investigated moral judgment in children with high-functioning autism and their cooperation prisoner's dilemma game partners of different moralities. Thirty-eight 6- to 12-year-old autistic (HFA) 31 typically developing (TD) were recruited. Children asked judge story protagonists' morality. After making this correctly, they play the morally nice naughty child a repeated game. Results showed that both HFA TD made correct judgments might even have more rigid criteria for what...

10.1038/srep04314 article EN cc-by-nc-nd Scientific Reports 2014-03-07

In this paper, low frequency noise and dark current correlation is investigated as a function of reverse bias temperature for short-wave infrared (SWIR), mid-wave (MWIR), long-wave (LWIR) HgCdTe homo-junction photodetectors. Modelling current-voltage characteristics shows that the detectors have ohmic-behavior under small bias, thus enabling further analysis 1/f noise-current dependences with empirical square-law relation (SI ∼ I2) at different regions. It found SWIR MWIR devices, total...

10.1364/oe.399565 article EN cc-by Optics Express 2020-06-29

ABSTRACT English-speaking children understand and produce generic expressions in the preschool years, but there are cross-linguistic differences how generics expressed. Three studies examined interpretation of noun phrases three- to seven-year-old child ( N =192) adult speakers =163) Mandarin Chinese. Contrary suggestions by Bloom (1981), Chinese-speaking adults honor a clear distinction between (expressed as bare NPs) other quantified (‘all’/ suo3you3 ‘some’/ you3de ). Furthermore,...

10.1017/s0305000910000735 article EN Journal of Child Language 2011-08-18

Avalanche photodiodes (APDs) can amplify the weak optical signal as well enable higher receiver sensitivity due to internal avalanche gain, but impact ionization process also introduce "excess noise," which limits practically achievable signal-to-noise ratio (or sensitivity) and gain-bandwidth product. Hg <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$_{{1} -{x}}$ </tex-math></inline-formula> CdxTe...

10.1109/ted.2023.3261820 article EN IEEE Transactions on Electron Devices 2023-03-31

Research based on naturalistic and checklist methods has revealed differences between English Chinese monolingual children in their trajectories of learning nouns verbs. However, studies controlled laboratory designs (e.g., Imai et al., 2008) have yielded a more mixed picture. Guided by multidimensional view word (in which different mechanisms are weighted recruited to extents over development), we examined English- Mandarin-learning infants' (n = 128) ability map novel labels unfamiliar...

10.1037/a0024049 article EN Developmental Psychology 2011-01-01

Low-frequency noise spectroscopy (LFNS) is an effective tool to study the trap properties in infrared photodetectors which may cause limitations of dark current, noise, and quantum efficiency as well. In this article, levels HgCdTe detectors with different Cd compositions are investigated LFNS. The defect within bandgap have been identified. addition, states activation energy above material also found for Hg-vacancy doped mid-wavelength long-wavelength due resonant located conduction band...

10.1109/ted.2019.2960281 article EN IEEE Transactions on Electron Devices 2020-01-09

In this work, an <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0.53</sub> Ga xmlns:xlink="http://www.w3.org/1999/xlink">0.47</sub> As/GaAs xmlns:xlink="http://www.w3.org/1999/xlink">0.5</sub> Sb type-II superlattice(T2SL) based broadband photodetector with optical spectrum response ranging from 250 nm to 2400 is demonstrated. The shows a low dark current density of <inline-formula xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math...

10.1109/led.2022.3162246 article EN IEEE Electron Device Letters 2022-03-25

This paper presents the characteristics of HgCdTe mid-wavelength infrared (MWIR) electron-initiated avalanche photodiodes (e-APDs) as a function temperature under different biases. The devices show low dark current density order <inline-formula><tex-math notation="LaTeX">${10^{ - 7}} \text{A/cm}^2$</tex-math></inline-formula> at 80 K when reverse bias voltage is below 4 V, with an exponential gain above 100 &#x2212; 8 V. Low excess noise factor around 1.2 also demonstrated for K. and...

10.1109/jstqe.2021.3121273 article EN IEEE Journal of Selected Topics in Quantum Electronics 2021-10-20

In this paper, a novelty bandgap gradient multilayer heterojunction (BGMH) HgCdTe long-wavelength infrared detectors (LWIR) to provide low dark current is designed and prototyped. The fabricated photodetector comprised of wide-bandgap p-type cap layer intrinsic region optimize the tunneling surface current, also with responsed narrow n-type bottom layer. BGMH LWIR detector, 100% cutoff wavelength 14 μm, realizes density 5.7×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...

10.1109/led.2024.3381119 article EN IEEE Electron Device Letters 2024-03-25

ABSTRACT During the past decade, cognitive neuroscience has been calling for population diversity to address challenge of validity and generalizability, ushering in a new era neuroscience. The developing Chinese Color Nest Project (devCCNP, 2013-2022), ten-year pilot stage lifespan CCNP (2013-2032), is an ongoing project focusing on brain-mind development. aims create share large-scale, longitudinal multimodal dataset typically children adolescents (ages 6.0–17.9 at enrolment) population....

10.1101/2023.04.07.535977 preprint EN cc-by-nc bioRxiv (Cold Spring Harbor Laboratory) 2023-04-08

In this paper, a vertical stacked near-infrared (NIR) and extended short wavelength infrared (eSWIR) dual-band detector based on InGaAs <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0.53</sub> Ga xmlns:xlink="http://www.w3.org/1999/xlink">0.47</sub> As/GaAs xmlns:xlink="http://www.w3.org/1999/xlink">0.5</sub> Sb type-II superlattice (T2SL) is presented. A barrier layer of AlAs xmlns:xlink="http://www.w3.org/1999/xlink">0.56</sub>...

10.1109/jlt.2022.3171224 article EN Journal of Lightwave Technology 2022-04-29

Making inferences in communication is a highly context-dependent endeavor. Previous research found cultural variations for context-sensitivity as well comprehension. However, the relative impact of culture and on comprehension has not been investigated so far. The current study aimed at investigating this interplay tested 4- 6-year-old children from Germany ( n = 132) China 129). Context-sensitivity was measured with an adapted version Ebbinghaus illusion. In task, have to discriminate size...

10.1177/00220221221104952 article EN Journal of Cross-Cultural Psychology 2022-06-11

Compared with a mobile robot follows behind the target person, side-by-side following is more common, relaxed, and friendly human-robot interaction (HRI). However, when person suddenly turns, struggles to achieve an adaptable adjustment of position posture. To address this problem, recursive least square parameter adaptation algorithm (RLS-PAA) proposed using Ultra-Wideband (UWB) system. evaluate motion control performance following, RLS-P AA tested on MATLAB simulation platform. When safe...

10.1109/robio55434.2022.10011938 article EN 2021 IEEE International Conference on Robotics and Biomimetics (ROBIO) 2022-12-05

High-speed avalanche photodiodes (APDs) have attracted great interest for their potential applications in weak signal detection and free-space communication. In this article, the bandwidth characteristics of mid-wavelength infrared (MWIR) Hg <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0.7</sub> Cd xmlns:xlink="http://www.w3.org/1999/xlink">0.3</sub> Te electron-APDs (e-APDs) are investigated by Monte Carlo method. The simulated gain, excess...

10.1109/ted.2022.3177159 article EN IEEE Transactions on Electron Devices 2022-06-01

Abstract This paper mainly investigates the area-dependent gain and noise characteristics of mid-wavelength infrared (MWIR) Hg 0.7 Cd 0.3 Te planarelectron avalanche photodiodes (e-APDs) operated at 80 K. The 10- μ m-radius diode exhibits low dark current in magnitude 10 –13 A below −5.5 V, high up to 1270 −10 excess factor between 1 1.2. optimal performances are compromised by tunneling current, which should be further suppressed. Studies on variable-area diodes show that larger have a...

10.1088/2053-1591/ac84c9 article EN cc-by Materials Research Express 2022-07-27
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