Relationship between Lattice Strain and Efficiency for Sn-Perovskite Solar Cells

2019 ◽  
Vol 11 (34) ◽  
pp. 31105-31110 ◽  
Author(s):  
Kohei Nishimura ◽  
Daisuke Hirotani ◽  
Muhammad Akmal Kamarudin ◽  
Qing Shen ◽  
Taro Toyoda ◽  
...  
Keyword(s):  
Solar Cells ◽  
Lattice Strain ◽  
Perovskite Solar Cells

Impact of strain relaxation on performance of α-formamidinium lead iodide perovskite solar cells

Science ◽  
2020 ◽  
Vol 370 (6512) ◽  
pp. 108-112 ◽  
Author(s):  
Gwisu Kim ◽  
Hanul Min ◽  
Kyoung Su Lee ◽  
Do Yoon Lee ◽  
So Me Yoon ◽  
...  
Keyword(s):  
Solar Cells ◽  
Lattice Strain ◽  
Urbach Energy ◽  
High Efficiency ◽  
Strain Relaxation ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
Α Phase ◽  
Carrier Trap ◽  
Lead Halide

High-efficiency lead halide perovskite solar cells (PSCs) have been fabricated with α-phase formamidinium lead iodide (FAPbI3) stabilized with multiple cations. The alloyed cations greatly affect the bandgap, carrier dynamics, and stability, as well as lattice strain that creates unwanted carrier trap sites. We substituted cesium (Cs) and methylenediammonium (MDA) cations in FA sites of FAPbI3 and found that 0.03 mol fraction of both MDA and Cs cations lowered lattice strain, which increased carrier lifetime and reduced Urbach energy and defect concentration. The best-performing PSC exhibited power conversion efficiency >25% under 100 milliwatt per square centimeter AM 1.5G illumination (24.4% certified efficiency). Unencapsulated devices maintained >80% of their initial efficiency after 1300 hours in the dark at 85°C.

Divalent hard Lewis acid doped CsPbBr3 films for 9.63%-efficiency and ultra-stable all-inorganic perovskite solar cells

2019 ◽  
Vol 7 (12) ◽  
pp. 6877-6882 ◽  
Author(s):  
Yuanyuan Zhao ◽  
Yudi Wang ◽  
Jialong Duan ◽  
Xiya Yang ◽  
Qunwei Tang
Keyword(s):  
Solar Cells ◽  
Energy Distribution ◽  
Crystal Lattice ◽  
Lewis Acid ◽  
Formation Energy ◽  
Lattice Strain ◽  
Perovskite Solar Cells ◽  
Bandgap Energy ◽  
Inorganic Perovskite

Substitution of Pb2+ sites with smaller isovalent ions is used to optimize the crystal lattice of inorganic CsPbBr3 perovskite through releasing lattice strain, increasing the formation energy of vacancies and tuning the bandgap energy distribution.

Relationship between Relative Lattice Strain and Efficiency for Sn-Perovskite Solar Cells

2019 ◽  
Author(s):  
Shuzi Hayase ◽  
Kohei Nishimura ◽  
Gaurav Kapil ◽  
Chi Huey Ng ◽  
Kengo Hamada ◽  
...  
Keyword(s):  
Solar Cells ◽  
Lattice Strain ◽  
Perovskite Solar Cells

In situ observation of δ phase suppression by lattice strain in all-inorganic perovskite solar cells

Nano Energy ◽  
2020 ◽  
Vol 73 ◽  
pp. 104803 ◽  
Author(s):  
Wei Hui ◽  
Ying Xu ◽  
Fei Xia ◽  
Hui Lu ◽  
Bixin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Lattice Strain ◽  
Perovskite Solar Cells ◽  
In Situ Observation ◽  
Inorganic Perovskite ◽  
Δ Phase

Microstructure and Lattice Strain Control towards High-Performance Ambient Green-Printed Perovskite Solar Cells

2021 ◽  
Author(s):  
junjie fang ◽  
Zicheng Ding ◽  
Xiaoming Chang ◽  
Jing Lu ◽  
Tinghuan Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Lattice Strain ◽  
Perovskite Solar Cells ◽  
Strain Control ◽  
Solution Processed ◽  
Great Progress

Solution-processed perovskite solar cells (PSCs) have made great progress in past years. However, most fabrication methods of PSCs in lab cannot be directly transferred to industrial printing, and the toxic...

A thiourea additive-based quadruple cation lead halide perovskite with an ultra-large grain size for efficient perovskite solar cells

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite ◽  
Halide Perovskite ◽  
Lead Halide

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.

A new class of passivating molecules for perovskite solar cells: preliminary insights.

2020 ◽  
Author(s):  
Lucas Scalon ◽  
Francineide Lopes de Araújo ◽  
Caio Costa Oliveira ◽  
Ana Flávia Nogueira
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
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