Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 6, Issue 38, Pages 10121-10137Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8tc03164a
Keywords
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Funding
- National Basic Research Program of China
- Fundamental Studies of Perovskite Solar Cells [2015CB932200]
- Natural Science Foundation of China [51322202]
- Young 1000 Talents Global Recruitment Program of China
- Jiangsu Specially-Appointed Professor program
- Nanjing Tech University
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Metal halide perovskites have been intensively studied over the past years due to their attractive electronic, optical and optoelectronic properties. In spite of the phenomenally high solar-conversion efficiency achieved with perovskites, their adverse instability remains the key obstacle restricting their wider applications. These ionic crystals can be affected by many factors, such as varied temperatures, humid air, polar solvents, and electron-withdrawing/donating gases. However, under certain controlled conditions, changes in perovskite structures/compositions via, for example, phase transitions, hydration/dehydration, gas adsorption/desorption, and ion intercalation/decalation, can all be reversed, suggesting their great potential for sensing applications. In this contribution, we first overview recent investigations and mechanistic studies on the stability of metal halide perovskites under various environmental conditions. Then, we highlight the recent attempts to apply perovskites for the detection of temperature change, humidity, gases, solvents and ions. Finally, we discuss current challenges and future opportunities for developing sensing systems based on metal halide perovskites.
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