Presentation Information
[21a-D903-8]Inverstigation of the hydrogen evolution of perovskite solar cells with the annealed MoO3 layer
〇Ryotaro Fujita1, Rin Kawanabe1, Yudai Kikuchi1, Keito Hisatsune1, Yuto Komazawa1, Shinsuke Miyajima2, Takurou Murakami3, Atsushi Kogo3, Shiro Uchida1 (1.Chiba Inst, 2.Tokyo Tech, 3.AIST)
Keywords:
hydrogen evolution,perovskite solar cells
In recent years, hydrogen has attracted attention as a new energy source. To obtain the optimum operating voltage for the water-splitting cell, a transparent conductive film such as ITO is essential for the perovskite (PVK)/Si tandem solar cell to capture sunlight from the PVK side. It is necessary to deposit MoO3 on the hole transport layer as a protective film against sputter damage during ITO deposition. The final goal is to fabricate PVK/Si tandem solar cells. As a preliminary step, we deposited MoO3 on perovskite solar cells (PSC) and evaluated its functionality as a protective film by annealing and hydrogen production experiments were conducted by irradiating the cells for 60 minutes under simulated sunlight. The conversion efficiency after MoO3 deposition was very low, but increased to 12.0 % by annealing treatment. The solar hydrogen energy conversion efficiency STH (solar to hydrogen) obtained in this experiment was 2.4 %.