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Title: Performance improvement of dye-sensitized solar cell by introducing Sm 3+ /Y 3+ co-doped TiO 2 film as an efficient blocking layer

Authors:
; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE Office of Electricity Delivery and Energy Reliability (OE), Power Systems Engineering Research and Development (R&D) (OE-10)
OSTI Identifier:
1396731
Grant/Contract Number:
2006AA05Z417
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Thin Solid Films
Additional Journal Information:
Journal Volume: 631; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-10-04 15:07:29; Journal ID: ISSN 0040-6090
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English

Citation Formats

Qin, Yiying, Hu, Zhiqiang, Lim, Boon Han, Yang, Bin, Chong, Kok-Keong, Chang, Wei Sea, Zhang, Putao, and Zhang, Haitao. Performance improvement of dye-sensitized solar cell by introducing Sm 3+ /Y 3+ co-doped TiO 2 film as an efficient blocking layer. Netherlands: N. p., 2017. Web. doi:10.1016/j.tsf.2017.03.042.
Qin, Yiying, Hu, Zhiqiang, Lim, Boon Han, Yang, Bin, Chong, Kok-Keong, Chang, Wei Sea, Zhang, Putao, & Zhang, Haitao. Performance improvement of dye-sensitized solar cell by introducing Sm 3+ /Y 3+ co-doped TiO 2 film as an efficient blocking layer. Netherlands. doi:10.1016/j.tsf.2017.03.042.
Qin, Yiying, Hu, Zhiqiang, Lim, Boon Han, Yang, Bin, Chong, Kok-Keong, Chang, Wei Sea, Zhang, Putao, and Zhang, Haitao. 2017. "Performance improvement of dye-sensitized solar cell by introducing Sm 3+ /Y 3+ co-doped TiO 2 film as an efficient blocking layer". Netherlands. doi:10.1016/j.tsf.2017.03.042.
@article{osti_1396731,
title = {Performance improvement of dye-sensitized solar cell by introducing Sm 3+ /Y 3+ co-doped TiO 2 film as an efficient blocking layer},
author = {Qin, Yiying and Hu, Zhiqiang and Lim, Boon Han and Yang, Bin and Chong, Kok-Keong and Chang, Wei Sea and Zhang, Putao and Zhang, Haitao},
abstractNote = {},
doi = {10.1016/j.tsf.2017.03.042},
journal = {Thin Solid Films},
number = C,
volume = 631,
place = {Netherlands},
year = 2017,
month = 6
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on April 19, 2018
Publisher's Accepted Manuscript

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  • In this letter, we report perovskite solar cells with thin dense Mg-doped TiO{sub 2} as hole-blocking layers (HBLs), which outperform cells using TiO{sub 2} HBLs in several ways: higher open-circuit voltage (V{sub oc}) (1.08 V), power conversion efficiency (12.28%), short-circuit current, and fill factor. These properties improvements are attributed to the better properties of Mg-modulated TiO{sub 2} as compared to TiO{sub 2} such as better optical transmission properties, upshifted conduction band minimum (CBM) and downshifted valence band maximum (VBM), better hole-blocking effect, and higher electron life time. The higher-lying CBM due to the modulation with wider band gap MgO and themore » formation of magnesium oxide and magnesium hydroxides together resulted in an increment of V{sub oc}. In addition, the Mg-modulated TiO{sub 2} with lower VBM played a better role in the hole-blocking. The HBL with modulated band position provided better electron transport and hole blocking effects within the device.« less
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