A novel phenoxazine-based hole transport material for efficient perovskite solar cell

被引：21

作者：

Cheng, Ming ^{[1
]}

Chen, Cheng ^{[2
]}

Xu, Bo ^{[1
]}

Hua, Yong ^{[1
]}

Zhang, Fuguo ^{[3
]}

Kloo, Lars ^{[2
]}

Sun, Licheng ^{[1
,3
]}

机构：

[1] KTH Royal Inst Technol, Dept Chem, Organ Chem, SE-10044 Stockholm, Sweden

[2] KTH Royal Inst Technol, Dept Chem, Appl Phys Chem, SE-10044 Stockholm, Sweden

[3] Dalian Univ Technol DUT, State Key Lab Fine Chem, Inst Artificial Photosynth, DUT KTH Joint Educ & Res Ctr Mol Devices, Dalian 116024, Liaoning, Peoples R China

来源：

JOURNAL OF ENERGY CHEMISTRY | 2015年 / 24卷 / 06期

基金：

中国国家自然科学基金; 瑞典研究理事会;

关键词：

Dopant-free; Perovskite solar cell; Hole transport material; Phenoxazine; Thin film; PERFORMANCE; ELECTRON; TRIHALIDE; LENGTHS; DOPANT; CORE;

D O I：

10.1016/j.jechem.2015.10.021

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Based on the previous research work in our laboratory, we have designed and synthesized a small-molecule, hole transport material (HTM) POZ6-2 using phenoxazine (POZ) as central unit and dicyanovinyl units as electron-withdrawing terminal groups. Through the introduction of a 2-ethyl-hexyl bulky chain into the POZ core unit, POZ6-2 exhibits good solubility in organic solvents. In addition, POZ6-2 possesses appropriate energy levels in combination with a high hole mobility and conductivity in its pristine form. Therefore, it can readily be used as a dopant-free HTM in perovskite solar cells (PSCs) and a conversion efficiency of 10.3% was obtained. The conductivity of the POZ6-2 layer can be markedly enhanced via doping in combination with typical additives, such as 4-tert-butylpyridine (TBP) and lithium bis(trifluoromethanesulfonyl) imide (LiTFSI). Correspondingly, the efficiency of the PSCs was further improved to 12.3% using doping strategies. Under the same conditions, reference devices based on the well-known HTM Spiro-OMeTAD show an efficiency of 12.8%. (C) 2015 Science Press and Dalian Institute of Chemical Physics. All rights reserved.

引用

页码：698 / 706

页数：9

共 56 条

[31] Hole-Transporting Small Molecules Based on Thiophene Cores for High Efficiency Perovskite Solar Cells [J].

Li, Hairong ;

Fu, Kunwu ;

Boix, Pablo P. ;

Wong, Lydia H. ;

Hagfeldt, Anders ;

Graetzel, Michael ;

Mhaisalkar, Subodh G. ;

Grimsdale, Andrew C. .

CHEMSUSCHEM, 2014, 7 (12) :3420-3425

[32] A Simple 3,4-Ethylenedioxythiophene Based Hole-Transporting Material for Perovskite Solar Cells [J].

Li, Hairong ;

Fu, Kunwu ;

Hagfeldt, Anders ;

Graetzel, Michael ;

Mhaisalkar, Subodh G. ;

Grimsdale, Andrew C. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (16) :4085-4088

[33]

Lin QQ, 2015, NAT PHOTONICS, V9, P106, DOI [10.1038/nphoton.2014.284, 10.1038/NPHOTON.2014.284]

[34] Compact Layer Free Perovskite Solar Cells with 13.5% Efficiency [J].

Liu, Dianyi ;

Yang, Jinli ;

Kelly, Timothy L. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2014, 136 (49) :17116-17122

[35] Perovskite solar cells with a planar heterojunction structure prepared using room-temperature solution processing techniques [J].

Liu, Dianyi ;

Kelly, Timothy L. .

NATURE PHOTONICS, 2014, 8 (02) :133-138

[36] A dopant-free hole-transporting material for efficient and stable perovskite solar cells [J].

Liu, Jian ;

Wu, Yongzhen ;

Qin, Chuanjiang ;

Yang, Xudong ;

Yasuda, Takeshi ;

Islam, Ashraful ;

Zhang, Kun ;

Peng, Wenqin ;

Chen, Wei ;

Han, Liyuan .

ENERGY & ENVIRONMENTAL SCIENCE, 2014, 7 (09) :2963-2967

[37] Efficient planar heterojunction perovskite solar cells by vapour deposition [J].

Liu, Mingzhen ;

Johnston, Michael B. ;

Snaith, Henry J. .

NATURE, 2013, 501 (7467) :395-+

[38]

Malinkiewicz O, 2014, NAT PHOTONICS, V8, P128, DOI [10.1038/nphoton.2013.341, 10.1038/NPHOTON.2013.341]

[39] A hole-conductor-free, fully printable mesoscopic perovskite solar cell with high stability [J].

Mei, Anyi ;

Li, Xiong ;

Liu, Linfeng ;

Ku, Zhiliang ;

Liu, Tongfa ;

Rong, Yaoguang ;

Xu, Mi ;

Hu, Min ;

Chen, Jiangzhao ;

Yang, Ying ;

Graetzel, Michael ;

Han, Hongwei .

SCIENCE, 2014, 345 (6194) :295-298

[40] Mixed-Organic-Cation Perovskite Photovoltaics for Enhanced Solar-Light Harvesting [J].

Pellet, Norman ;

Gao, Peng ;

Gregori, Giuliano ;

Yang, Tae-Youl ;

Nazeeruddin, Mohammad K. ;

Maier, Joachim ;

Graetzel, Michael .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (12) :3151-3157

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