Free Carrier Emergence and Onset of Electron–Phonon Coupling in Methylammonium Lead Halide Perovskite Films

2017 ◽  
Vol 139 (50) ◽  
pp. 18262-18270 ◽  
Author(s):  
Tufan Ghosh ◽  
Sigalit Aharon ◽  
Lioz Etgar ◽  
Sanford Ruhman
Keyword(s):  
Free Carrier ◽  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Halide Perovskite ◽  
Lead Halide

scholarly journals Strong Carrier–Phonon Coupling in Lead Halide Perovskite Nanocrystals

ACS Nano ◽  
2017 ◽  
Vol 11 (11) ◽  
pp. 11024-11030 ◽  
Author(s):  
Claudiu M. Iaru ◽  
Jaco J. Geuchies ◽  
Paul M. Koenraad ◽  
Daniël Vanmaekelbergh ◽  
Andrei Yu. Silov
Keyword(s):  
Phonon Coupling ◽  
Perovskite Nanocrystals ◽  
Halide Perovskite ◽  
Lead Halide

Harnessing Hot Phonon Bottleneck in Metal Halide Perovskite Nanocrystals via Interfacial Electron–Phonon Coupling

Nano Letters ◽  
2020 ◽  
Vol 20 (6) ◽  
pp. 4610-4617 ◽  
Author(s):  
Zhonghui Nie ◽  
Xuanzhao Gao ◽  
Yinjuan Ren ◽  
Siyang Xia ◽  
Yuhan Wang ◽  
...  
Keyword(s):  
Metal Halide ◽  
Phonon Coupling ◽  
Perovskite Nanocrystals ◽  
Phonon Bottleneck ◽  
Metal Halide Perovskite ◽  
Electron Phonon Coupling ◽  
Halide Perovskite

scholarly journals Electron–phonon coupling in hybrid lead halide perovskites

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Adam D. Wright ◽  
Carla Verdi ◽  
Rebecca L. Milot ◽  
Giles E. Eperon ◽  
Miguel A. Pérez-Osorio ◽  
...  
Keyword(s):  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Halide Perovskites ◽  
Lead Halide

scholarly journals Monitoring hot exciton dissociation in hybrid lead halide perovskite films with sub-10 fs pulses

2019 ◽  
Vol 205 ◽  
pp. 06019
Author(s):  
Tufan Ghosh ◽  
Sigalit Aharon ◽  
Lioz Etgar ◽  
Sanford Ruhman
Keyword(s):  
Optical Band Gap ◽  
Phonon Coupling ◽  
Exciton Dissociation ◽  
Pump Probe ◽  
Spectral Modulation ◽  
Coherent Wave ◽  
Electron Phonon Coupling ◽  
Weak Regime ◽  
Coupling Strengths ◽  
Lead Halide

Sub-10 fs pump-probe experiments on methylammonium lead halide (MAPbI3) perovskite films show hot exciton dissociation in 20 fs after photo-excitation with ~0.7 eV excess energy compared to its optical band gap (BG). Coherent wave packets were also detected in the form of spectral modulation, revealing electron-phonon coupling in these materials. The estimated electron-phonon coupling strengths from the frequency and amplitude of the detected spectral modulation are in the weak regime, suggesting formation of large polaron.

scholarly journals Ultrastable, cationic three-dimensional lead bromide frameworks that intrinsically emit broadband white-light

2018 ◽  
Vol 9 (6) ◽  
pp. 1627-1633 ◽  
Author(s):  
Chengdong Peng ◽  
Zewen Zhuang ◽  
Huimin Yang ◽  
Guiyang Zhang ◽  
Honghan Fei
Keyword(s):  
White Light ◽  
Light Emission ◽  
Three Dimensional ◽  
Intrinsic Property ◽  
Phonon Coupling ◽  
Strong Electron ◽  
Electron Phonon Coupling ◽  
Lead Bromide ◽  
3D Topology ◽  
Lead Halide

We have discovered the first two lead halide materials adopting a purely cationic inorganic 3D topology. The highly distorted PbII centers afford strong electron–phonon coupling in a deformable lattice and unusual broadband white-light emission as an intrinsic property.

scholarly journals Role of Electron–Phonon Coupling in the Thermal Evolution of Bulk Rashba-Like Spin-Split Lead Halide Perovskites Exhibiting Dual-Band Photoluminescence

2019 ◽  
Vol 4 (9) ◽  
pp. 2205-2212 ◽  
Author(s):  
Julian A. Steele ◽  
Pascal Puech ◽  
Bartomeu Monserrat ◽  
Bo Wu ◽  
Ruo Xi Yang ◽  
...  
Keyword(s):  
Thermal Evolution ◽  
Dual Band ◽  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Halide Perovskites ◽  
Lead Halide

Spatially segregated free-carrier and exciton populations in individual lead halide perovskite grains

2017 ◽  
Vol 11 (5) ◽  
pp. 285-288 ◽  
Author(s):  
S. Nah ◽  
B. Spokoyny ◽  
C. Stoumpos ◽  
C. M. M. Soe ◽  
M. Kanatzidis ◽  
...  
Keyword(s):  
Free Carrier ◽  
Halide Perovskite ◽  
Individual Lead ◽  
Lead Halide
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