Fabricating an optimal rutile TiO2 electron transport layer by delicately tuning TiCl4 precursor solution for high performance perovskite solar cells

Nano Energy ◽  
2020 ◽  
Vol 68 ◽  
pp. 104336 ◽  
Author(s):  
Hao Lu ◽  
Junyu Zhong ◽  
Chen Ji ◽  
Junting Zhao ◽  
Dong Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Rutile Tio2

scholarly journals The Influence of the Thickness of Compact TiO2 Electron Transport Layer on the Performance of Planar CH3NH3PbI3 Perovskite Solar Cells

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3295
Author(s):  
Andrzej Sławek ◽  
Zbigniew Starowicz ◽  
Marek Lipiński
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Transport Layer ◽  
Electron Transport Layer

In recent years, lead halide perovskites have attracted considerable attention from the scientific community due to their exceptional properties and fast-growing enhancement for solar energy harvesting efficiency. One of the fundamental aspects of the architecture of perovskite-based solar cells (PSCs) is the electron transport layer (ETL), which also acts as a barrier for holes. In this work, the influence of compact TiO2 ETL on the performance of planar heterojunction solar cells based on CH3NH3PbI3 perovskite was investigated. ETLs were deposited on fluorine-doped tin oxide (FTO) substrates from a titanium diisopropoxide bis(acetylacetonate) precursor solution using the spin-coating method with changing precursor concentration and centrifugation speed. It was found that the thickness and continuity of ETLs, investigated between 0 and 124 nm, strongly affect the photovoltaic performance of PSCs, in particular short-circuit current density (JSC). Optical and topographic properties of the compact TiO2 layers were investigated as well.

Low-temperature interfacial engineering for flexible CsPbI2Br perovskite solar cells with high performance beyond 15%

2020 ◽  
Vol 8 (10) ◽  
pp. 5308-5314 ◽  
Author(s):  
Xia Yang ◽  
Hanjun Yang ◽  
Xiaotian Hu ◽  
Wenting Li ◽  
Zhimin Fang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
High Performance ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Interfacial Engineering ◽  
Doped Zno

High-efficiency flexible CsPbI2Br PSCs are designed by introducing Al-doped ZnO as an electron-transport layer and tert-butyl cyanoacetate as a hole passivation layer. The optimized PSC exhibits outstanding stability and a champion PCE of 15.08%.

Introduction of carbon nanodots into SnO2 electron transport layer for efficient and UV stable planar perovskite solar cells

2019 ◽  
Vol 7 (10) ◽  
pp. 5353-5362 ◽  
Author(s):  
Shuo Wang ◽  
Yu Zhu ◽  
Bao Liu ◽  
Chengyan Wang ◽  
Ruixin Ma
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Carbon Nanodots

The high-performance of planar perovskite solar cells with SnO2:CNDs.

scholarly journals Effects of Cd Diffusion and Doping in High-Performance Perovskite Solar Cells Using CdS as Electron Transport Layer

2016 ◽  
Vol 120 (30) ◽  
pp. 16437-16445 ◽  
Author(s):  
Wiley A. Dunlap-Shohl ◽  
Robert Younts ◽  
Bhoj Gautam ◽  
Kenan Gundogdu ◽  
David B. Mitzi
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer

Materials requirements for improving the electron transport layer/perovskite interface of perovskite solar cells determined via numerical modeling

MRS Advances ◽  
2020 ◽  
Vol 5 (50) ◽  
pp. 2603-2610
Author(s):  
Jared D. Friedl ◽  
Ramez Hosseinian Ahangharnejhad ◽  
Adam B. Phillips ◽  
Michael J. Heben
Keyword(s):  
Numerical Modeling ◽  
Solar Cells ◽  
Electron Transport ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Surface Recombination ◽  
Band Alignment ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Effective Electron

AbstractPerovskite solar cells continue to garner significant attention in the field of photovoltaics. As the optoelectronic properties of the absorbers become better understood, attention has turned to more deeply understanding the contribution of charge transport layers for efficient extraction of carriers. Titanium oxide is known to be an effective electron transport layer (ETL) in planar perovskite solar cells, but it is unlikely to result in the best device performance possible. To investigate the importance of band energy alignment between the electron transport layer and perovskite, we employ numerical modeling as a function of conduction band offset between these layers, interface recombination velocity, and ETL doping levels. Our simulations offer insight into the advantages of energy band alignment and allow us to determine a range of surface recombination velocities and ETL doping densities that will allow us to identify novel high performance ETL materials.

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