Defining the role of humidity in the ambient degradation of few-layer black phosphorus

S Walia; Y Sabri; T Ahmed; MR Field; R Ramanathan; A Arash; SK Bhargava; S Sriram; M Bhaskaran; V Bansal; S Balendhran

Journal article

Defining the role of humidity in the ambient degradation of few-layer black phosphorus

S Walia, Y Sabri, T Ahmed, MR Field, R Ramanathan, A Arash, SK Bhargava, S Sriram, M Bhaskaran, V Bansal, S Balendhran

2d Materials | Published : 2017

DOI: 10.1088/2053-1583/4/1/015025

Abstract

Few-layer black phosphorus (BP) is an emerging material of interest for applications in electronics. However, lack of ambient stability is hampering its incorporation in practical devices as it demands for an inert operating environment. Here, we study the individual effects of key environmental factors, such as temperature, light and humidity on the deterioration of BP. It is shown that humidity on its own does not cause material degradation. In fact, few-layer BP is employed as a recoverable humidity sensor. This study eliminates humidity as an active parameter in BP degradation. Hence, by simply isolating BP from light, its lifetime can be prolonged even in the presence of O2. As such, th..

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University of Melbourne Researchers

Shiva Balendhran Author

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Grants

Awarded by Australian Research Council

Funding Acknowledgements

The authors acknowledge support from the Australian Research Council (ARC) with project support through DE150100909 (SB), DE160100023 (MB), and DP140100170 (MB), and equipment funding through LE110100223 and LE150100001. The authors also acknowledge the facilities and technical assistance of the Micro Nano Research Facility.