Baranwal Ajay K, Kanaya Shusaku, Peiris T A Nirmal, Mizuta Gai, Nishina Tomoya, Kanda Hiroyuki, Miyasaka Tsutomu, Segawa Hiroshi, Ito Seigo
Department of Materials and Synchrotron Radiation Engineering, University of Hyogo, 2167, Shosha, Himeji, Japan.
Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8904, Japan.
ChemSusChem. 2016 Sep 22;9(18):2604-2608. doi: 10.1002/cssc.201600933. Epub 2016 Sep 15.
Many efforts have been made towards improving perovskite (PVK) solar cell stability, but their thermal stability, particularly at 85 °C (IEC 61646 climate chamber tests), remains a challenge. Outdoors, the installed solar cell temperature can reach up to 85 °C, especially in desert regions, providing sufficient motivation to study the effect of temperature stress at or above this temperature (e.g., 100 °C) to confirm the commercial viability of PVK solar cells for industrial companies. In this work, a three-layer printable HTM-free CH NH PbI PVK solar cell with a mesoporous carbon back contact and UV-curable sealant was fabricated and tested for thermal stability over 1500 h at 100 °C. Interestingly, the position of the UV-curing glue was found to drastically affect the device stability. The side-sealed cells show high PCE stability and represent a large step toward commercialization of next generation organic-inorganic lead halide PVK solar cells.
人们为提高钙钛矿（PVK）太阳能电池的稳定性做出了许多努力，但其热稳定性，尤其是在85°C（IEC 61646气候箱测试）下，仍然是一个挑战。在户外，安装的太阳能电池温度可达85°C，特别是在沙漠地区，这为研究该温度及以上（如100°C）的温度应力影响提供了充分的动力，以确认PVK太阳能电池对工业公司的商业可行性。在这项工作中，制备了一种具有介孔碳背接触和紫外光固化密封剂的三层可印刷无空穴传输层（HTM）的CH₃NH₃PbI₃ PVK太阳能电池，并在100°C下进行了1500小时的热稳定性测试。有趣的是，发现紫外光固化胶的位置对器件稳定性有极大影响。侧面密封的电池显示出高功率转换效率（PCE）稳定性，代表了下一代有机-无机铅卤化物PVK太阳能电池商业化的一大步。
