Improved Moisture Stability of 2D Hybrid Perovskite (HOOC–CH2–NH3)2PbI4 by Dehydration Condensation between Organic Components
Source abstract
Abstract
In this work, a one-step solution-processing approach was purposed and demonstrated for the dehydration condensation between the organic components of 2D hybrid perovskite (HOOC–CH2–NH3)2PbI4 (abbreviated as Gly2PbI4). The novel product obtained after condensation (labeled as Gly2PbI4-DCC) shows greatly enhanced stability without any obvious degradation in the accelerated moisture-tolerance test. XPS reveals the strong covalent bonds formed between the adjacent −COOH and −NH3+ terminal groups. XRD, SEM, TEM, and moisture-tolerance test results show that the change from noncovalent interactions to covalent interactions helps the 2D hybrid perovskite to resist the intrusion of moisture, as well as facilitates the growth of smooth and uniform films. This work sheds light on the moisture stability problem of organic–inorganic hybrid perovskites.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Gas Sensing Nanomaterials and Sensors · Conducting polymers and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
National Synchrotron Radiation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, University of Science and Technology of China, Hefei 230029, China
CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
Funding
Ministry of Science and Technology of the People's Republic of China · Ministry of Education of the People's Republic of China · National Natural Science Foundation of China · Chinese Academy of Sciences · Key Laboratory of Energy Conversion Materials, Chinese Academy of Sciences
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