scholarly journals A Review on Emerging Efficient and Stable Perovskite Solar Cells Based on g-C3N4 Nanostructures

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1679
Author(s):  
Konstantina Gkini ◽  
Ioanna Martinaiou ◽  
Polycarpos Falaras
Keyword(s):  
Solar Cells ◽  
Carbon Nitride ◽  
Perovskite Solar Cells ◽  
Graphitic Carbon ◽  
Transport Layer ◽  
Fine Tuning ◽  
Graphitic Carbon Nitride ◽  
Electron Transport Layer ◽  
Significant Performance ◽  
Stability Enhancement

Perovskite solar cells (PSCs) have attracted great research interest in the scientific community due to their extraordinary optoelectronic properties and the fact that their power conversion efficiency (PCE) has increased rapidly in recent years, surpassing other 3rd generation photovoltaic (PV) technologies. Graphitic carbon nitride (g-C3N4) presents exceptional optical and electronic properties and its use was recently expanded in the field of PSCs. The addition of g-C3N4 in the perovskite absorber and/or the electron transport layer (ETL) resulted in PCEs exceeding 22%, mainly due to defects passivation, improved conductivity and crystallinity as well as low charge carriers’ recombination rate within the device. Significant performance increase, including stability enhancement, was also achieved when g-C3N4 was applied at the PSC interfaces and the observed improvement was attributed to its wetting (hydrophobic/hydrophilic) nature and the fine tuning of the corresponding interface energetics. The current review summarizes the main innovations for the incorporation of graphitic carbon nitride in PSCs and highlights the significance and perspectives of the g-C3N4 approach for emerging highly efficient and robust PV devices.

scholarly journals A two-fold engineering approach based on Bi2Te3 flakes towards efficient and stable inverted perovskite solar cells

2020 ◽  
Vol 1 (3) ◽  
pp. 450-462 ◽  
Author(s):  
Dimitris Tsikritzis ◽  
Konstantinos Rogdakis ◽  
Konstantinos Chatzimanolis ◽  
Miloš Petrović ◽  
Nikos Tzoganakis ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Bismuth Telluride ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Engineering Approach ◽  
Stability Enhancement

An engineering approach is implemented for the performance and stability enhancement of perovskite solar cells, through the incorporation of bismuth telluride flakes in the electron transport layer (ETL) and as an interlayer on top of the ETL.

scholarly journals La-doped BaSnO3 electron transport layer for perovskite solar cells

2018 ◽  
Vol 6 (45) ◽  
pp. 23071-23077 ◽  
Author(s):  
Chang Woo Myung ◽  
Geunsik Lee ◽  
Kwang S. Kim
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Uv Light ◽  
Perovskite Solar Cells ◽  
Band Alignment ◽  
Transport Layer ◽  
Fine Tuning ◽  
Electron Transport Layer ◽  
La Doped ◽  
The Ideal

Recently, La-doped BaSnO3 (LBSO) electron transport layer for perovskite solar cells has been introduced to replace TiO2 which is susceptible to UV light. This paper unveils the key mechanism for the ideal band alignment between LBSO and MAPbI3. The amount of La dopant in LBSO is crucial for the fine tuning of the conduction band level of LBSO.

Stability enhancement of inverted perovskite solar cells using LiF in electron transport layer

2020 ◽  
Vol 80 ◽  
pp. 105613
Author(s):  
Dawei Tan ◽  
Xuejing Zhang ◽  
Xiao Liu ◽  
Hongmei Zhang ◽  
Dongge Ma
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Stability Enhancement

scholarly journals Interfacial stabilization for inverted perovskite solar cells with long-term stability

2020 ◽  
Author(s):  
Zhubing He ◽  
Wei Chen ◽  
Bing Han ◽  
Qin Hu ◽  
Meng Gu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Metal Electrode ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Ion Migration ◽  
Long Term Stability ◽  
Significant Performance ◽  
Charge Transport Layer ◽  
Visual Element

Abstract Perovskite solar cells (PSCs) commonly exhibit significant performance degradation due to ion migration through the top charge transport layer and ultimately metal electrode corrosion. Here, we demonstrate an interfacial management strategy using a boron chloride subphthalocyanine (Cl6SubPc)/fullerene electron-transport layer, which not only passivates the interfacial defects in the perovskite, but also suppresses halide diffusion as evidenced by multiple techniques, including visual element mapping by electron energy loss spectroscopy. As a result, we obtain inverted PSCs with an efficiency of 22.0% (21.3% certified), shelf life of 7000 hours, T80 of 816 h under damp heat stress (compared to less than 20 h without Cl6SubPc), and initial performance retention of 98% after 2000 hours at 80 oC in inert environment, 90% after 2034 h of illumination and MPP tracking in ambient for encapsulated devices and 95% after 1272 h outdoor testing ISOS-O-1, which is among the top device performance for the inverted PSCs.

scholarly journals Ultrathin and compact electron transport layer made from novel water-dispersed Fe3O4 nanoparticles to accomplish UV-stable perovskite solar cells

2021 ◽  
Author(s):  
Song Fang ◽  
Bo Chen ◽  
Bangkai Gu ◽  
Linxing Meng ◽  
Hao Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Electron Transport ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Perovskite Material ◽  
Main Factors ◽  
Induced Decomposition

UV induced decomposition of perovskite material is one of main factors to severely destroy perovskite solar cells for instability. Here we report a UV stable perovskite solar cell with a...

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