Article
Chemistry, Physical
Elena Fomenko, Igor Altman, Lucija Boskovic, Igor E. Agranovski
Summary: This study investigates nanoparticle formation in a customised glowing wire generator (GWG) and identifies different nucleation regimes under varying gas flow directions and applied voltages. The findings provide important insights for designing multi-wire GWGs for industrial applications.
Article
Thermodynamics
Tianyi Li, Aravinda Kar, Ranganathan Kumar
Summary: This paper investigates the opto-thermal interaction between a laser beam and a nanosuspension droplet, analyzing the thermal response of the droplet at different laser intensities depending on the optical properties of the nanosuspensions. The results show that the explosion characteristics of the droplet depend on the optical properties of the suspension, such as reflectance, absorption coefficient, and refractive index.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Review
Optics
Rashid A. A. Ganeev
Summary: High-order harmonics generation (HHG) in laser-induced plasmas is an advanced method for creating coherent radiation sources in the extreme ultraviolet region for different purposes. This review discusses previous developments and recent advancements of this approach and its potential goals in the field of high-order nonlinear spectroscopy of materials. The implementation of advanced methods for studying materials and their properties using HHG of ultrashort laser pulses in laser-ablated samples is analyzed.
APPLIED PHYSICS B-LASERS AND OPTICS
(2023)
Article
Engineering, Chemical
Sung Hwa Hwang, Kazunori Koga, Yuan Hao, Pankaj Attri, Takamasa Okumura, Kunihiro Kamataki, Naho Itagaki, Masaharu Shiratani, Jun-Seok Oh, Susumu Takabayashi, Tatsuyuki Nakatani
Summary: This study successfully generated controlled size hydrogenated amorphous carbon nanoparticles in Ar+CH4 multi-hollow discharge plasmas. It was found that the deposition of carbon-related radicals was the dominant process for nanoparticle growth in plasmas, and the size of nanoparticles was influenced by the gas residence time in holes of the discharge electrode.
Article
Physics, Multidisciplinary
Evgenia A. Ponomareva, Azat O. Ismagilov, Sergey E. Putilin, Anton N. Tsypkin, Sergei A. Kozlov, Xi-Cheng Zhang
Summary: The study demonstrates enhanced terahertz wave generation in liquid jets through a modified excitation scheme, emphasizing the importance of pre-ionization for optimal input conditions. The research reveals preferences for longer pre-pulses to induce effective ionization and shorter signals for strong laser-plasma interaction, ultimately leading to the possibility of achieving high optical-to-THz conversion efficiency values.
COMMUNICATIONS PHYSICS
(2021)
Article
Physics, Multidisciplinary
Cong Xu, Zhigang Liu
Summary: This study utilized the heat released by the alumino-thermic reaction between Al wire and CuO powder to enhance the shock wave generated by underwater electrical wire explosion. Experimental and numerical simulation results showed that the coating layer on the Al wire delayed the restrike of the exploding wire, resulting in an improved shock wave amplitude and steeper rising edge.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Multidisciplinary Sciences
Yang Hwan Kim, Hyeon Kim, Seong Cheol Park, Yongjin Kwon, Kyunghoon Yeom, Wosik Cho, Taeyong Kwon, Hyeok Yun, Jae Hee Sung, Seong Ku Lee, Tran Trung Luu, Chang Hee Nam, Kyung Taec Kim
Summary: High-harmonic radiation can be continuously generated from a liquid plasma mirror, providing a possible way for the generation of intense attosecond pulses at a high-repetition rate. This research paves the way for the development of bright, stable, and high-repetition-rate attosecond light sources, benefiting the study of ultrafast laser-matter interactions.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Chunyan Jiang, Yaming Wang, Shuqi Wang, Yongchun Zou, Jiahu Ouyang, Dechang Jia, Yu Zhou
Summary: The effect of electrolyte composition on the formation process and performance of PEO coatings on SiCp/Al composites is compared. The results show that the electrolyte composition has a significant influence on the coating growth, spark discharge intensity, and local temperature range. The resulting coatings have different surface porosity and phase composition depending on the electrolyte used. The electrochemical tests demonstrate differences in the anti-corrosive ability and electrical insulation protection performance of the coatings.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Multidisciplinary
Shuqi Li, Yunhu Liu, Hao Yuan, Jianping Liang, Min Zhang, Yao Li, Dezheng Yang
Summary: This paper investigates a high-density gas-liquid discharge plasma generated using nanosecond pulse voltage and a floating electrode. Gas temperature and electron density are calculated through optical emission spectra, and the plasma characteristics are discussed in relation to spatial distribution, discharge gap, and gas flow rate. The study reveals variations in gas temperature, electron density, and emission intensities of different species under different discharge conditions.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Multidisciplinary
Sergey A. Petrov, Boris B. Bokhonov, Dina Dudina, Michail A. Korchagin, Alexander I. Gavrilov, Arina Ukhina, Olga Bakina, Marat I. Lerner
Summary: The structural features of Fe-25 wt.% Ag pseudo-alloys obtained by spark plasma sintering and ball milling were compared. The sintered pseudo-alloy from the ball-milled powder had higher microhardness and a uniform structure, while the sintered material from the WEE powder contained inclusions of different sizes and the resulting porous silver had micrometer-sized pores.
Article
Instruments & Instrumentation
Attila Kohut, Lajos Peter Villy, Gergely Kohut, Gabor Galbacs, Zsolt Geretovszky
Summary: Spark discharge generators induce spark ablation of non-insulating electrodes in controlled gaseous environments, resulting in the formation of various nanostructures. This study introduces a calibration-free OES method tailored for spark plasmas used in binary nanoparticle generation, allowing for the direct estimation of total number concentration ratios using multi-element combinatory Boltzmann plots.
APPLIED SPECTROSCOPY
(2023)
Article
Multidisciplinary Sciences
Gonzalo Avaria, Alejandro Clausse, Sergio Davis, Cristian Pavez, Nelson Villalba, Osvaldo Cuadrado, Jose Moreno, H. Marcelo Ruiz, Leopoldo Soto
Summary: This study presents an experimental assessment of the electron density in the rundown phase of a hydrogen plasma focus. The electron density of the passing sheath is measured using hydrogen alpha emission and analyzed using Bayesian posterior probability assessment. The results provide insights into the sheath behavior and estimate the plasma sheath temperature and velocity during the rundown.
SCIENTIFIC REPORTS
(2022)
Article
Physics, Fluids & Plasmas
N. F. Beier, F. Dollar
Summary: This paper performs a numerical investigation on the role of wavelength and polarization in relativistic, high-harmonic generation from normal-incidence, two-beam interactions off plasma mirrors. It finds that the two-beam harmonic-generation mechanism is a robust process described by a set of well-defined selection rules. The study demonstrates that the emitted harmonics from normal-incidence interactions exhibit an intensity optimization when the incident fields are of equal intensity for two-color circularly polarized fields.
Review
Chemistry, Multidisciplinary
Rok Zaplotnik, Gregor Primc, Alenka Vesel
Summary: A suitable technique for localized surface treatment of solid materials is an atmospheric pressure plasma jet (APPJ), whose properties are influenced by details like gaseous impurities concentration. The simplest configuration of APPJ using optical emission spectroscopy (OES) is discussed along with results from various studies. Studies show that surface treatment is limited by the area reached by the reactive radicals.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Yunfei Meng, Jian Li, Ming Gao, Hui Chen
Summary: Double-wire plasma arc melting deposition was used to fabricate Ni-Al intermetallic compounds. The proposed double-wire synchronous feeding method solved the problem of weld bead formation caused by preferential melting of the Al wire. After optimizing the feeding position, the effects of heat input on the microstructure uniformity were studied.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Composites
Gandluri Parameswarreddy, Yugandhara Rao Yadam, Kavitha Arunachalam, Ramanujam Sarathi, Hisayuki Suematsu
Summary: This study investigates the electromagnetic interference (EMI) shielding effectiveness of an epoxy polymer composite reinforced with carbon fiber mat, short carbon fiber, and multi-walled carbon nanotube in the X-band. The results demonstrate that the orientation of carbon fiber mat has an impact on the EMI shielding, while the addition of short carbon fiber and multi-walled carbon nanotube can enhance the shielding effectiveness. Microstructural analysis reveals a uniform dispersion and strong adhesion of the additives in the epoxy matrix, leading to improved mechanical properties. The homogeneous epoxy composite with enhanced EMI shielding ability and mechanical properties shows promise as an efficient EMI shielding material.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Composites
Moutusi Paul, Palash Mishra, Pabbati Vinod, Ramanujam Sarathi, Mithun Mondal
Summary: This research focuses on the development of silicone rubber nanocomposites for use in nuclear power stations, capable of withstanding the stress posed by gamma-ray irradiation. Various tests were conducted to assess the surface changes, thermal stability, moisture absorption behavior, and erosion resistance of the specimens.
POLYMER COMPOSITES
(2023)
Article
Computer Science, Information Systems
J. Manoj Dhivakar, Myneni Sukesh Babu, Ramanujam Sarathi, Stefan Kornhuber, Naresh Chillu
Summary: Silicone rubber micro-nanocomposites filled with micro-ATH and nano-alumina particles were irradiated with gamma rays to investigate the changes in surface condition. Contact angle, AFM analysis, CIV measurement, LIBS analysis, and other techniques were used. The recovery rate of the micro-nanocomposites was found to be lower compared to the base SR material. The data showed correlations between the contact angle, CIV, surface roughness, and other properties. Sample S2 exhibited relatively less degradation after irradiation.
Article
Computer Science, Information Systems
K. Sanjana, Myneni Sukesh Babu, Ramanujam Sarathi, Naresh Chillu
Summary: Silicone rubber samples were coated with various artificially prepared pollutants and analyzed using laser-induced breakdown spectroscopy (LIBS) to identify and distinguish them. LIBS successfully identified the elemental composition of different pollutants, such as copper sulphate, carbon-based compounds (fly ash, coal), and calcium-based compounds (cement, calcium phosphate). LIBS spectral data combined with machine learning (ML) algorithms achieved a classification accuracy of 97.43% using Light gradient boosting technique, with a reasonable computation time of 5.1 s.
Article
Computer Science, Information Systems
S. K. Amizhtan, R. Akash, Ramesh L. L. Gardas, R. Sarathi, B. Aryanandiny
Summary: The present study investigates the influence of different surfactants on the electrical and rheological properties of nano-silica based ester fluid. The inclusion of ionic and non-ionic surfactants improves the stability of the nanofluid. CTAB, as a surfactant, enhances the discharge resistance property and the breakdown strength of the ester nanofluid. The fluorescent fiber technique is more sensitive than the Ultra high frequency sensor in detecting corona discharge.
Article
Engineering, Electrical & Electronic
S. K. Amizhtan, Stanzin Gyatso, Ramanujam Sarathi, Balaji Srinivasan, Bannur Nanjunda Shivananju
Summary: Early detection of corona discharge using two-dimensional material coated fluorescent fiber is explored in this study. The use of Molybdenum disulphide (MoS2) material as coating enhances the detection efficiency and energy content of the discharge signal. The discharge is observed at the peak of the applied AC voltage according to phase resolved partial discharge studies.
IEEE SENSORS LETTERS
(2023)
Article
Optics
Manish Chandra, Satyanarayanan Seshadri, Nilesh J. Vasa
Summary: This paper presents a dual-wavelength absorption-based approach for measuring and validating the steam dryness fraction of wet steam. The accuracy of the dryness measurement system using this optical method is determined to be +/- 1% for the range of dryness and operating pressure (1-10 bars) of wet steam.
Review
Energy & Fuels
Arputhasamy Joseph Amalanathan, Ramanujam Sarathi, Maciej Zdanowski
Summary: This paper examines the impact of nanoparticles on ester fluids in power transformers, focusing on their usage, preparation methodologies, stability, electrical double layer formation, and partial discharge detection. It also discusses the breakdown mechanism, flow behavior, permittivity, physio-chemical properties, thermal conductivity, and aging of nanofluids. The study highlights the need for a better understanding of specific nanoparticles before implementing them in real-time transformers.
Article
Energy & Fuels
R. Bharathi Raja, Anusha C. Halageri, R. Sankar, Ramanujam Sarathi, Ravikrishnan Vinu
Summary: This study investigates the use of non-thermal plasma in a swirl-induced electrode discharge reactor for the dry reforming of methane. The reactor design promotes better mixing of reactant gases, leading to increased conversion rates. The study examines the effect of flow rates and compositions of CO2/CH4 on conversion, and analyzes the characteristics of the produced syngas and solid carbon. The findings show that higher concentrations of CO2 or CH4 result in increased conversion, while increasing flow rates reduce energy costs.
Article
Engineering, Electrical & Electronic
Ashwin Desai Belaguppa Manjunath, Noureddine Harid, Huw Griffiths, Ricardo Pereira Nogueira, Nurym Noyanbayev, Abderrahmane Haddad, Sarathi Ramanujam
Summary: This study proposes two suitable models to represent the conduction behavior of electrolytes and soils, and verifies and analyzes the models using experimental data. The models accurately describe the impedance characteristics of electrolytes and soils, and help to understand the impact of EEI effect at low frequencies and the intrinsic characteristics of the test medium at high frequencies.
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY
(2023)
Article
Materials Science, Composites
B. Thangabalan, R. Sarathi, N. Harid, H. Griffiths
Summary: The effect of corona aging on the surface potential dynamics and charge trap characteristics of silicone rubber alumina nanocomposite was investigated. The addition of alumina filler increased the surface potential decay time and maximum trap energy. Corona aging led to a reduction in trap depth, and the addition of alumina filler limited the degradation and change in charge trap distribution. An analysis of space charge behavior and comparison of different nanocomposites were presented. Based on the results obtained using the pulsed electro-acoustic technique (PEA), it was concluded that the concentration of space charge and enhancement in the electric field increased with aging duration, with the highest values observed in the case of 60 min corona-aged pure silicone rubber. The recovery of trap distribution after corona discharges was faster for the virgin sample and slower for the sample with 5 wt% alumina.
POLYMER COMPOSITES
(2023)
Article
Engineering, Electrical & Electronic
S. K. Amizhtan, R. Sarathi, Hans Edin, Nathaniel Taylor
Summary: This work investigates the impact of oil reclamation on the conduction mechanism and dielectric properties of thermally aged transformer mineral oil. The study shows that reclamation treatment improves the corona inception voltage and decreases the loss factor and electrical conductivity. Additionally, it is found that reclamation reduces the ionic mobility, conductivity, ionic radius, and concentration of ions in the oil.
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
(2023)
Article
Engineering, Electrical & Electronic
Yugandhara Rao Yadam, Sarathi Ramanujam, Kavitha Arunachalam
Summary: The polarization sensitivity of an ultrahigh-frequency (UHF) sensor for detecting partial discharge (PD) activity in gas insulated switchgear (GIS) was studied using a tapered planar spiral (TPS) antenna. The TPS antenna was optimized for circular polarization (CP) over the frequency range of 0.5-3.5 GHz. Compared to a linearly polarized (LP) UHF antenna, the TPS antenna showed stronger polarization sensitivity for detecting PDs in the GIS.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
K. Saran Kumar, Y. Esther Blesso Vidhya, Ramya Selvaraj, Satyanarayanan Seshadri, S. M. Shiva Nagendra, Nilesh J. Vasa
Summary: This article presents a dual-wavelength band broadband photoacoustic spectroscopy (BPAS) technique ideally suited to low-energy broadband sources for industrial and environmental multigas sensing applications. The proposed technique allows for comprehensive concentration measurement and eliminates the impact of cross sensitivity among gases. The MDL achieved for methane, ammonia, and carbon monoxide were 0.4 and 0.7 ppm, 0.3 and 1.8 ppm, and 2.6 ppm, respectively.
IEEE SENSORS JOURNAL
(2023)
Review
Energy & Fuels
Arputhasamy Joseph Amalanathan, Ramanujam Sarathi, Maciej Zdanowski, Ravikrishnan Vinu, Zbigniew Nadolny
Summary: This paper reviews the gassing tendency of different insulating fluids in transformers and provides precautionary measures for fault diagnosis. Experimental techniques for identifying gassing due to electrical and thermal stress, as well as stray gassing phenomenon, are explained. Interpretation schemes based on historical data of mineral oil may lead to unexpected errors for alternative fluids. Mineral oil and natural ester have positive gassing tendency, while synthetic ester exhibits negative gassing tendency. Stray gases are mostly caused by C-C bond breakage at normal operating temperature. Hydrogen and ethylene are predominantly formed at lower temperatures. Silicone oil and ester fluids are more stable and produce less gassing compared to mineral oil under simulated hot spots. Additives, oxygen, and water content in insulating fluids can confuse the identification of actual faults. Regeneration of insulating fluids using adsorbents reduces gassing tendency depending on the number of cycles.
Article
Optics
Jianbao Zhao, Brant E. Billinghurst, Paul L. Raston
Summary: The far-infrared spectrum of room temperature formic acid labeled with 13C has been recorded and analyzed, leading to the determination of accurate line positions and predictions relevant to Earth's atmosphere and interstellar sources.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Semen Vasilchenko, Alexander Solodov, Oleg Egorov, Vladimir Tyuterev
Summary: Ozone plays a crucial role in atmospheric chemistry and radiative processes, and it may serve as a potential biosignature species in exoplanetary observations. This study utilized a continuous-wave cavity-ring-down spectrometer to accurately measure the absorption cross-sections of ozone in the near-infrared range. The results provide more precise data and have potential applications in atmospheric research.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Baorui Huang, Bo Peng, Qifeng Ren, Sheng Liao
Summary: This study utilizes the polarization bidirectional reflectance distribution function (p-BRDF) model derived from the microfacet theory to analyze the spectral p-BRDF of a brass surface. The results show that factors such as polarization state, wavelength, surface roughness, and permittivity have a significant impact on the distribution of BRDF on the object surface.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Qingwei Duan, Jiajie Wang, Qiwei Li, Xiang'e Han, Kuan Fang Ren
Summary: This paper introduces the applications of the generalized Lorenz-Mie theory (GLMT) and the vectorial complex ray model (VCRM) in the interaction between beams and particles. By comparing the experimental results, it is found that VCRM performs well in Gaussian beam scattering problems, providing a new method for studying the scattering of shaped beams by large particles/objects of any shape.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Yuefan Du, Xiaoping Li, Lei Shi, Fangyan Li, Shurong Yuan
Summary: This study proposes a physics-constrained model that utilizes the distribution characteristics of gas spectral parameters to predict spectral parameters for unknown wavelengths. Experimental results show that the model improves prediction accuracy and increases the data volume of gas spectral parameters by 4-5 times.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Laurentius Windholz, Imran Siddiqui, Shamim Khan, Syed Tanweer Iqbal
Summary: In this study, we report the discovery of two energy levels of the Pr atom that exhibit strong J-mixing, as well as the observed hyperfine structure patterns. The composition of wave functions, in addition to J-values, plays a crucial role in determining the appearance of these patterns.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Matthias Germann, Adrian Hjalten, Jonathan Tennyson, Sergei N. Yurchenko, Iouli E. Gordon, Christian Pett, Isak Silander, Karol Krzempek, Arkadiusz Hudzikowski, Aleksander Gluszek, Grzegorz Sobon, Aleksandra Foltynowicz
Summary: In this study, optical frequency comb Fourier transform spectroscopy was used to record the spectroscopic data of formaldehyde in a specific frequency range. The line positions and intensities of rovibrational transitions were obtained through line-by-line fitting. By incorporating these accurate line positions into the analysis, more energy levels and rovibrational transitions were predicted with reduced uncertainties in the H2CO spectrum.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Leonardo A. Ambrosio, Jhonas O. de Sarro, Gerard Gouesbet
Summary: This study derives a polychromatic version of the generalized Lorenz-Mie theory stricto sensu (GLMT) by expanding arbitrary time-dependent fields into partial waves using Bromwich scalar potentials. The new formalism introduces field shape spectra (FSSs) which are intrinsically frequency-dependent, modifying and redefining the physical quantities expressed in the monochromatic GLMT.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Patrick C. Chaumet
Summary: The paper proposes two new methods (IDR(s) and GPBiCGstab(L)) for computing the electromagnetic diffraction of objects larger than the wavelength. It is found that IDR(s) can reduce computation time but may not converge in some cases, while GPBiCGstab(L) always converges and also reduces computation time compared to QMR, GPBiCG, and BiCGstab.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Antigoni Kleanthous, Anthony J. Baran, Timo Betcke, David P. Hewett, Christopher D. Westbrook
Summary: To improve weather and climate models, it is important to accurately calculate the single-scattering properties of randomly oriented complex atmospheric ice crystals. This study applies Boundary Element Method (BEM) to calculate these properties in the microwave and sub-millimeter region of the electromagnetic spectrum for all-sky data assimilation. The results show that BEM can accurately compute the scattering properties of complex ice aggregates, which is crucial for weather and climate models.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Ben Niu, Yanting Li, Gang Xiong, Jihui Chen, Zhimin Hu, Yunqing Fu, Yaming Zou, Chongyang Chen, Ke Yao
Summary: This study presents both experimental and theoretical analysis of the 4d 2D5/2 -> 2D3/2 magnetic dipole transition in Rb-like ions. The correlation between the theoretical and experimental findings is observed, and it is illustrated that the contribution of the core-valence correlation is pivotal for the fine structure splittings.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
James A. Lock, Gunther P. Konnen, Philip Laven
Summary: Researchers have derived an analytical generalization of Airy theory that provides a more accurate approximation for the primary rainbow, but still has limitations for the second-order rainbow and beyond.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Shixiong Wu, Xuebang Gao, Xuqiang Dou, Li Xie
Summary: In this paper, an indoor experimental study was conducted to investigate the optical attenuation caused by sand/dust storms at different relative humidity levels. It was found that the hygroscopic growth of sand/dust particles has a significant effect on optical attenuation when the relative humidity is above 60%. Based on the double-parameter Kasten model, a proposed optical attenuation model takes into account visibility, particle size, relative humidity, and optical wavelength. Numerical calculations considering the hygroscopicity effect were also performed, and the results were in agreement with the experimental data.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
Article
Optics
Zhimin Yang, Jaeman Song, Bong Jae Lee
Summary: In this study, we analyze TPX cells operating in the self-sustaining circuit and examine the effects of different bandgaps on their performance. The results show that the bandgap energy of the LED must exceed that of the PV cell for the TPX cell to function in a self-sustaining parallel circuit. Additionally, a narrower bandgap energy for the PV cell and a wider bandgap energy for the LED can improve the performance of the TPX cell in the self-sustaining circuit.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2024)
