| Autor: |
Akbulatov AF; The Institute for Problems of Chemical Physics of the Russian Academy of Sciences (IPCP RAS) , Semenov Prospect 1 , Chernogolovka 142432 , Russia., Frolova LA; The Institute for Problems of Chemical Physics of the Russian Academy of Sciences (IPCP RAS) , Semenov Prospect 1 , Chernogolovka 142432 , Russia.; Center for Energy Science and Technology , Skolkovo Institute of Science and Technology , Nobel Street 3 , Moscow 143026 , Russia., Dremova NN; The Institute for Problems of Chemical Physics of the Russian Academy of Sciences (IPCP RAS) , Semenov Prospect 1 , Chernogolovka 142432 , Russia., Zhidkov I; Institute of Physics and Technology , Ural Federal University , Mira 19 Street , Yekaterinburg 620002 , Russia., Martynenko VM; The Institute for Problems of Chemical Physics of the Russian Academy of Sciences (IPCP RAS) , Semenov Prospect 1 , Chernogolovka 142432 , Russia., Tsarev SA; Center for Energy Science and Technology , Skolkovo Institute of Science and Technology , Nobel Street 3 , Moscow 143026 , Russia., Luchkin SY; Center for Energy Science and Technology , Skolkovo Institute of Science and Technology , Nobel Street 3 , Moscow 143026 , Russia., Kurmaev EZ; Institute of Physics and Technology , Ural Federal University , Mira 19 Street , Yekaterinburg 620002 , Russia.; M. N. Mikheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences , South Kovalevskoi 18 Street , Yekaterinburg 620990 , Russia., Aldoshin SM; The Institute for Problems of Chemical Physics of the Russian Academy of Sciences (IPCP RAS) , Semenov Prospect 1 , Chernogolovka 142432 , Russia., Stevenson KJ; Center for Energy Science and Technology , Skolkovo Institute of Science and Technology , Nobel Street 3 , Moscow 143026 , Russia., Troshin PA; The Institute for Problems of Chemical Physics of the Russian Academy of Sciences (IPCP RAS) , Semenov Prospect 1 , Chernogolovka 142432 , Russia.; Center for Energy Science and Technology , Skolkovo Institute of Science and Technology , Nobel Street 3 , Moscow 143026 , Russia. |
| Abstrakt: |
We report the first systematic assessment of intrinsic photothermal stability of a large panel of complex lead halides APbX 3 incorporating different univalent cations (A = CH 3 NH 3 + , [NH 2 CHNH 2 ] + , Cs + ) and halogen anions (X = Br, I) using a series of analytical techniques such as UV-vis and X-ray photoelectron spectroscopy, X-ray diffraction, EDX analysis, atomic force and scanning electron microscopy, ESR spectroscopy, and mass spectrometry. We show that heat stress and light soaking induce a severe degradation of perovskite films even in the absence of oxygen and moisture. The stability of complex lead halides increases in the order MAPbBr 3 < MAPbI 3 < FAPbI 3 < FAPbBr 3 < CsPbI 3 < CsPbBr 3 , thus featuring all-inorganic perovskites as the most promising absorbers for stable perovskite solar cells. An important correlation was found between the stability of the complex lead halides and the volatility of univalent cation halides incorporated in their structure. The established relationship provides useful guidelines for designing new complex metal halides with immensely improved stability. |
