Recycled Utilization of a Nanoporous Au Electrode for Reduced Fabrication Cost of Perovskite Solar Cells
Recycled Utilization of a Nanoporous Au Electrode for Reduced Fabrication Cost of Perovskite Solar Cells
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DOI：
10.1002/advs.201902474
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发表时间：
2020-01
期刊：
影响因子：
15.1
通讯作者：
Fengjiu Yang;Jinzhe Liu;Zheng Lu;P. Dai;Tomoya Nakamura;Shenghao Wang;Luyang Chen;A. Wakamiya;K. Matsuda
中科院分区：
文献类型：
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作者：
Fengjiu Yang;Jinzhe Liu;Zheng Lu;P. Dai;Tomoya Nakamura;Shenghao Wang;Luyang Chen;A. Wakamiya;K. Matsuda
使用金属电极的超导太阳能电池（PSC）由于其高效率、低制造温度和低成本潜力而被认为是下一代光伏器件的有希望的候选者。然而，金属接触电极的复杂和严格的热沉积过程对于减少商业PSC中的能量回收期仍然是一个具有挑战性的问题，因为接触电极的普遍一次性使用浪费了有限的资源并污染了环境。在这里，纳米多孔Au膜电极制造的一个简单的干转移过程中引入，以取代热蒸发Au电极在PSC。在具有纳米多孔Au膜电极的PSC中展示了19.0%的高功率转换效率（PCE）。此外，电极循环使用超过12次，以实现进一步降低PSC的制造成本和贵金属材料消耗，并防止环境污染。当将纳米多孔Au电极应用于柔性PSC时，在1000次苛刻弯曲测试循环后，实现了17.3%的PCE和98.5%的上级弯曲耐久性。纳米级孔和多孔结构阻止裂纹产生和传播的能力使得纳米多孔Au电极能够被回收并导致优异的弯曲耐久性。
Perovskite solar cells (PSCs) using metal electrodes have been regarded as promising candidates for next‐generation photovoltaic devices because of their high efficiency, low fabrication temperature, and low cost potential. However, the complicated and rigorous thermal deposition process of metal contact electrodes remains a challenging issue for reducing the energy pay‐back period in commercial PSCs, as the ubiquitous one‐time use of a contact electrode wastes limited resources and pollutes the environment. Here, a nanoporous Au film electrode fabricated by a simple dry transfer process is introduced to replace the thermally evaporated Au electrode in PSCs. A high power conversion efficiency (PCE) of 19.0% is demonstrated in PSCs with the nanoporous Au film electrode. Moreover, the electrode is recycled more than 12 times to realize a further reduced fabrication cost of PSCs and noble metal materials consumption and to prevent environmental pollution. When the nanoporous Au electrode is applied to flexible PSCs, a PCE of 17.3% and superior bending durability of ≈98.5% after 1000 cycles of harsh bending tests are achieved. The nanoscale pores and the capability of the porous structure to impede crack generation and propagation enable the nanoporous Au electrode to be recycled and result in excellent bending durability.