Low-temperature photochemical activation of sol-gel titanium dioxide films for efficient planar heterojunction perovskite solar cells

2018 ◽  
Vol 735 ◽  
pp. 224-233 ◽  
Author(s):  
Like Huang ◽  
Jie Xu ◽  
Xiaoxiang Sun ◽  
Chang Li ◽  
Rui Xu ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Solar Cells ◽  
Low Temperature ◽  
Sol Gel ◽  
Perovskite Solar Cells ◽  
Titanium Dioxide Films ◽  
Planar Heterojunction ◽  
Photochemical Activation

scholarly journals MAPbI3 Incorporated with Carboxyl Group Chelated Titania for Planar Perovskite Solar Cells in Low-Temperature Process

Nanomaterials ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 908 ◽  
Author(s):  
Pei-Shan Li ◽  
Rathinam Balamurugan ◽  
Bo-Tau Liu ◽  
Rong-Ho Lee ◽  
Hsueh-Tao Chou
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Sol Gel ◽  
Perovskite Solar Cells ◽  
Heterojunction Solar Cells ◽  
Photoelectrical Properties ◽  
Temperature Solution ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction ◽  
Low Temperature Process

Low-temperature, solution-processed, highly efficient hybrid organic/inorganic perovskite planar heterojunction solar cells were fabricated by incorporating reactive crystalline titania (h-TAc) into MAPbI3 layers. The h-TAc was prepared by the sol-gel reaction at low temperature followed by solvothermal treatment. The photoelectrical properties of the solar cells with h-TAc were analyzed. The incorporation with 0.85-wt% h-TAc showed the highest power conversion efficiency (PCE, 15.9%), increasing 69% compared to the pristine cell. The enhancement arose from large-grained microstructures, leading to a low rate of charge recombination. The carboxyl groups chelated on the surface of h-TAc revealed a strong attraction to lead ions, which are significantly helpful to MAPbI3 crystal growth.

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.

Toward an alternative approach for the preparation of low-temperature titanium dioxide blocking underlayers for perovskite solar cells

2019 ◽  
Vol 7 (17) ◽  
pp. 10729-10738 ◽  
Author(s):  
Su Htike Aung ◽  
Lichen Zhao ◽  
Kazuteru Nonomura ◽  
Than Zaw Oo ◽  
Shaik M. Zakeeruddin ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Solar Cells ◽  
Low Temperature ◽  
Titanium Oxide ◽  
Perovskite Solar Cells ◽  
Alternative Technique ◽  
Electrodeposition Method ◽  
Alternative Approach ◽  
Anodic Electrodeposition

The anodic electrodeposition method is investigated as an alternative technique for the preparation of a titanium oxide blocking underlayer for perovskite solar cells.

Low temperature processed planar heterojunction perovskite solar cells employing silver nanowires as top electrode

2016 ◽  
Vol 369 ◽  
pp. 308-313 ◽  
Author(s):  
Jianhua Zhang ◽  
Fushan Li ◽  
Kaiyu Yang ◽  
Chandrasekar Perumal Veeramalai ◽  
Tailiang Guo
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Silver Nanowires ◽  
Perovskite Solar Cells ◽  
Planar Heterojunction

scholarly journals ZrSnO4: A Solution-Processed Robust Electron Transport Layer of Efficient Planar-Heterojunction Perovskite Solar Cells

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3090
Author(s):  
Jun Choi ◽  
Young Ki Park ◽  
Hee Dong Lee ◽  
Seok Il Hong ◽  
Woosung Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Electron Transport ◽  
Sol Gel ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Ambient Atmosphere ◽  
Solution Processed ◽  
Planar Heterojunction

A robust electron transport layer (ETL) is an essential component in planar-heterojunction perovskite solar cells (PSCs). Herein, a sol-gel-driven ZrSnO4 thin film is synthesized and its optoelectronic properties are systematically investigated. The optimized processing conditions for sol-gel synthesis produce a ZrSnO4 thin film that exhibits high optical transmittance in the UV-Vis-NIR range, a suitable conduction band maximum, and good electrical conductivity, revealing its potential for application in the ETL of planar-heterojunction PSCs. Consequently, the ZrSnO4 ETL-based devices deliver promising power conversion efficiency (PCE) up to 19.05% from CH3NH3PbI3-based planar-heterojunction devices. Furthermore, the optimal ZrSnO4 ETL also contributes to decent long-term stability of the non-encapsulated device for 360 h in an ambient atmosphere (T~25 °C, RH~55%,), suggesting great potential of the sol-gel-driven ZrSnO4 thin film for a robust solution-processed ETL material in high-performance PSCs.

Efficient planar-heterojunction perovskite solar cells achieved via interfacial modification of a sol–gel ZnO electron collection layer

2014 ◽  
Vol 2 (41) ◽  
pp. 17291-17296 ◽  
Author(s):  
Junghwan Kim ◽  
Geunjin Kim ◽  
Tae Kyun Kim ◽  
Sooncheol Kwon ◽  
Hyungcheol Back ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion ◽  
Sol Gel ◽  
Perovskite Solar Cells ◽  
Interfacial Engineering ◽  
Electron Collection ◽  
Interfacial Modification ◽  
New Strategy ◽  
Planar Heterojunction ◽  
Conversion Efficiencies

The importance of interfacial engineering as a new strategy for improving the power conversion efficiencies (PCEs) of planar-heterojunction (PHJ) perovskite solar cells is highlighted by incorporating sol–gel ZnO modified with PCBM.

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