Efficient defect passivation of perovskite solar cells via stitching of an organic bidentate molecule

2020 ◽  
Vol 4 (7) ◽  
pp. 3318-3325 ◽  
Author(s):  
Moon-Soo Lee ◽  
Saad Sarwar ◽  
Sunghyeok Park ◽  
Ullah Asmat ◽  
Dao Thi Thuy ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Carrier Lifetime ◽  
Perovskite Solar Cells ◽  
Lewis Base ◽  
Defect Passivation ◽  
Charge Carrier Lifetime

A bidentate Lewis base, pyrazine, acting as an efficient passivation agent to improve the charge-carrier lifetime and the efficiency of perovskite solar cells.

scholarly journals Improved charge carrier lifetime in planar perovskite solar cells by bromine doping

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
David Kiermasch ◽  
Philipp Rieder ◽  
Kristofer Tvingstedt ◽  
Andreas Baumann ◽  
Vladimir Dyakonov
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Carrier Lifetime ◽  
Perovskite Solar Cells ◽  
Charge Carrier Lifetime

scholarly journals Perfection of Perovskite Grain Boundary Passivation by Rhodium Incorporation for Efficient and Stable Solar Cells

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Wei Liu ◽  
Nanjing Liu ◽  
Shilei Ji ◽  
Hongfeng Hua ◽  
Yuhui Ma ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Cation ◽  
Carrier Lifetime ◽  
Perovskite Solar Cells ◽  
State Density ◽  
Halide Anion ◽  
Defect Passivation ◽  
Halide Perovskites ◽  
Ion Incorporation ◽  
Charge Carrier Lifetime

AbstractOrganic cation and halide anion defects are omnipresent in the perovskite films, which will destroy perovskite electronic structure and downgrade the properties of devices. Defect passivation in halide perovskites is crucial to the application of solar cells. Herein, tiny amounts of trivalent rhodium ion incorporation can help the nucleation of perovskite grain and passivate the defects in the grain boundaries, which can improve efficiency and stability of perovskite solar cells. Through first-principle calculations, rhodium ion incorporation into the perovskite structure can induce ordered arrangement and tune bandgap. In experiment, rhodium ion incorporation with perovskite can contribute to preparing larger crystalline and uniform film, reducing trap-state density and enlarging charge carrier lifetime. After optimizing the content of 1% rhodium, the devices achieved an efficiency up to 20.71% without obvious hysteresis, from 19.09% of that pristine perovskite. In addition, the unencapsulated solar cells maintain 92% of its initial efficiency after 500 h in dry air. This work highlights the advantages of trivalent rhodium ion incorporation in the characteristics of perovskite solar cells, which will promote the future industrial application.

Large grained and high charge carrier lifetime CH3NH3PbI3 thin-films: implications for perovskite solar cells

2017 ◽  
Vol 17 (10) ◽  
pp. 1335-1340 ◽  
Author(s):  
Arun Singh Chouhan ◽  
Naga Prathibha Jasti ◽  
Shreyash Hadke ◽  
Srinivasan Raghavan ◽  
Sushobhan Avasthi
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Charge Carrier ◽  
Carrier Lifetime ◽  
Perovskite Solar Cells ◽  
High Charge ◽  
Charge Carrier Lifetime

Efficient Defect Passivation with Niacin for High-Performance and Stable Perovskite Solar Cells

2021 ◽  
Author(s):  
Jing Ren ◽  
Shurong Wang ◽  
Jianxing Xia ◽  
Chengbo Li ◽  
Lisha Xie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Trap States ◽  
Carrier Recombination ◽  
Defect Passivation ◽  
Recombination Centers ◽  
Charge Carrier Recombination ◽  
Halide Perovskite

Defects, inevitably produced in the solution-processed halide perovskite films, can act as charge carrier recombination centers to induce severe energy loss in perovskite solar cells (PSCs). Suppressing these trap states...

Critical roles of potassium in charge-carrier balance and diffusion induced defect passivation for efficient inverted perovskite solar cells

2019 ◽  
Vol 7 (10) ◽  
pp. 5666-5676 ◽  
Author(s):  
Xuewen Yin ◽  
Jianhua Han ◽  
Yu Zhou ◽  
Youchen Gu ◽  
Meiqian Tai ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Perovskite Solar Cells ◽  
Highly Efficient ◽  
Defect Passivation ◽  
And Diffusion

Critical roles of potassium in charge-carrier balance and diffusion induced defect passivation for highly efficient inverted PSCs are revealed.

scholarly journals The Influence of the Base Material Parameters on Quantum and Photoconversion Efficiency of the Si Solar Cells

2016 ◽  
Vol 61 (4) ◽  
pp. 1889-1894 ◽  
Author(s):  
P. Panek
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Charge Carrier ◽  
Effective Charge ◽  
Carrier Lifetime ◽  
Crystalline Silicon ◽  
Base Material ◽  
Photoconversion Efficiency ◽  
Si Solar Cells ◽  
Charge Carrier Lifetime

Abstract The influence of a p-type Si with different resistivity, charge carrier lifetime and emitter dopant impurities concentration on the crystalline silicon solar cells parameters were analyzed and experimentally checked. The findings were determined by quasi-steady-state photoconductance, current-voltage and spectral response methods. The study was accompanied by solar device simulation using a numerical PC1D program. The highest photoconversion efficiency of 15.13 % was obtained for the moncrystalline (Cz-Si) solar cell with a base resistivity of 1.8 Ωcm and an effective charge carrier lifetime of 22.9 μs. The results clearly confirmed the importance concerning the dopant level in a Si base material in relation to open circuit voltage and short circuit current possible to obtain from the solar cell. Reduction of a base material resistivtiy leads to a lower value of an effective charge carrier lifetime and photoconversion efficiency both for Cz-Si and multicrystalline (mc-Si) solar cells. The experimental results and calculation showed, that in the case of a solar cell produced on the basis of crystalline silicon, the most important spectral range for an efficiency of a cell is covering a wavelength range of 587 ÷ 838 nm.

scholarly journals Strontium Insertion in Methylammonium Lead Iodide: Long Charge Carrier Lifetime and High Fill-Factor Solar Cells

2016 ◽  
Vol 28 (44) ◽  
pp. 9839-9845 ◽  
Author(s):  
Daniel Pérez-del-Rey ◽  
Dávid Forgács ◽  
Eline M. Hutter ◽  
Tom J. Savenije ◽  
Dennis Nordlund ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Fill Factor ◽  
Carrier Lifetime ◽  
Lead Iodide ◽  
High Fill Factor ◽  
Methylammonium Lead Iodide ◽  
Charge Carrier Lifetime
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