Article
Automation & Control Systems
Jeongpyo Park, Min-Gyu Jeong, Jin-Gyu Kang, Changsik Yoo
Summary: This article presents a buck-boost converter that harvests energy from a solar cell and performs dc-dc conversion with only one inductor. It operates in battery-charging mode if harvested energy exceeds system load, and in battery-assisted mode if system load surpasses harvested energy. The optimal control scheme identified is the integral charging scheme for maximizing power efficiency.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
S. M. Yang, Y. J. Huang
Summary: A semiconductor thermoelectric energy generator with a stacked thermocouple design is developed to achieve high harvesting performance. By increasing the thermocouple density and using different material layers, the generator is able to compete with BiTe-based generators.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Analytical
Yi-Xuan Shen, Yao-Chuan Tsai, Chi-Yuan Lee, Chyan-Chyi Wu, Ching-Liang Dai
Summary: This study develops a TEMH chip using a commercial CMOS process, which monitors temperature with sensors and increases the temperature difference of thermocouples through suspended structure and cooling sheets to enhance the output voltage and power.
Article
Chemistry, Physical
Haitao Li, Huan Wang, Xiangming Li, Jiangchao Huang, Xuan Li, Siew Kheng Boong, Hiang Kwee Lee, Jie Han, Rong Guo
Summary: Pyroelectric technology can convert waste heat into electricity. We have developed an efficient sunlight-triggered pyroelectric nanogenerator by combining Au@rGO-PEI and PVDF layers, achieving high power output and integration with wind energy for concurrent electricity harvesting.
Article
Green & Sustainable Science & Technology
Ali Raza, Usman Qumar, Arslan Ahmed Rafi, Muhammad Ikram
Summary: This article provides a detailed review of the production methods and performance of MXene photocatalysts, as well as their mixed applications with traditional photocatalysts and stability. MXenes, as co-catalysts, show great potential in environmental photocatalysis.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Chemistry, Analytical
Shaohua Zhou, Cheng Yang, Jian Wang
Summary: A power amplifier's specification change directly affects the performance of a wireless communication system and may lead to system failure. This study used a support vector machine (SVM) to model the temperature characteristics of the power amplifier and found that only 75% of the experimental data is needed to meet the model's requirements. As a result, the number of measurement points in the experiment can be reduced by 25%, saving measurement cost and time.
Article
Engineering, Electrical & Electronic
Po-Hsuan Lai, Lien-Sing Tseng, Chia-Min Yang, Michael S. -C. Lu
Summary: The charge carried by immobilized biomolecules on the electrode surface leads to a change in electrode capacitance, making capacitive sensors suitable for label-free real-time biodetection. Compared to other types of biosensing devices, capacitive sensors are easier to design and implement. This study presents a 16x16 capacitive sensor array fabricated using a 0.35-μm CMOS process, which benefits from reduced parasitic capacitance for improved signal-to-noise ratio. The sensor electrodes have an area of 30x30 μm² and exhibit capacitance values of 57.3 fF in air. The pH measurement shows a capacitive sensitivity of 151 fF/pH, while DNA measurements exhibit a capacitive sensitivity of 94 fF/log(10)[DNA] in the range of 10 aM to 100 pM at a clock frequency of 2 MHz.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Olli E. E. Setala, Martin J. J. Prest, Konstantin D. D. Stefanov, Douglas Jordan, Matthew R. R. Soman, Ville Vahanissi, Hele Savin
Summary: By replacing traditional methods with surface nanoengineering, the performance of commercial backside illuminated CMOS image sensors can be significantly improved in terms of spectral range, photosensitivity, and dark current reduction.
Article
Chemistry, Multidisciplinary
Fangwei Wang, Yan Liu, Thanh Xuan Hoang, Hong-Son Chu, Soo-Jin Chua, Christian A. Nijhuis
Summary: Researchers have successfully demonstrated electronically driven, CMOS-compatible electronic-plasmonic transducers with higher transduction efficiency. This study establishes a new platform to convert electronic signals to plasmonic signals via electrical means, paving the way towards CMOS-compatible plasmonic components.
Article
Engineering, Electrical & Electronic
Wei Xu, Xiaoyi Wang, Xiaojin Zhao, Yatao Yang, Yi-Kuen Lee
Summary: The article introduces four micro thermal conductivity measurement (mu TCM) devices for silicon oxide, polysilicon, and aluminum thin films using CMOS MEMS technology, and proposes a linear thermal resistance model which was validated by computational fluid dynamics study. The measured thermal conductivities of thin-film materials were significantly smaller than the available bulk values, highlighting the importance of determining thermal conductivities for thin-film materials in the CMOS MEMS process.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Chemistry, Multidisciplinary
Shengdu Yang, Yang Zhang, Junwei Bai, Yushun He, Xiaohai Zhao, Junhua Zhang
Summary: This study presents a tailored photothermal composite nanodroplet with a dual-interface structure to achieve strong absorption of solar light over a wide range of angles, low heat loss, and excellent structural reliability. A three-dimensional stepped micropyramid grating array framework is designed to improve light coupling, and flexible 3D-structured absorbers are successfully constructed. The developed micrograting absorber exhibits high selective broadband light absorption, superior photothermal conversion effect, and mechanical properties. Additionally, a high-efficiency and steady solar-driven thermoelectric generator system is demonstrated.
Article
Multidisciplinary Sciences
Sanket Patel, Shobhit K. Patel, Abdulkarem H. M. Almawgani, Ammar Armghan, Ahmad Alzahrani, Sofyan A. Taya
Summary: This research proposes a design of a super-wideband solar energy absorber (SWBSEA) with a graphene thin film substrate coating. The design achieves high absorption and features wide angle of incidence and polarization insensitivity, making it suitable for solar cell, heating, drying, and photovoltaic applications.
ADVANCED THEORY AND SIMULATIONS
(2023)
Review
Engineering, Electrical & Electronic
Atal Anudeep Singh Gill, Sara S. Ghoreishizadeh
Summary: The monolithic integration of electrochemical sensors with instrumentation electronics on semiconductor technology is a promising approach to achieve sensor scalability, miniaturization, and increased signal-to-noise ratio. This review focuses on the postprocess fabrication techniques for the addition of nanomaterials to the electrode surface, and summarizes several CMOS-compatible techniques for the deposition of nanomaterials. The advantages and disadvantages of these deposition methods are also discussed in this review.
IEEE SENSORS JOURNAL
(2023)
Article
Neurosciences
Violetta Sessi, Bergoi Ibarlucea, Florent Seichepine, Stephanie Klinghammer, Imad Ibrahim, Andre Heinzig, Nadine Szabo, Thomas Mikolajick, Andreas Hierlemann, Urs Frey, Walter M. Weber, Larysa Baraban, Gianaurelio Cuniberti
Summary: This study introduces a hybrid integration technique that combines bottom-up silicon-nanowire Schottky-junction FETs with complementary-metal-oxide-semiconductor (CMOS) readout and amplification electronics to establish a stable biosensing platform. It enables selective detection of biomarkers at high dilution levels and shows great potential for various applications.
FRONTIERS IN NEUROSCIENCE
(2022)
Article
Multidisciplinary Sciences
Jackson Lord, Ashley Thomas, Neil Treat, Matthew Forkin, Robert Bain, Pierre Dulac, Cyrus H. Behroozi, Tilek Mamutov, Jillia Fongheiser, Nicole Kobilansky, Shane Washburn, Claudia Truesdell, Clare Lee, Philipp H. Schmaelzle
Summary: The potential of atmospheric water harvesting using solar energy to provide safely managed drinking water for a billion people globally is significant, especially in tropical regions. Research indicates that with continuous technological development and the introduction of new sorbent materials, these targets could be achieved.
