SPARKS
Publieke samenvatting / Public summary
Aanleiding
Despite significant advancements in the efficiency of lab-scale perovskite solar cells (PSCs), stability remains a major challenge hindering their commercialization. To address this, accurate characterization of perovskite and tandem solar cells is critical. Existing solar simulators often fail to meet the spectral, spatial, and temporal requirements needed for precise measurements of these advanced materials. Perovskite cells are particularly sensitive to light intensity and spectrum, while tandem cells require careful tuning of illumination to evaluate each sub-cell accurately. Inadequate simulation can lead to errors in efficiency assessment and hinder the understanding of long-term stability and degradation. Therefore, developing a measuring tool with advanced functionalities is urgently needed to match the pace of innovation in photovoltaics and ensure reliable data for further development and real-world application.
Doelstelling
The goal of SPARKS is to develop and validate a tool for reliable measurement of next-generation photovoltaics through advanced monitoring of perovskite devices during ISOS stability tests. Various perovskite (single junction and tandem) cells will be iteratively fabricated to improve intrinsic stability using sALD layers, novel materials, and compositional tuning and defect passivation strategies. By using the LED-based sun simulator, the project aims at validating non-invasive in situ monitoring technique to reveal degradation mechanisms. Specifically, SPARKS will demonstrate the use of spectral and intensity modulation combined with advanced characterizations such as photoluminescence (PL), and electroluminescence (EL) to support spatial analysis of perovskite degradation.
Korte omschrijving
- Eternal Sun will develop an advanced LED solar simulator with in-situ characterization options, such as external quantum efficiency (EQE), EL/PL for long term stability testing based on international ISOS protocols. Software upgrades will be implemented for potential bifacial devices. - TNO will develop semi-transparent PSCs and tandem devices, selecting materials and stacks with state-of-the-art intrinsic stability proven in literature on small scale lab devices, and upscaled such innovations via industrially compatible deposition methods. - TNO will introduce a cost effective sALD layer in collaboration with Spark Nano to enhance the intrinsic stability of the perovskite devices, aiming at surpassing light and thermal stability tests. - Eternal Sun sun-simulator will be validated on the fabricated perovskite (tandem) solar cells, and the factors influencing their stabilized power output investigated, including impact of the light spectrum, irradiance level, light uniformity, sample temperature, temperature uniformity, and electrical bias state.
Resultaat
The project will deliver a cutting-edge LED sun simulator for R&D large-area perovskite and tandem solar cells (up to 450×450 mm²), with spectral tuning and automatic mismatch compensation. The tool will be able to perform continuous thermal and light stability ageing stress testing and the tool will be designed to test also bifacial modules in an upgraded option. The simulator will offer adjustable irradiance, thermal control, parallel IV and MPP tracking, EQE, and optional EL/PL analytical features. The system will be validated on perovskite (tandem) devices fabricated using industrially relevant methods. These will include sALD thin films processed via a low cost route. Target for device stability will be aiming to achieve <5% power degradation after 1000h (ISOS L3/T1). Standardized testing and reporting guidelines will be developed for perovskite and tandem solar cells based on understandings from this project.
Despite significant advancements in the efficiency of lab-scale perovskite solar cells (PSCs), stability remains a major challenge hindering their commercialization. To address this, accurate characterization of perovskite and tandem solar cells is critical. Existing solar simulators often fail to meet the spectral, spatial, and temporal requirements needed for precise measurements of these advanced materials. Perovskite cells are particularly sensitive to light intensity and spectrum, while tandem cells require careful tuning of illumination to evaluate each sub-cell accurately. Inadequate simulation can lead to errors in efficiency assessment and hinder the understanding of long-term stability and degradation. Therefore, developing a measuring tool with advanced functionalities is urgently needed to match the pace of innovation in photovoltaics and ensure reliable data for further development and real-world application.
Doelstelling
The goal of SPARKS is to develop and validate a tool for reliable measurement of next-generation photovoltaics through advanced monitoring of perovskite devices during ISOS stability tests. Various perovskite (single junction and tandem) cells will be iteratively fabricated to improve intrinsic stability using sALD layers, novel materials, and compositional tuning and defect passivation strategies. By using the LED-based sun simulator, the project aims at validating non-invasive in situ monitoring technique to reveal degradation mechanisms. Specifically, SPARKS will demonstrate the use of spectral and intensity modulation combined with advanced characterizations such as photoluminescence (PL), and electroluminescence (EL) to support spatial analysis of perovskite degradation.
Korte omschrijving
- Eternal Sun will develop an advanced LED solar simulator with in-situ characterization options, such as external quantum efficiency (EQE), EL/PL for long term stability testing based on international ISOS protocols. Software upgrades will be implemented for potential bifacial devices. - TNO will develop semi-transparent PSCs and tandem devices, selecting materials and stacks with state-of-the-art intrinsic stability proven in literature on small scale lab devices, and upscaled such innovations via industrially compatible deposition methods. - TNO will introduce a cost effective sALD layer in collaboration with Spark Nano to enhance the intrinsic stability of the perovskite devices, aiming at surpassing light and thermal stability tests. - Eternal Sun sun-simulator will be validated on the fabricated perovskite (tandem) solar cells, and the factors influencing their stabilized power output investigated, including impact of the light spectrum, irradiance level, light uniformity, sample temperature, temperature uniformity, and electrical bias state.
Resultaat
The project will deliver a cutting-edge LED sun simulator for R&D large-area perovskite and tandem solar cells (up to 450×450 mm²), with spectral tuning and automatic mismatch compensation. The tool will be able to perform continuous thermal and light stability ageing stress testing and the tool will be designed to test also bifacial modules in an upgraded option. The simulator will offer adjustable irradiance, thermal control, parallel IV and MPP tracking, EQE, and optional EL/PL analytical features. The system will be validated on perovskite (tandem) devices fabricated using industrially relevant methods. These will include sALD thin films processed via a low cost route. Target for device stability will be aiming to achieve <5% power degradation after 1000h (ISOS L3/T1). Standardized testing and reporting guidelines will be developed for perovskite and tandem solar cells based on understandings from this project.
Om de kaart te tonen hebben we toestemming nodig voor statistiek cookies.