Implantable photoelectronic charging (I-PEC) for medical implants

Wang, Kai; Karan, Sumanta Kumar; Sanghadasa, Mohan; Wu, Congcong; Priya, Shashank

doi:10.1016/j.enrev.2022.100006

Cited by 8 publications

(9 citation statements)

References 41 publications

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“…Finally, Ag electrodes were deposited during vacuum thermal evaporation for 120 nm. The measured PSC active area is 0.04 cm 2 .…”

Section: Methodsmentioning

confidence: 99%

“…As representative third generation high-efficiency thin-film solar cells, perovskite solar cells (PSCs) are well-known for their cost-effectiveness and high-power conversion efficiency (PCE). − Since the first report on PSCs in 2009, the PCE has improved from 3.8 to a certified 25.7%, almost matching the PCE of mainstream silicon solar cells and reaching 32.5% for perovskite/silicon tandem cells. − Notably, PSCs with an inverted structure ( p–i–n ) have attracted more attention than those with a conventional structure ( n–i–p ) because of their simpler fabrication process, stable operation, insignificant hysteresis, and easy preparation in case of tandem PSCs with conventional silicon solar cells . However, the current immature process, such as the single crystallization method without precise regulation, inevitably results in numerous crystal defects in the perovskite polycrystalline interface, including deep-energy-level defects and shallow-energy-level defects. − Deep-energy-level defects can cause irreversible damage to the cells and severely compromise the photovoltaic capability of the PSCs. , Shallow-energy-level defects are responsible for detrimental energy band bending, photocurrent hysteresis, and interfacial reactions through ion migration and accumulation at the interface, which induce crystal degradation and phase transition as well as intensify carrier nonradiative recombination loss .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Stable and Efficient Inverted Perovskite Solar Cells Enabled by Structural Design of Lewis Base Molecules

Zhang,

Feng,

Tang

et al. 2023

ACS Appl. Energy Mater.

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Lewis base molecules are capable of binding undercoordinated Pb 2+ at the interface and grain boundaries, effectively modifying the interfacial defects and thus improving the durability of metal halide perovskite solar cells (PSCs). In this study, we independently designed two innovative materials with strong binding energy as Lewis base molecules: 2-(1-methylpiperidin-1-ium-1yl)-1-phenylethanone (M1) and 2-(4-methylmorpholin-4-ium-4-yl)-1-phenylethanone (M2). Using density functional theory (DFT) calculations, we found that the electron-donating ability of the C�O bond in M2 is stronger than that in M1. We experimentally determined that the M2 passivated MAPb(I 0.97 Br 0.03 ) 3 thin films exhibit excellent morphology with a more uniform surface and improved crystallinity, thus suppressing nonradiative recombination. The PSC based on M2-passivated MAPb(I 0.97 Br 0.03 ) 3 thin film showed the maximum power conversion efficiency of 21.80%, which is much higher than that of PSCs based on M1-passivated MAPb(I 0.97 Br 0.03 ) 3 thin film and MAPb(I 0.97 Br 0.03 ) 3 thin film, while exhibiting a high fill factor (FF) of 82.53% and long-term stability in the air atmosphere (45% RH).

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“…Finally, Ag electrodes were deposited during vacuum thermal evaporation for 120 nm. The measured PSC active area is 0.04 cm 2 .…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Stable and Efficient Inverted Perovskite Solar Cells Enabled by Structural Design of Lewis Base Molecules

Zhang,

Feng,

Tang

et al. 2023

ACS Appl. Energy Mater.

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“…However, for the bandpass filter shown in Fig. 1, the center frequency (ω 0 ) is affected by changes in temperature, as depicted in equation (6). Additionally, the filter exhibits relatively high total harmonic distortion (THD).…”

Section: Circuit Description and Ideal Analysismentioning

confidence: 99%

“…Based on the issues mentioned above, the researcher has improved and developed the bandpass filter shown in Fig. 1, by using the Caprio technique [6,15]. Fig.…”

Section: Circuit Description and Ideal Analysismentioning

confidence: 99%

“…In a similar vein, [3] introduced a novel dual-mode bandpass filter, harnessing the characteristics of a microstrip open-loop resonator to achieve a broad stopband. Additionally, [4,5] focused on the development of a dual-port dual-frequency integration antenna, while [6] addressed the specific needs of implantable defibrillators and defibrillators by designing bandpass filters for NIR charging. The 10.7-MHz bandpass filter, which originated from the intermediate frequency stage of a superheterodyne receiver and is commonly used in FM radio and television systems, has undergone extensive research [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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The development of a 10.7-MHz fully balanced current-tunable bandpass filter with Caprio technique

Lertkonsarn,

Khwunnak,

Angkawisittpan

et al. 2023

Eureka: PE

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Bandpass filters are integral in modern communication systems for selecting specific frequency ranges to ensure interference-free signal transmission and reception. This paper explores various bandpass filter designs, including those using active inductors, transmission-line unit-cells, microstrip open-loop resonators, and dual-port dual-frequency integration antennas. The focus is on the 10.7-MHz bandpass filter, widely used in FM radio and television systems. The study evaluates current-controlled and balanced designs, analyzing their performance, advantages, and drawbacks. Unique trade-offs in terms of linearity, distortion, temperature sensitivity, and component variations are discussed. Additionally, advancements in filter technology and diverse design options are presented. The paper introduces a novel current-balanced, frequency-adjusted bandpass filter to address odd-order noise issues. This filter aims to achieve high linearity, harmonic distortion attenuation, and the elimination of even-order harmonics. Through synthesis, analysis, simulation, and comparison with traditional filters, the proposed design enhances signal quality and efficiency. The fully-balanced current-tunable bandpass filter with the Caprio technique at 10.7 MHz is developed, exhibiting symmetrical characteristics with lower total harmonic distortion. The circuit’s structure is simple and adaptable for integration, validated through consistent simulation results. The study concludes by emphasizing the constant sensitivity of transistor differential amplifier circuits to the center frequency and the linear relationship between center frequency and adjustable bias current. The suggested transistor and capacitor selection criteria contribute to optimizing the circuit’s performance, aligning with the Caprio technique’s recommendations. Overall, this research presents a promising solution for achieving high-quality signal transmission in contemporary communication systems

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Diagnosis of Neurological Disease Using Bioinspired Algorithms

Ul Haq

2024

Bio‐Inspired Optimization for Medical Data Mining

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Implantable photoelectronic charging (I-PEC) for medical implants

Cited by 8 publications

References 41 publications

Stable and Efficient Inverted Perovskite Solar Cells Enabled by Structural Design of Lewis Base Molecules

Stable and Efficient Inverted Perovskite Solar Cells Enabled by Structural Design of Lewis Base Molecules

The development of a 10.7-MHz fully balanced current-tunable bandpass filter with Caprio technique

Diagnosis of Neurological Disease Using Bioinspired Algorithms

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