scholarly journals Stability of Halide Perovskite Solar Cell Devices: In Situ Observation of Oxygen Diffusion under Biasing

2018 ◽  
Vol 30 (39) ◽  
pp. 1802769 ◽  
Author(s):  
Hee Joon Jung ◽  
Daehan Kim ◽  
Sungkyu Kim ◽  
Joonsuk Park ◽  
Vinayak P. Dravid ◽  
...  
Keyword(s):  
Solar Cell ◽  
Oxygen Diffusion ◽  
Perovskite Solar Cell ◽  
In Situ Observation ◽  
Halide Perovskite

scholarly journals In-situ observation of trapped carriers in organic metal halide perovskite films with ultra-fast temporal and ultra-high energetic resolutions

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Kanishka Kobbekaduwa ◽  
Shreetu Shrestha ◽  
Pan Adhikari ◽  
Exian Liu ◽  
Lawrence Coleman ◽  
...  
Keyword(s):  
Cross Sections ◽  
High Energy ◽  
High Energy Resolution ◽  
In Situ Observation ◽  
Trap States ◽  
Tunneling Mechanism ◽  
Photocurrent Spectroscopy ◽  
Metal Halide Perovskite ◽  
Halide Perovskite

AbstractWe in-situ observe the ultrafast dynamics of trapped carriers in organic methyl ammonium lead halide perovskite thin films by ultrafast photocurrent spectroscopy with a sub-25 picosecond time resolution. Upon ultrafast laser excitation, trapped carriers follow a phonon assisted tunneling mechanism and a hopping transport mechanism along ultra-shallow to shallow trap states ranging from 1.72–11.51 millielectronvolts and is demonstrated by time-dependent and independent activation energies. Using temperature as an energetic ruler, we map trap states with ultra-high energy resolution down to < 0.01 millielectronvolt. In addition to carrier mobility of ~4 cm2V−1s−1 and lifetime of ~1 nanosecond, we validate the above transport mechanisms by highlighting trap state dynamics, including trapping rates, de-trapping rates and trap properties, such as trap density, trap levels, and capture-cross sections. In this work we establish a foundation for trap dynamics in high defect-tolerant perovskites with ultra-fast temporal and ultra-high energetic resolution.

scholarly journals Progress and Challenges on Scaling up of Perovskite Solar Cell Technology

2021 ◽  
Author(s):  
Jin Yan ◽  
Tom J Savenije ◽  
Luana Mazzarella ◽  
Olindo Isabella
Keyword(s):  
Solar Cell ◽  
Scaling Up ◽  
Perovskite Solar Cell ◽  
Metal Halide ◽  
Cell Technology ◽  
Metal Halide Perovskite ◽  
Halide Perovskite ◽  
Solar Cell Technology

Since the first application of a metal halide perovskite (PVK) absorber in a solar cell, these materials have drawn a great deal of attention in the photovoltaic (PV) community, showing...

Molecular interactions and functionalities of organic additive in a perovskite semiconducting device: a case study towards high performance solar cells

2022 ◽  
Author(s):  
Hongkang Gong ◽  
Qi Song ◽  
Chao Ji ◽  
Huimin Zhang ◽  
Chunjun Liang ◽  
...  
Keyword(s):  
Solar Cell ◽  
Amino Acid ◽  
Molecular Interactions ◽  
High Performance ◽  
Perovskite Solar Cell ◽  
Organic Additive ◽  
Acid Hydrochloride ◽  
Halide Perovskite ◽  
Phenylbutyric Acid

A chiral aromatic amino acid, (S)-3-Amino-4-phenylbutyric acid hydrochloride (s-APACl), was employed as an additive to the active layer in a p-i-n organic-inorganic halide perovskite solar cell. This additive led to...

An in situ cross-linked 1D/3D perovskite heterostructure improves the stability of hybrid perovskite solar cells for over 3000 h operation

2020 ◽  
Vol 13 (11) ◽  
pp. 4344-4352
Author(s):  
Ning Yang ◽  
Cheng Zhu ◽  
Yihua Chen ◽  
Huachao Zai ◽  
Chenyue Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Operational Stability ◽  
Hybrid Perovskite ◽  
The Stability

An in situ cross-linked 1D/3D perovskite heterostructure achieved a perovskite solar cell with a 21.19% PCE and operational stability over 3000 hours.

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