Corrugation Architecture Enabled Ultraflexible Wafer‐Scale High‐Efficiency Monocrystalline Silicon Solar Cell
Corrugation Architecture Enabled Ultraflexible Wafer‐Scale High‐Efficiency Monocrystalline Silicon Solar Cell
复制标题
DOI：
10.1002/aenm.201702221
复制
发表时间：
2018-04
影响因子：
27.8
通讯作者：
R. Bahabry;A. Kutbee;S. Khan;A. Sepulveda;Irmandy Wicaksono;Maha Nour;N. Wehbe;A. S. Almislem
中科院分区：
文献类型：
--
作者：
R. Bahabry;A. Kutbee;S. Khan;A. Sepulveda;Irmandy Wicaksono;Maha Nour;N. Wehbe;A. S. Almislem
先进的现代应用要求新一代多功能太阳能电池具有极强的机械弹性、大规模、低成本和出色的功率转换效率。传统的晶体硅基太阳能电池提供了最高效的电源之一，但关键的挑战仍然是在保持电气性能的同时获得机械弹性。一种基于互补金属氧化物半导体的集成策略，其中波纹架构可实现由大块单晶大规模（127 × 127 cm 2）硅太阳能晶片制成的超柔性和低成本太阳能电池模块，功率转换效率为17%。这种周期性波纹阵列受益于可互换的太阳能电池分段方案，该方案保留了240 µm的有源硅厚度，并通过交叉背接触实现了灵活性。这些电池可以可逆地承受高机械应力，并且可以变形为Z字形和双面模块。这些硅基太阳能电池具有超灵活性和超过1000次弯曲循环的高稳定性，包括凸弯曲和凹弯曲，以拓宽应用范围。最后，示出了承载太阳能电池段的背接触件的小于140 µm的最小弯曲曲率半径。
Advanced classes of modern application require new generation of versatile solar cells showcasing extreme mechanical resilience, large‐scale, low cost, and excellent power conversion efficiency. Conventional crystalline silicon‐based solar cells offer one of the most highly efficient power sources, but a key challenge remains to attain mechanical resilience while preserving electrical performance. A complementary metal oxide semiconductor‐based integration strategy where corrugation architecture enables ultraflexible and low‐cost solar cell modules from bulk monocrystalline large‐scale (127 × 127 cm2) silicon solar wafers with a 17% power conversion efficiency. This periodic corrugated array benefits from an interchangeable solar cell segmentation scheme which preserves the active silicon thickness of 240 µm and achieves flexibility via interdigitated back contacts. These cells can reversibly withstand high mechanical stress and can be deformed to zigzag and bifacial modules. These corrugation silicon‐based solar cells offer ultraflexibility with high stability over 1000 bending cycles including convex and concave bending to broaden the application spectrum. Finally, the smallest bending radius of curvature lower than 140 µm of the back contacts is shown that carries the solar cells segments.