Optimum silver contact sputtering parameters for efficient perovskite solar cell fabrication
Optimum silver contact sputtering parameters for efficient perovskite solar cell fabrication
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DOI：
10.1016/j.solmat.2021.111185
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发表时间：
2021-09
影响因子：
6.9
通讯作者：
M. Eze;Godwin N. Ugwuanyi;Meng Li;Hyginus U. Eze;G. Rodríguez;A. Evans;V. G. Rocha;Zhe Li
中科院分区：
文献类型：
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作者：
M. Eze;Godwin N. Ugwuanyi;Meng Li;Hyginus U. Eze;G. Rodríguez;A. Evans;V. G. Rocha;Zhe Li
由于磁控溅射过程中高动能粒子对有机空穴传输层的破坏，限制了磁控溅射在钙钛矿型太阳电池中沉积金属电极的应用。本文系统地研究了溅射功率、气体流量、溅射时间和气压对钙钛矿型电池性能的影响。研究结果表明，采用磁控溅射法制备的镀液法制备的银接触型钙钛矿太阳能电池的功率转换效率高达18.35%。器件的短路电流密度为22.56 mA/cm2，开路电压为1.10 mV，填充系数为73.7%。研究表明，溅射功率是最关键的因素，需要仔细控制，以将对空穴传输层的损害降至最低。这项研究表明，如果优化溅射参数，利用磁控溅射可以制备出高效率的钙钛矿型太阳能电池。
The use of magnetron sputtering for deposition of the metal electrode in perovskite solar cells has been limited because of the damage to the organic hole transport layer by high kinetic energy particles during the sputtering process. In this paper, a systematic investigation into the effect of sputtering power, argon flow rate, sputtering duration, and argon pressure on the performance of the perovskite cells was conducted. The results of this work show that high power conversion efficiency of 18.35% was obtained for solution-processed, air-fabricated perovskite solar cells with Ag contact prepared using magnetron sputtering. The devices also exhibit an excellent short-current density of 22.56 mA/cm2, an open-circuit voltage of 1.10 V and a fill factor of 73.7%. The investigation reveals that sputtering power is the most critical factor that needs to be carefully controlled to minimise the damage to the hole transport layer. This study demonstrates that highly efficient perovskite solar cells can be fabricated using magnetron sputtering if the sputtering parameters are optimised.