Thermal degradation of CH3NH3PbI3 perovskite into NH3 and CH3I gases observed by coupled thermogravimetry–mass spectrometry analysis

By Emilio J. Juarez-Perez, Zafer Hawash, Sonia R. Raga, L. Ono, Y. Qi. 2016

434 citations recorded by the source corpus.

Thermal gravimetric and differential thermal analysis (TG-DTA) coupled with quadrupole mass spectrometry (MS) and first principles calculations were employed to elucidate the chemical nature of released gases during the thermal decomposition of CH3NH3PbI3. In contrast to the common wisdom that CH3NH3PbI3 is decomposed into CH3NH2 and HI, the major gases were methyliodide (CH3I) and ammonia (NH3). We anticipate that our findings will provide new insights into further formulations of the perovskite active material and device design that can prevent methylammonium decomposition and thus increase the long-term stability of perovskite-based optoelectronic devices.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/b2f5c86f33ad875159ac643f6b18f7e39968acca

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

1. A. Hagfeldt
2. Michael Saliba
3. Silver‐Hamill Turren‐Cruz
4. Abdullah Al Mamun
5. S. Marsillac
6. G. Namkoong
7. T. T. Ava
8. M. Graetzel

In Materials Chemistry

1. A. Hagfeldt
2. Michael Saliba
3. Abdullah Al Mamun
4. S. Marsillac
5. G. Namkoong
6. T. T. Ava
7. M. Graetzel

Citations in the corpus

• A Review: Thermal Stability of Methylammonium Lead Halide Based Perovskite Solar Cells (2019, background): “It is proposed that the first mass loss step during the thermal degradation of CH3NH3PbI3 and CH3NH3I under an inert atmosphere proceeds as [39]:”