The Dual Effect of "Inorganic Fullerene" {Mo132} Doped with SnO2 for Efficient Perovskite-based Photodetectors

2021 ◽  
Author(s):  
Xue-Ying Xu ◽  
Liming Zhang ◽  
Ting Wang ◽  
Yun-Jiang Li ◽  
Tuo Ji ◽  
...  
Keyword(s):  
Electron Transport ◽  
Glass Substrate ◽  
Vital Role ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Dual Effect ◽  
Perovskite Layer ◽  
Inorganic Fullerene ◽  
Conductive Glass ◽  
Photogenerated Electrons

The electron transport layer (ETL) transfers the photogenerated electrons generated by the perovskite layer to the conductive glass substrate, which plays a vital role in the performance of the perovskite-based...

scholarly journals Metal Oxide Compact Electron Transport Layer Modification for Efficient and Stable Perovskite Solar Cells

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2207 ◽  
Author(s):  
Md. Shahiduzzaman ◽  
Shoko Fukaya ◽  
Ersan Y. Muslih ◽  
Liangle Wang ◽  
Masahiro Nakano ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Metal Oxide ◽  
Perovskite Solar Cells ◽  
Clean Energy ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Future Research ◽  
Perovskite Layer ◽  
And Performance

Perovskite solar cells (PSCs) have appeared as a promising design for next-generation thin-film photovoltaics because of their cost-efficient fabrication processes and excellent optoelectronic properties. However, PSCs containing a metal oxide compact layer (CL) suffer from poor long-term stability and performance. The quality of the underlying substrate strongly influences the growth of the perovskite layer. In turn, the perovskite film quality directly affects the efficiency and stability of the resultant PSCs. Thus, substrate modification with metal oxide CLs to produce highly efficient and stable PSCs has drawn attention. In this review, metal oxide-based electron transport layers (ETLs) used in PSCs and their systemic modification are reviewed. The roles of ETLs in the design and fabrication of efficient and stable PSCs are also discussed. This review will guide the further development of perovskite films with larger grains, higher crystallinity, and more homogeneous morphology, which correlate to higher stable PSC performance. The challenges and future research directions for PSCs containing compact ETLs are also described with the goal of improving their sustainability to reach new heights of clean energy production.

scholarly journals High-Performance and Hysteresis-Free Perovskite Solar Cells Based on Rare-Earth-Doped SnO2 Mesoporous Scaffold

Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Qiyao Guo ◽  
Jihuai Wu ◽  
Yuqian Yang ◽  
Xuping Liu ◽  
Zhang Lan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Rare Earth ◽  
Electron Transport ◽  
Charge Transport ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Rare Earth Doping ◽  
Perovskite Layer

Tin oxide (SnO2), as electron transport material to substitute titanium oxide (TiO2) in perovskite solar cells (PSCs), has aroused wide interests. However, the performance of the PSCs based on SnO2 is still hard to compete with the TiO2-based devices. Herein, a novel strategy is designed to enhance the photovoltaic performance and long-term stability of PSCs by integrating rare-earth ions Ln3+ (Sc3+, Y3+, La3+) with SnO2 nanospheres as mesoporous scaffold. The doping of Ln promotes the formation of dense and large-sized perovskite crystals, which facilitate interfacial contact of electron transport layer/perovskite layer and improve charge transport dynamics. Ln dopant optimizes the energy level of perovskite layer, reduces the charge transport resistance, and mitigates the trap state density. As a result, the optimized mesoporous PSC achieves a champion power conversion efficiency (PCE) of 20.63% without hysteresis, while the undoped PSC obtains an efficiency of 19.01%. The investigation demonstrates that the rare-earth doping is low-cost and effective method to improve the photovoltaic performance of SnO2-based PSCs.

scholarly journals Effect of Deposit Au thin Layer Between Layers of Perovskite Solar Cell on Cell's Performance

2021 ◽  
Vol 19 (51) ◽  
pp. 23-32
Author(s):  
Ahmed Ali Assi ◽  
Wasan R. Saleh ◽  
Ezzedin Mohajerani
Keyword(s):  
Solar Cell ◽  
Electron Transport ◽  
Power Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Hole Transport Layer ◽  
Perovskite Layer

The present work aims to fabricate n-i-p forward perovskite solar cell (PSC) withئ structure (FTO/ compact TiO2/ compact TiO2/ MAPbI3 Perovskite/ hole transport layer/ Au). P3HT, CuI and Spiro-OMeTAD were used as hole transport layers. A nano film of 25 nm gold layer was deposited once between the electron transport layer and the perovskite layer, then between the hole transport layer and the perovskite layer. The performance of the forward-perovskite solar cell was studied. Also, the role of each electron transport layer and the hole transport layer in the perovskite solar cell was presented. The structural, morphological and electrical properties were studied with X-ray diffractometer, field emission scanning electron microscope and current-voltage (J-V) characteristic curves, respectively. J-V curves revealed that the deposition of the Au layer between the electron transport layer (ETL) and Perovskite layer (PSK) reduced the power conversion efficiency (PCE) from 3% to 0.08% when one layer of C. TiO2 is deposited in the PSC and to 0.11% with two layers of C. TiO2. Power conversion efficiency, with CuI as the hole transport layer (HTL), showed an increase from 0.5% to 2.7% when Au layer was deposited between PSK and CuI layers. Also, Isc increased from 6.8 mA to 17.4 mA and Voc from 0.3 V to 0.5V. With depositing Au layer between P3HT and PSK layers, the results showed an increase in the efficiency from 1% to 2.6% and an increase in Isc from 10.7 mA to 30.5 mA, while Voc decreased from 0.75 V to 0.5V

Perovskite solar cells with an MoS2 electron transport layer

2019 ◽  
Vol 7 (12) ◽  
pp. 7151-7158 ◽  
Author(s):  
Ranbir Singh ◽  
Anupam Giri ◽  
Monalisa Pal ◽  
Kaliannan Thiyagarajan ◽  
Junghyeok Kwak ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Electron Transport ◽  
Glass Substrate ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Step Process ◽  
One Step ◽  
Fto Glass

MoS2 thin films are directly synthesized over FTO/glass substrate in a one-step process and used as an efficient electron transport layer (ETL) for perovskite solar cells (PSCs).

Enhancing Performance of Perovskite Solar Cells by TiCl4 Treatment on the Surface Roughness of the Titanium Dioxide Layer

2021 ◽  
Vol 21 (7) ◽  
pp. 3806-3812
Author(s):  
Truyen Hai Dang ◽  
Sangmo Kim ◽  
Maro Kim ◽  
Chung Wung Bark
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Perovskite Solar Cells ◽  
Metal Electrode ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Hole Transport Layer ◽  
Perovskite Layer ◽  
And Performance

Perovskite solar cells have been attracting extensive attention because of their superior photovoltaic performances and lower costs as compared to those of prevailing photovoltaic technologies. There are four main interfaces in perovskite solar cells: flourine-doped tin oxide/electron transport layer, electron transport layer/perovskite layer, perovskite layer/hole transport layer, and hole transport layer/metal electrode. Among them, the interface between the perovskite layer (general formula RPbX3) and electron transport layer significantly affects the power conversion efficiency. In this study, a layer of TiO2, which is the most popular metal oxides used for perovskite solar cells applications, was deposited as the electron transport layer. To enhance the perovskite solar cells performance, surface treatment was performed with TiCl4 (80 mM). To investigate the effect of TiCl4 treatment, ultraviolet-visible spectroscopy was performed on the perovskite film. Atomic force microscopy, X-ray diffraction, scanning electron microscopy and performance of perovskite solar cells have been also evaluated in this paper. The results indicated that the TiCl4 treatment significantly improved the perovskite solar cells performance.

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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