Hybrid solar energy device for simultaneous electric power generation and molecular solar thermal energy storage
Artikel i vetenskaplig tidskrift, 2024

The performance of photovoltaic (PV) solar cells can be adversely affected by the heat generated from solar irradiation. To address this issue, a hybrid device featuring a solar energy storage and cooling layer integrated with a silicon-based PV cell has been developed. This layer employs a molecular solar thermal (MOST) energy storage system to convert and store high-energy photons—typically underutilized by solar cells due to thermalization losses—into chemical energy. Simultaneously, it effectively cools the PV cell through both optical effects and thermal conductivity. Herein, it was demonstrated that up to 2.3% of solar energy could be stored as chemical energy. Additionally, the integration of the MOST system with the PV cell resulted in a notable decrease in the cell's surface temperature by approximately 8°C under standard solar irradiation conditions. The hybrid system demonstrated a solar utilization efficiency of 14.9%, underscoring its potential to achieve even greater efficiencies in forthcoming advanced hybrid PV solar energy systems.

photovoltaics

solar energy conversion

molecular solar thermal energy storage

solar energy storage

Författare

Zhihang Wang

Chalmers, Kemi och kemiteknik, Tillämpad kemi

University of Cambridge

Helen Hölzel

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Universitat Politecnica de Catalunya

Lorette Fernandez

Consejo Superior de Investigaciones Científicas (CSIC)

Muhammad Adil Salman Aslam

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Paulius Baronas

Consejo Superior de Investigaciones Científicas (CSIC)

Jessica Orrego Hernandez

Teknisk ytkemi

Shima Ghasemi

Chalmers, Kemi och kemiteknik, Kemi och biokemi

M. Campoy-Quiles

Consejo Superior de Investigaciones Científicas (CSIC)

Kasper Moth-Poulsen

Consejo Superior de Investigaciones Científicas (CSIC)

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Institucio Catalana de Recerca i Estudis Avancats

Universitat Politecnica de Catalunya

Joule

25424351 (eISSN)

Vol. 8 9 2607-2622

Photo Thermal Management Materials (PHOTERM)

Europeiska kommissionen (EU) (EC/H2020/101002131), 2021-10-01 -- 2026-09-30.

Molecular Solar Thermal energy storage systems (MOST)

Energimyndigheten (2019-010724), 2019-05-07 -- 2019-09-03.

Europeiska kommissionen (EU) (EC/H2020/951801), 2020-09-01 -- 2024-02-29.

Drivkrafter

Hållbar utveckling

Ämneskategorier (SSIF 2011)

Energiteknik

Energisystem

Styrkeområden

Energi

DOI

10.1016/j.joule.2024.06.012

Mer information

Senast uppdaterat

2025-03-09