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Substrate temperature optimization of pulsed-laser-deposited and in-situ Zn-supplemented-CZTS films and their integration into photovoltaic devices
(2022-02-10)
Article
Open AccessThe pulsed laser deposition (PLD) technique was used to deposit CZTS thin films onto SLG/Mo substrates via the KrF-laser ablation of a composite target consisting of Cu2ZnSnS4 pellet onto which Zn strips were purposely ... -
Synergetic effect induced/tuned bimetallic nanoparticles (Pt-Ni) anchored graphene as a catalyst for oxygen reduction reaction and scalable SS-314L serpentine flow field proton exchange membrane fuel cells (PEMFCs)
(2022-08-01)
Article
Open AccessA simple design of electroactive and cost-effective electrocatalysts for oxygen reduction reaction (ORR) activity is crucial towards energy conversion in the commercialization of proton exchange membrane fuel cells (PEMFCs). ... -
Life cycle assessment of different chalcogenide thin-film solar cells
(2022-05-01)
Article
Open AccessThin-film photovoltaics (PV) cells offer several benefits over conventional first-generation PV technologies, including lighter weight, flexibility, and lower power generation cost. Among the competing thin-film technologies, ... -
Acceleration and drift reduction of MOX gas sensors using active sigma-delta controls based on dielectric excitation
(2022-08-15)
Article
Open AccessThe objective of this paper is to apply a closed-loop control based on dielectric excitation to MOX gas sensors in order to improve their response time. The control implements a feedback loop in which temperature modulations ... -
Towards low cost and sustainable thin film thermoelectric devices based on quaternary chalcogenides
(2022-05-20)
Article
Open AccessA major challenge in thermoelectrics (TEs) is developing devices made of sustainable, abundant, and non-toxic materials. Furthermore, the technological drive toward low sizes makes crucial the study of nano and micro ... -
N-type doping of SiC-passivated Ge by pulsed laser melting towards the development of interdigitated back contact thermophotovoltaic devices
(2022-01-01)
Article
Open AccessIn this article, a method for phosphorous (n-type) doping of germanium based on spin-on dopant sources and Pulsed Laser Melting (PLM) throughout an amorphous silicon carbide (a-SixC1-x:H) layer, which provides both surface ... -
Controlling the anionic ratio and gradient in kesterite technology
(2022-01-03)
Article
Open AccessAccurate anionic control during the formation of chalcogenide solid solutions is fundamental for tuning the physicochemical properties of this class of materials. Compositional grading is the key aspect of band gap engineering ... -
A simple and effective methodology for sizing electrical energy storage (EES) systems based on energy balance
(Elsevier, 2022-05)
Article
Open AccessThe use of the electrical energy storage (EES) plays an important role in the transition of energy generation towards renewable energy sources (RESs). An effective sizing of EES systems is very important in order to cope ... -
Stabilization of the J-V characteristic of a perovskite solar cell using an intelligent control loop
(2021-01-02)
Article
Open AccessThe phenomena related to charge trapping are among the most relevant open issues that affect the long-term stability of perovskite-based devices. According to this, the objective of this paper is to report experimental ... -
Space-charge limited ionic conductivity enhancement in gel polymer electrolyte capacitors by emb e dding nanoparticles
(2021-08-03)
Article
Open AccessIn this work, a novel mixture of ionic liquid gel polymer electrolyte (ILGPE), containing 1-butyl-3-methylimidazolium bromide, ammonium acetate and poly(vinyl alcohol), with Si@C and SiO2 embedded nanoparticles is fabricated. ... -
Progress and perspectives of thin film kesterite photovoltaic technology: a critical review
(2019-02-14)
Article
Open AccessThe latest progress and future perspectives of thin film photovoltaic kesterite technology are reviewed herein. Kesterite is currently the most promising emerging fully inorganic thin film photovoltaic technology based on ... -
Interdigitated back-contacted crystalline silicon solar cells fully manufactured with atomic layer deposited selective contacts
(2022-04-02)
Article
Open AccessThe interdigitated back-contacted (IBC) solar cell concept has been extensively studied for single-junction cells and more recently as a good choice for three-terminal tandem devices. In this work, carrier-selective contacts ...
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