scholarly journals An easy-to-fabricate low-temperature TiO2 electron collection layer for high efficiency planar heterojunction perovskite solar cells

APL Materials ◽  
2014 ◽  
Vol 2 (8) ◽  
pp. 081505 ◽  
Author(s):  
B. Conings ◽  
L. Baeten ◽  
T. Jacobs ◽  
R. Dera ◽  
J. D’Haen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Electron Collection ◽  
Planar Heterojunction

scholarly journals Effect of SnO2 Colloidal Dispersion Solution Concentration on the Quality of Perovskite Layer of Solar Cells

Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 591
Author(s):  
Keke Song ◽  
Xiaoping Zou ◽  
Huiyin Zhang ◽  
Chunqian Zhang ◽  
Jin Cheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Efficiency ◽  
Surface Condition ◽  
Perovskite Solar Cells ◽  
Colloidal Dispersion ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Perovskite Layer ◽  
Dispersion Solution

The electron transport layer (ETL) is critical to carrier extraction for perovskite solar cells (PSCs). Moreover, the morphology and surface condition of the ETL could influence the topography of the perovskite layer. ZnO, TiO2, and SnO2 were widely investigated as ETL materials. However, TiO2 requires a sintering process under high temperature and ZnO has the trouble of chemical instability. SnO2 possesses the advantages of low-temperature fabrication and high conductivity, which is critical to the performance of PSCs prepared under low temperature. Here, we optimized the morphology and property of SnO2 by modulating the concentration of a SnO2 colloidal dispersion solution. When adjusting the concentration of SnO2 colloidal dispersion solution to 5 wt.% (in water), SnO2 film indicated better performance and the perovskite film has a large grain size and smooth surface. Based on high efficiency (16.82%), the device keeps a low hysteresis index (0.23).

High-Efficiency Low-Temperature ZnO Based Perovskite Solar Cells Based on Highly Polar, Nonwetting Self-Assembled Molecular Layers

2017 ◽  
Vol 8 (5) ◽  
pp. 1701683 ◽  
Author(s):  
Randi Azmi ◽  
Wisnu Tantyo Hadmojo ◽  
Septy Sinaga ◽  
Chang-Lyoul Lee ◽  
Sung Cheol Yoon ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Self Assembled ◽  
Molecular Layers

Scalable Processing of Low-Temperature TiO2 Nanoparticles for High-Efficiency Perovskite Solar Cells

2018 ◽  
Vol 2 (1) ◽  
pp. 47-58 ◽  
Author(s):  
Ihteaz M. Hossain ◽  
Damien Hudry ◽  
Florian Mathies ◽  
Tobias Abzieher ◽  
Somayeh Moghadamzadeh ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Tio2 Nanoparticles ◽  
High Efficiency ◽  
Perovskite Solar Cells

15% efficient carbon based planar-heterojunction perovskite solar cells using a TiO2/SnO2bilayer as the electron transport layer

2018 ◽  
Vol 6 (17) ◽  
pp. 7409-7419 ◽  
Author(s):  
Zhiyong Liu ◽  
Bo Sun ◽  
Xingyue Liu ◽  
Jinghui Han ◽  
Haibo Ye ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Planar Heterojunction ◽  
Carbon Based

Low-temperature printable carbon based planar-heterojunction perovskite solar cells with efficiencies exceeding 15% were demonstrated by using a TiO2/SnO2bilayer as ETL together with CuPc as HTL.

scholarly journals Boosting efficiency of planar heterojunction perovskite solar cells by a low temperature TiCl4 treatment

2018 ◽  
Vol 08 (02) ◽  
pp. 1850009
Author(s):  
Enqi Wang ◽  
Peng Chen ◽  
Xingtian Yin ◽  
Bowen Gao ◽  
Wenxiu Que
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Surface Defects ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Trap States ◽  
Control Devices ◽  
Planar Heterojunction ◽  
Better Than

It is well known that electron transport layer (ETL) plays an indispensable role in the planar heterojunction perovskite solar cells (PSCs). TiO2 is widely used as an ETL material due to its excellent transport properties, however, the presence of defects in the TiO2 layer diminishes the power conversion efficiency (PCE) of the devices. Herein, we introduce a method of low-temperature TiCl4 treatment to deposit a TiOx layer on the surface of TiO2 film, which can effectively passivate trap states at the TiO2 surface. Moreover, the treating process is optimized to be 30[Formula: see text]min using a 40[Formula: see text]mM TiCl4 aqueous solution. Benefiting from this, we obtain the champion device with the highest PCE of 18.47%, which is mainly due to the reduction of surface defects and the deposition of the well-crystallized perovskite films. Besides, the modified PSCs exhibit an average PCE of 17.59%, which is much better than the control devices.

High Efficiency Low-Temperature Processed Perovskite Solar Cells Integrated with Alkali Metal Doped ZnO Electron Transport Layers

2018 ◽  
Vol 3 (6) ◽  
pp. 1241-1246 ◽  
Author(s):  
Randi Azmi ◽  
Sunbin Hwang ◽  
Wenping Yin ◽  
Tae-Wook Kim ◽  
Tae Kyu Ahn ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Alkali Metal ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Doped Zno ◽  
Metal Doped
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