113學年材料所-第四週 專題研討課程 演講公告 (113年10月3日)
2024.09.27
113學年上學期專題討論公告
題目:
鹼金屬推動硫族化合物光伏技術新紀元
Innovative Approach: Alkali Metals in Next-Gen Chalcogenide Photovoltaics and New Applications
演講者: 林姿瑩 助理教授
現職: 國立清華大學 材料科學工程學系 助理教授
時間: 113年10月3日(四) 下午15:10~16:00
地點: 成功大學成功校區三系館 鋼構區(3F)共同教室A1302演講廳
演講摘要:
Cu(In,Ga)Se₂ (CIGS) thin-film solar cells are emerging as a promising candidate to potentially replace crystalline silicon solar cells and dominate the photovoltaic market. Their high-efficiency potential, flexibility, and lightweight characteristics make them particularly attractive for various applications, including electric vehicles (EVs) and space technology. The efficiency of CIGS cells is significantly enhanced by alkali elements such as sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs). Understanding how these elements affect the electronic and chemical properties of the CIGS layer is crucial for achieving high-performance solar cells. Recent studies have revealed the immense potential of CIGS solar cells in space technology applications. Their excellent environmental stability and radiation resistance make them ideal for space use. CIGS solar cells, especially those treated with cesium, demonstrated exceptional radiation tolerance and self-healing capabilities in proton irradiation experiments simulating the space environment. After heat-light soaking (HLS) treatment, these cells showed efficiency recovery rates exceeding 100%, significantly outperforming untreated control groups. Moreover, CIGS technology is showing great promise in addressing the challenges faced by electric vehicles. As environmental awareness grows, EVs are seen as a crucial solution to air pollution caused by fossil fuel vehicles. However, the limited range of current lithium-ion batteries (LIBs) has hindered widespread EV adoption. CIGS solar cells offer a potential solution through "on-the-go" charging. Compared to silicon-based solar cells, CIGS cells provide a higher energy density (about ten times that of silicon-based cells). When applied to EV power supply devices, CIGS can significantly reduce the load on the power generation device, enhancing driving range and energy efficiency. In recent integrated testing, CIGS mini solar modules combined with LIBs demonstrated promising results. The solar cell supplied a high current (about 5C) to the half-cells, achieving an energy storage conversion efficiency of 79%, with an overall energy transfer efficiency from the solar mini-module to LIBs of 12.7%, even without any Pmax tracking adaptor or transformer. While the specific mechanisms of alkali fluoride post-deposition treatments (PDTs) still require further investigation, their positive impact on improving CIGS solar cell performance is widely acknowledged. As research progresses, CIGS technology is expected to approach its theoretical efficiency limit. Notably, CIGS solar cells with efficiencies exceeding 17% have shown outstanding performance under harsh proton irradiation conditions, further solidifying their position as a preferred choice for both terrestrial and space applications. In conclusion, CIGS solar cell technology demonstrates enormous potential across various fields, from space exploration to electric vehicle charging. Through continuous optimization of alkali doping techniques and in-depth study of their mechanisms, coupled with innovative integration with advanced energy storage solutions, CIGS solar cells are poised to play a crucial role in the future of sustainable energy and transportation.
歡迎各位撥冗參加!!
題目:
鹼金屬推動硫族化合物光伏技術新紀元
Innovative Approach: Alkali Metals in Next-Gen Chalcogenide Photovoltaics and New Applications
演講者: 林姿瑩 助理教授
現職: 國立清華大學 材料科學工程學系 助理教授
時間: 113年10月3日(四) 下午15:10~16:00
地點: 成功大學成功校區三系館 鋼構區(3F)共同教室A1302演講廳
演講摘要:
Cu(In,Ga)Se₂ (CIGS) thin-film solar cells are emerging as a promising candidate to potentially replace crystalline silicon solar cells and dominate the photovoltaic market. Their high-efficiency potential, flexibility, and lightweight characteristics make them particularly attractive for various applications, including electric vehicles (EVs) and space technology. The efficiency of CIGS cells is significantly enhanced by alkali elements such as sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs). Understanding how these elements affect the electronic and chemical properties of the CIGS layer is crucial for achieving high-performance solar cells. Recent studies have revealed the immense potential of CIGS solar cells in space technology applications. Their excellent environmental stability and radiation resistance make them ideal for space use. CIGS solar cells, especially those treated with cesium, demonstrated exceptional radiation tolerance and self-healing capabilities in proton irradiation experiments simulating the space environment. After heat-light soaking (HLS) treatment, these cells showed efficiency recovery rates exceeding 100%, significantly outperforming untreated control groups. Moreover, CIGS technology is showing great promise in addressing the challenges faced by electric vehicles. As environmental awareness grows, EVs are seen as a crucial solution to air pollution caused by fossil fuel vehicles. However, the limited range of current lithium-ion batteries (LIBs) has hindered widespread EV adoption. CIGS solar cells offer a potential solution through "on-the-go" charging. Compared to silicon-based solar cells, CIGS cells provide a higher energy density (about ten times that of silicon-based cells). When applied to EV power supply devices, CIGS can significantly reduce the load on the power generation device, enhancing driving range and energy efficiency. In recent integrated testing, CIGS mini solar modules combined with LIBs demonstrated promising results. The solar cell supplied a high current (about 5C) to the half-cells, achieving an energy storage conversion efficiency of 79%, with an overall energy transfer efficiency from the solar mini-module to LIBs of 12.7%, even without any Pmax tracking adaptor or transformer. While the specific mechanisms of alkali fluoride post-deposition treatments (PDTs) still require further investigation, their positive impact on improving CIGS solar cell performance is widely acknowledged. As research progresses, CIGS technology is expected to approach its theoretical efficiency limit. Notably, CIGS solar cells with efficiencies exceeding 17% have shown outstanding performance under harsh proton irradiation conditions, further solidifying their position as a preferred choice for both terrestrial and space applications. In conclusion, CIGS solar cell technology demonstrates enormous potential across various fields, from space exploration to electric vehicle charging. Through continuous optimization of alkali doping techniques and in-depth study of their mechanisms, coupled with innovative integration with advanced energy storage solutions, CIGS solar cells are poised to play a crucial role in the future of sustainable energy and transportation.
歡迎各位撥冗參加!!