scholarly journals Ultrafast Carrier Dynamics at p-n Junction of Cu(In,Ga)Se2- Based Solar Cells Measured by Optical Pump Terahertz Probe Spectroscopy

10.5772/66350 ◽  
2017 ◽  
Author(s):  
Woo-Jung Lee ◽  
Yong-Duck Chung
Keyword(s):  
Solar Cells ◽  
Carrier Dynamics ◽  
Optical Pump ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier ◽  
Probe Spectroscopy

Na-Dependent Ultrafast Carrier Dynamics of CdS/Cu(In,Ga)Se2 Measured by Optical Pump-Terahertz Probe Spectroscopy

2015 ◽  
Vol 119 (35) ◽  
pp. 20231-20236 ◽  
Author(s):  
Woo-Jung Lee ◽  
Dae-Hyung Cho ◽  
Jae-Hyung Wi ◽  
Won Seok Han ◽  
Yong-Duck Chung ◽  
...  
Keyword(s):  
Carrier Dynamics ◽  
Optical Pump ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier ◽  
Probe Spectroscopy

Pump fluence dependence of ultrafast carrier dynamics in InSb measured by optical pump–terahertz probe spectroscopy

2018 ◽  
Vol 57 (33) ◽  
pp. 9729 ◽  
Author(s):  
Gaofang Li ◽  
Wei Zhou ◽  
Wenjie Zhang ◽  
Guohong Ma ◽  
Haoyang Cui ◽  
...  
Keyword(s):  
Carrier Dynamics ◽  
Optical Pump ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier ◽  
Probe Spectroscopy ◽  
Fluence Dependence

scholarly journals Ultrafast carrier dynamics in Ge by ultra-broadband mid-infrared probe spectroscopy

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Tien-Tien Yeh ◽  
Hideto Shirai ◽  
Chien-Ming Tu ◽  
Takao Fuji ◽  
Takayoshi Kobayashi ◽  
...  
Keyword(s):  
Carrier Dynamics ◽  
Mid Infrared ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier ◽  
Probe Spectroscopy

Ultrafast carrier dynamics in GaN epilayers studied by femtosecond pump-probe spectroscopy

1999 ◽  
Author(s):  
Arthur J. Fischer ◽  
Brian D. Little ◽  
Theodore J. Schmidt ◽  
Chan-Kyung Choi ◽  
Jin-Joo Song ◽  
...  
Keyword(s):  
Carrier Dynamics ◽  
Pump Probe ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier ◽  
Probe Spectroscopy

scholarly journals Phase segregation in mixed-halide perovskites affects charge-carrier dynamics while preserving mobility

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Silvia G. Motti ◽  
Jay B. Patel ◽  
Robert D. J. Oliver ◽  
Henry J. Snaith ◽  
Michael B. Johnston ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Management Strategies ◽  
Phase Segregation ◽  
Carrier Dynamics ◽  
Optical Pump ◽  
Charge Carrier Dynamics ◽  
Halide Perovskites ◽  
Probe Spectroscopy ◽  
The Impact

AbstractMixed halide perovskites can provide optimal bandgaps for tandem solar cells which are key to improved cost-efficiencies, but can still suffer from detrimental illumination-induced phase segregation. Here we employ optical-pump terahertz-probe spectroscopy to investigate the impact of halide segregation on the charge-carrier dynamics and transport properties of mixed halide perovskite films. We reveal that, surprisingly, halide segregation results in negligible impact to the THz charge-carrier mobilities, and that charge carriers within the I-rich phase are not strongly localised. We further demonstrate enhanced lattice anharmonicity in the segregated I-rich domains, which is likely to support ionic migration. These phonon anharmonicity effects also serve as evidence of a remarkably fast, picosecond charge funnelling into the narrow-bandgap I-rich domains. Our analysis demonstrates how minimal structural transformations during phase segregation have a dramatic effect on the charge-carrier dynamics as a result of charge funnelling. We suggest that because such enhanced recombination is radiative, performance losses may be mitigated by deployment of careful light management strategies in solar cells.

Insights into Ultrafast Carrier Dynamics in Perovskite Thin Films and Solar Cells

ACS Photonics ◽  
2020 ◽  
Vol 7 (8) ◽  
pp. 1893-1907 ◽  
Author(s):  
Chengbo Li ◽  
Aili Wang ◽  
Xiaoyu Deng ◽  
Shurong Wang ◽  
Yuan Yuan ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Carrier Dynamics ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier

scholarly journals Ultrafast carrier dynamics in Cu(In,Ga)Se_2 thin films probed by femtosecond pump-probe spectroscopy

2012 ◽  
Vol 20 (12) ◽  
pp. 12675 ◽  
Author(s):  
Shih-Chen Chen ◽  
Yu-Kuang Liao ◽  
Hsueh-Ju Chen ◽  
Chia-Hsiang Chen ◽  
Chih-Huang Lai ◽  
...  
Keyword(s):  
Thin Films ◽  
Carrier Dynamics ◽  
Pump Probe ◽  
Ultrafast Carrier Dynamics ◽  
Ultrafast Carrier ◽  
Probe Spectroscopy

scholarly journals Investigating ultrafast carrier dynamics in perovskite solar cells with an extended π-conjugated polymeric diketopyrrolopyrrole layer for hole transportation

RSC Advances ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 6618-6624
Author(s):  
Chandramouli Kulshreshtha ◽  
Arul Clement ◽  
Torbjörn Pascher ◽  
Villy Sundström ◽  
Piotr Matyba
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Organic Semiconductor ◽  
Perovskite Solar Cells ◽  
Carrier Dynamics ◽  
Hole Transport ◽  
Ultrafast Carrier Dynamics ◽  
Charge Carrier Dynamics ◽  
Ultrafast Carrier

Diketopyrrole based hole-transport organic semiconductor was employed in perovskite solar cells and charge carrier dynamics was explained.

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