Back to Search
Start Over
Aqueous phase fabrication and conversion of Pb(OH)Br into a CH3NH3PbBr3 perovskite and its application in resistive memory switching devices.
- Source :
- Green Chemistry; 6/7/2020, Vol. 22 Issue 11, p3608-3614, 7p
- Publication Year :
- 2020
-
Abstract
- Organometal halide perovskites (OMHPs) have shown promising applications in solar cells, light-emitting diodes, and photodetectors. However, besides the toxic lead, the intensive usage of organic solvents during their fabrication could induce severe environmental pollution. Therefore, green-solvent fabrication of OMHPs is highly desirable but extremely challenging. Herein, we report aqueous phase fabrication and conversion of laurionite-type Pb(OH)Br into CH<subscript>3</subscript>NH<subscript>3</subscript>PbBr<subscript>3</subscript>. The prepared CH<subscript>3</subscript>NH<subscript>3</subscript>PbBr<subscript>3</subscript> crystals show prominently enhanced environmental and thermal stability compared to those prepared in organic phases. To demonstrate the application of the prepared CH<subscript>3</subscript>NH<subscript>3</subscript>PbBr<subscript>3</subscript>, a resistive switching memory device (ReRAM) is fabricated. The ReRAM devices exhibit good bipolar non-volatile characteristics that can remain unchanged for more than 30 days under ambient conditions. We believe that the aqueous phase-based green fabrication process of OMHPs will not only greatly alleviate the environmental pollution during or after their commercialization process, but will also provide a new concept in stabilizing and improving the performance of OMHP-based devices. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14639262
- Volume :
- 22
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Green Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 143652320
- Full Text :
- https://doi.org/10.1039/d0gc00878h