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New Materials and Concepts for Solar Energy Conversion and Storage

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "D1: Advanced Energy Materials".

Deadline for manuscript submissions: closed (17 November 2021) | Viewed by 3163

Special Issue Editor


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Guest Editor
Hawai'i Natural Energy Institute (HNEI), Honolulu, HI 96822, USA
Interests: photoelectrochemical water splitting; photovoltaics; catalysis; thin film processing with vacuum- and liquid-based techniques; nanostructures; tandem device integration

Special Issue Information

Dear Colleagues,

The ability to produce energy from reliable, affordable, sustainable and safe sources is critical to address the economic and environmental challenges the world is currently facing. Solar energy is arguably the most abundant source of renewables, yet the energy production from photovoltaics (PV) only accounts for less than 10% of all renewables, and despite decades of materials research and development, single-junction crystalline silicon-based solar cells still dominate. The diurnal nature of PV also requires storage, and batteries have recently emerged as an “ideal” partner for PV, but matching the storage needs of large-scale PV plants using only batteries will be a challenging task. As more countries are setting drastic deadlines to completely eliminate the use fossil fuels, a more diverse energy portfolio, which goes beyond silicon-based PV and battery storage solutions, is necessary to accelerate the transition to a decarbonized world. The purpose of this Special Issue is specifically to present recent advances in materials design and concepts for Solar Energy Conversion and Storage. We invite original manuscripts presenting the latest progress in this area, with special reference to the following topics:

  • Theory-driven solar materials design;
  • New concepts for solar fuels production;
  • Low-cost material processing for photovoltaics;
  • Device integration for standalone photoelectrochemical water splitting;
  • Emerging solar absorbing materials;
  • Passivation layers for durable (photo)electrochemistry;
  • Light management and trapping for enhanced photo-conversion efficiency;
  • Development of catalytic materials for (photo)electrochemistry.

Dr. Nicolas M. Gaillard
Guest Editor

Manuscript Submission Information

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Keywords

  • photovoltaics
  • photoelectrochemistry
  • solar fuels
  • thin film solar absorbers
  • plasmonics
  • tandem devices
  • water splitting
  • surface passivation

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Published Papers (1 paper)

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Research

12 pages, 2160 KiB  
Article
Perovskite PV Energy Harvesting System for Uninterrupted IoT Device Applications
by Yerassyl Olzhabay, Annie Ng and Ikechi A. Ukaegbu
Energies 2021, 14(23), 7946; https://doi.org/10.3390/en14237946 - 27 Nov 2021
Cited by 20 | Viewed by 2621
Abstract
The performance of perovskite solar cells (PSCs) has been improved throughout the years. These photovoltaic (PV) cells can be used to power Internet of Things (IoT) devices for indoor applications. A perovskite PV energy harvesting system with a stand-by battery that continuously powers [...] Read more.
The performance of perovskite solar cells (PSCs) has been improved throughout the years. These photovoltaic (PV) cells can be used to power Internet of Things (IoT) devices for indoor applications. A perovskite PV energy harvesting system with a stand-by battery that continuously powers an IoT device is developed in this work. The battery is required to complement the PSCs when the latter have difficulties in power delivery during low or no irradiance. The performance of the energy harvesting circuit as well as the battery charge and discharge scenarios are investigated. Voltage matching between the PSC and the battery is achieved by a boost converter. The PSC energy harvesting system uses fractional open-circuit voltage (FOCV) based maximum power point tracking (MPPT), which utilizes a Sample and Hold (S&H) circuit. The FOCV technique is based on a comparison of the perovskite PV open circuit voltages and the maximum power points. For each irradiance level, the maximum power point is unique, and this work uses a light-dependent resistor (LDR) to adjust the scaling constant in MPPT. Case studies include various scenarios under 1000 lux fluorescent light and 1 sun irradiance as well as a consideration of different battery states. Full article
(This article belongs to the Special Issue New Materials and Concepts for Solar Energy Conversion and Storage)
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