Sputtered Ultrathin TiO2 as Electron Transport Layer in Silicon Heterojunction Solar Cell Technology

被引:6
|
作者
Fernandez, Susana [1 ]
Torres, Ignacio [1 ]
Javier Gandia, Jose [1 ]
机构
[1] CIEMAT, Dept Energia, Ave Complutense 40, Madrid 28040, Spain
关键词
titanium dioxide; magnetron sputtering; electron transport layer; silicon heterojunction solar cells; NANOPARTICLES; COATINGS; PRESSURE; CONTACTS; OXIDE; GEL;
D O I
10.3390/nano12142441
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This work presents the implementation of ultrathin TiO2 films, deposited at room temperature by radio-frequency magnetron sputtering, as electron-selective contacts in silicon heterojunction solar cells. The effect of the working pressure on the properties of the TiO2 layers and its subsequent impact on the main parameters of the device are studied. The material characterization revealed an amorphous structure regardless of the working pressure; a rougher surface; and a blue shift in bandgap in the TiO2 layer deposited at the highest-pressure value of 0.89 Pa. When incorporated as part of the passivated full-area electron contact in silicon heterojunction solar cell, the chemical passivation provided by the intrinsic a-Si:H rapidly deteriorates upon the sputtering of the ultra-thin TiO2 films, although a short anneal is shown to restore much of the passivation lost. The deposition pressure and film thicknesses proved to be critical for the efficiency of the devices. The film thicknesses below 2 nm are necessary to reach open-circuit values above 660 mV, regardless of the deposition pressure. More so, the fill-factor showed a strong dependence on deposition pressure, with the best values obtained for the highest deposition pressure, which we correlated to the porosity of the films. Overall, these results show the potential to fabricate silicon solar cells with a simple implementation of electron-selective TiO2 contact deposited by magnetron sputtering. These results show the potential to fabricate silicon solar cells with a simple implementation of electron-selective TiO2 contact.
引用
收藏
页数:12
相关论文
共 50 条
  • [41] DC Magnetron Sputtered TiO2 Thin Film as Efficient Hole Blocking Layer for Perovskite Solar Cell
    Saheed, Mohamed Salleh Mohamed
    Mohamed, Norani Muti
    Singh, Balbir Singh Mahinder
    Perumal, Veeradasan
    Saheed, Mohamed Shuaib Mohamed
    PROCEEDINGS OF THE 2017 IEEE REGIONAL SYMPOSIUM ON MICRO AND NANOELECTRONICS (RSM), 2017, : 46 - 49
  • [42] Dependence of device performance on the thickness of compact TiO2 layer in perovskite/TiO2 planar heterojunction solar cells
    Wu, Runsheng
    Yang, Bingchu
    Xiong, Jian
    Cao, Chenghao
    Huang, Yulan
    Wu, Fanying
    Sun, Jia
    Zhou, Conghua
    Huang, Han
    Yang, Junliang
    JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY, 2015, 7 (04)
  • [43] 15% efficient carbon based planar-heterojunction perovskite solar cells using a TiO2/SnO2 bilayer as the electron transport layer
    Liu, Zhiyong
    Sun, Bo
    Liu, Xingyue
    Han, Jinghui
    Ye, Haibo
    Tu, Yuxue
    Chen, Chen
    Shi, Tielin
    Tang, Zirong
    Liao, Guanglan
    JOURNAL OF MATERIALS CHEMISTRY A, 2018, 6 (17) : 7409 - 7419
  • [44] TiO2/SnO2 Bilayer Electron Transport Layer for High Efficiency Perovskite Solar Cells
    Sun, Xiaolin
    Li, Lu
    Shen, Shanshan
    Wang, Fang
    NANOMATERIALS, 2023, 13 (02)
  • [45] Effect of doping engineering in TiO2 electron transport layer on photovoltaic performance of perovskite solar cells
    Raj, Abhishek
    Kumar, Manish
    Kumar, Arvind
    Laref, Amel
    Singh, Kedar
    Sharma, Subhash
    Anshul, Avneesh
    MATERIALS LETTERS, 2022, 313
  • [46] Engineering of the Electron Transport Layer/Perovskite Interface in Solar Cells Designed on TiO2 Rutile Nanorods
    Shahvaranfard, Fahimeh
    Altomare, Marco
    Hou, Yi
    Hejazi, Seyedsina
    Meng, Wei
    Osuagwu, Benedict
    Li, Ning
    Brabec, Christoph J.
    Schmuki, Patrik
    ADVANCED FUNCTIONAL MATERIALS, 2020, 30 (10)
  • [47] TiO2 Phase Junction Electron Transport Layer Boosts Efficiency of Planar Perovskite Solar Cells
    Zhu, Yayun
    Deng, Kaimo
    Sun, Haoxuan
    Gu, Bangkai
    Lu, Hao
    Cao, Fengren
    Xiong, Jie
    Li, Liang
    ADVANCED SCIENCE, 2018, 5 (03):
  • [48] Effect of the TiO2 electron transport layer thickness on charge transfer processes in perovskite solar cells
    Mukametkali, T. M.
    Ilyassov, B. R.
    Aimukhanov, A. K.
    Serikov, T. M.
    Baltabekov, A. S.
    Aldasheva, L. S.
    Zeinidenov, A. K.
    PHYSICA B-CONDENSED MATTER, 2023, 659
  • [49] A Rutile TiO2 Electron Transport Layer for the Enhancement of Charge Collection for Efficient Perovskite Solar Cells
    Wang, Yongling
    Wan, Jiawei
    Ding, Jie
    Hu, Jin-Song
    Wang, Dan
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2019, 58 (28) : 9414 - 9418
  • [50] Design and Fabrication of TiO2\G Nanocomposite as Electron Transport Layer for Perovskite QD Solar Cells
    Abd Ali, Rawaa Abbas
    Al-bahrani, Majid R.
    Waried, Hussein H.
    JOURNAL OF NANOSTRUCTURES, 2024, 14 (03) : 953 - 962