Effect of Annealing Temperature on Film Morphology of Planar Heterojunction Mixed Halide Perovskite CH3NH3PbI3−xClx Solar Cells Based on Compact ZnO

2015 ◽  
Vol 44 (7) ◽  
pp. 1022-1024 ◽  
Author(s):  
Shude Zhang ◽  
Xiaomin Li ◽  
Xiangdong Gao ◽  
Lei Lei ◽  
Xukun Ding ◽  
...  
2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Dan Chen ◽  
Xiaoping Zou ◽  
Hong Yang ◽  
Ningning Zhang ◽  
Wenbin Jin ◽  
...  

The morphology of compact TiO2 film used as an electron-selective layer and perovskite film used as a light absorption layer in planar perovskite solar cells has a significant influence on the photovoltaic performance of the devices. In this paper, the spin coating speed of the compact TiO2 is investigated in order to get a high-quality film and the compact TiO2 film exhibits pinhole- and crack-free films treated by 2000 rpm for 60 s. Furthermore, the effect of annealing process, including annealing temperature and annealing program, on CH3NH3PbI3-XClX film morphology is studied. At the optimal annealing temperature of 100°C, the CH3NH3PbI3-XClX morphology fabricated by multistep slow annealing method has smaller grain boundaries and holes than that prepared by one-step direct annealing method, which results in the reduction of grain boundary recombination and the increase of Voc. With all optimal procedures, a planar fluorine-doped tin oxide (FTO) substrate/compact TiO2/CH3NH3PbI3-XClX/Spiro-MeOTAD/Au cell is prepared for an active area of 0.1 cm2. It has achieved a power conversion efficiency (PCE) of 14.64%, which is 80.3% higher than the reference cell (8.12% PCE) without optimal perovskite layer. We anticipate that the annealing process with optimal compact TiO2 layer would possibly become a promising method for future industrialization of planar perovskite solar cells.


2018 ◽  
Vol 192 ◽  
pp. 01031
Author(s):  
Satoru Seto ◽  
Rintaro Shimizu ◽  
Makoto Tokuda

We report on metal-organic halide perovskite CH3NH3PbI3 films converted from PbI2 precursors for planar heterojunction perovskite solar cells. PbI2 films as a precursor were deposited by hot-wall method and conventional vacuum evaporation. The conversion to perovskite phase from the PbI2 films were performed by annealing in methyl ammonium iodine (MAI) vapour at 120-150 °C. We confirmed that no residual PbI2 phase can be detected in the converted perovskite films by x-ray diffraction measurements. The surface morphology of the perovskite films was measured by AFM. Roughness Ra of the films is 17.8 nm, which is comparable value to the reported ones. Using the converted perovskite films we fabricated tentative perovskite solar cells with a device architecture of ITO/PEDOT:PSS/Perovskite/C60/Ag. The power conversion efficiencies of the fabricated solar cells from a conventional evaporation and the hot-wall method exhibited 2.22 and 2.33%, respectively.


2016 ◽  
Vol 28 (48) ◽  
pp. 10701-10709 ◽  
Author(s):  
Bert Conings ◽  
Aslihan Babayigit ◽  
Matthew T. Klug ◽  
Sai Bai ◽  
Nicolas Gauquelin ◽  
...  

2016 ◽  
Vol 9 (1) ◽  
pp. 12-30 ◽  
Author(s):  
Hobeom Kim ◽  
Kyung-Geun Lim ◽  
Tae-Woo Lee

This review article gives an overview of progress in planar heterojunction perovskite solar cells and the roles of interfacial layers in the device, and suggests a practical strategy to fabricate highly efficient and flexible planar heterojunction perovskite solar cells.


2014 ◽  
Vol 2 (32) ◽  
pp. 12754-12760 ◽  
Author(s):  
Sudam Chavhan ◽  
Oscar Miguel ◽  
Hans-Jurgen Grande ◽  
Victoria Gonzalez-Pedro ◽  
Rafael S. Sánchez ◽  
...  

The viability of using solution-processed CuSCN films as inorganic hole selective contacts in perovskite solar cells is demonstrated, by reaching a power conversion efficiency of 6.4% in planar heterojunction-based devices.


2014 ◽  
Vol 24 (21) ◽  
pp. 3250-3258 ◽  
Author(s):  
Amalie Dualeh ◽  
Nicolas Tétreault ◽  
Thomas Moehl ◽  
Peng Gao ◽  
Mohammad Khaja Nazeeruddin ◽  
...  

2014 ◽  
Vol 7 (9) ◽  
pp. 2944-2950 ◽  
Author(s):  
Alexander T. Barrows ◽  
Andrew J. Pearson ◽  
Chan Kyu Kwak ◽  
Alan D. F. Dunbar ◽  
Alastair R. Buckley ◽  
...  

Perovskite solar cells prepared via spray-deposition of the active layer have been realized, advancing this promising technology towards roll-to-roll compatible processing methods.


2017 ◽  
Vol 3 (8) ◽  
pp. e1700106 ◽  
Author(s):  
Lijian Zuo ◽  
Hexia Guo ◽  
Dane W. deQuilettes ◽  
Sarthak Jariwala ◽  
Nicholas De Marco ◽  
...  

2017 ◽  
Vol 5 (38) ◽  
pp. 20327-20333 ◽  
Author(s):  
Ying-Ke Ren ◽  
Xi-Hong Ding ◽  
Ya-Han Wu ◽  
Jun Zhu ◽  
Tasawar Hayat ◽  
...  

The nucleation stage has an important influence on the lead halide perovskite film morphology, and therefore the solar cell performance.


Sign in / Sign up

Export Citation Format

Share Document