Prospects of e-beam evaporated molybdenum oxide as a hole transport layer for perovskite solar cells

Ali, F. and Khoshsirat, N. and Lipton-Duffin, J. and Wang, H. and Ostrikov, K. and Bell, J. M. and Tesfamichael, T. (2017) Prospects of e-beam evaporated molybdenum oxide as a hole transport layer for perovskite solar cells. Journal of Applied Physics, 122 (12):123105. ISSN 0021-8979


Perovskite solar cells have emerged as one of the most efficient and low cost technologies for delivering of solar electricity due to their exceptional optical and electrical properties. Commercialization of the perovskite solar cells is, however, limited because of the higher cost and environmentally sensitive organic hole transport materials such as spiro-OMETAD and PEDOT:PSS. In this study, an empirical simulation was performed using the Solar Cell Capacitance Simulator software to explore the MoOx thin film as an alternative hole transport material for perovskite solar cells. In the simulation, properties of MoOx thin films deposited by the electron beam evaporation technique from high purity (99.99%) MoO3 pellets at different substrate temperatures (room temperature, 100 °C and 200 °C) were used as input parameters. The films were highly transparent (>80%) and have low surface roughness (≤2 nm) with bandgap energy ranging between 3.75 eV and 3.45 eV. Device simulation has shown that the MoOx deposited at room temperature can work in both the regular and inverted structures of the perovskite solar cell with a promising efficiency of 18.25%. Manufacturing of the full device is planned in order to utilize the MoOx as an alternative hole transport material for improved performance, good stability, and low cost of the perovskite solar cell.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 22 Sep 2020 23:50
Last Modified: 24 Sep 2020 06:19
Uncontrolled Keywords: organometal halide perovskites; spray-pyrolysis technique; thin-films; substrate-temperature; optical-properties; high-performance; photochromic properties; back contact; gas sensors; MOO3 films
Fields of Research (2008): 03 Chemical Sciences > 0399 Other Chemical Sciences > 039999 Chemical Sciences not elsewhere classified
Fields of Research (2020): 34 CHEMICAL SCIENCES > 3499 Other chemical sciences > 349999 Other chemical sciences not elsewhere classified
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