Instant Postsynthesis Aqueous Dispersion of Sb-Doped SnO2 Nanocrystals: The Synergy between Small-Molecule Amine and Sb Dopant Ratio

被引:15
作者
Chen, Zhangxian [1 ,2 ]
Xie, Qiannan [1 ]
Ding, Juxuan [1 ]
Yang, Zeheng [1 ]
Zhang, Weixin [1 ]
Cheng, Hansong [3 ]
机构
[1] Hefei Univ Technol, Sch Chem & Chem Engn, Hefei 230009, Peoples R China
[2] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China
[3] China Univ Geosci Wuhan, Fac Mat Sci & Chem, Sustainable Energy Lab, Wuhan 430074, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
transparent conducting film; Sb-doped tin oxide; postsynthesis dispersion; small-molecule amine; surface interaction; TOTAL-ENERGY CALCULATIONS; TIN OXIDE NANOCRYSTALS; THIN-FILMS; HIGH FIGURE; ANTIMONY; TRANSPARENT; SURFACE; PERFORMANCE; ELECTRODES; COATINGS;
D O I
10.1021/acsami.0c04494
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Direct printing of transparent conducting oxide (TCO) nanocrystal dispersions holds great promise in solution-processed optoelectronics due to its advantages of low material waste and direct patterning on substrates. An essential prerequisite for printable TCO colloidal solutions is the effective stabilization of TCO nanocrystals to prevent their strong aggregation. In situ stabilization uses long-chain ligands to provide interparticle steric repulsion between TCO nanocrystals during the growth of TCO nanocrystals. In sharp contrast, the postsynthesis dispersion of TCO nanocrystals is particularly challenging since the agglomeration already occurs, especially for TCO nanocrystals synthesized without protection by any organic species. Herein, we propose an instant postsynthesis strategy for aqueous colloidal dispersions of Sb-doped SnO2 (ATO) nanocrystals using small-molecule amines of propylamine, ethylenediamine, monoethanolamine, and triethylamine. The average size of ATO secondary particles in aqueous dispersions can be instantly reduced from around 400 to about 25 nm using these amines. The increased Sb dopant ratio also plays a synergistic role in the dispersion effect. The small-molecule amines are found to be preferably adsorbed onto the Sb sites exposed on ATO nanocrystal surface. A higher Sb dopant ratio would facilitate the adsorption of more amines and induce stronger surface charge repulsion that benefits the stable dispersion of ATO nanocrystals. TCO films fabricated with the ATO nanocrystal dispersions have a high transparency of 80.6% and low sheet resistance of 492 Omega/sq, showing promising application in electrochromic devices.
引用
收藏
页码:29937 / 29945
页数:9
相关论文
共 47 条
[1]   Transparent Conducting Aerogels of Antimony-Doped Tin Oxide [J].
Baena, Juan Pablo Correa ;
Agrios, Alexander G. .
ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (21) :19127-19134
[2]  
Barton A.F. M., 1991, CRC HDB SOLUBILITY P
[3]   Gas-phase-dependent properties of SnO2 (110), (100), and (101) single-crystal surfaces:: Structure, composition, and electronic properties -: art. no. 165414 [J].
Batzill, M ;
Katsiev, K ;
Burst, JM ;
Diebold, U ;
Chaka, AM ;
Delley, B .
PHYSICAL REVIEW B, 2005, 72 (16)
[4]   IMPROVED TETRAHEDRON METHOD FOR BRILLOUIN-ZONE INTEGRATIONS [J].
BLOCHL, PE ;
JEPSEN, O ;
ANDERSEN, OK .
PHYSICAL REVIEW B, 1994, 49 (23) :16223-16233
[5]   Doped Semiconductor Nanocrystals: Synthesis, Characterization, Physical Properties, and Applications [J].
Bryan, J. Daniel ;
Gamelin, Daniel R. .
PROGRESS IN INORGANIC CHEMISTRY, VOL 54, 2005, 54 :47-126
[6]   Electronic Structures and Transport Properties of n-Type-Doped Indium Oxides [J].
Chen, Zhangxian ;
Huang, Liang ;
Zhang, Qingfan ;
Xi, Yongjie ;
Li, Ran ;
Li, Wanchao ;
Xu, Guoqin ;
Cheng, Hansong .
JOURNAL OF PHYSICAL CHEMISTRY C, 2015, 119 (09) :4789-4795
[7]   Fabrication of Highly Transparent and Conductive Indium-Tin Oxide Thin Films with a High Figure of Merit via Solution Processing [J].
Chen, Zhangxian ;
Li, Wanchao ;
Li, Ran ;
Zhang, Yunfeng ;
Xu, Guoqin ;
Cheng, Hansong .
LANGMUIR, 2013, 29 (45) :13836-13842
[8]   Influence of Nanocrystal Size on the Optoelectronic Properties of Thin, Solution-Cast Sn-Doped In2O3 Films [J].
Crockett, Brandon M. ;
Jansons, Adam W. ;
Koskela, Kristopher M. ;
Sharps, Meredith C. ;
Johnson, Darren W. ;
Hutchison, James E. .
CHEMISTRY OF MATERIALS, 2019, 31 (09) :3370-3380
[9]   Transparent heat regulating (THR) materials and coatings for energy saving window applications: Impact of materials design, micro-structural, and interface quality on the THR performance [J].
Dalapati, Goutam Kumar ;
Kushwaha, Ajay Kumar ;
Sharma, Mohit ;
Suresh, Vignesh ;
Shannigrahi, Santiranjan ;
Zhuk, Siarhei ;
Masudy-Panah, Saeid .
PROGRESS IN MATERIALS SCIENCE, 2018, 95 :42-131
[10]   Probing Solvent-Ligand Interactions in Colloidal Nanocrystals by the NMR Line Broadening [J].
De Roo, Jonathan ;
Yazdani, Nuri ;
Drijvers, Emile ;
Lauria, Alessandro ;
Maes, Jorick ;
Owen, Jonathan S. ;
Van Driessche, Isabel ;
Niederberger, Markus ;
Wood, Vanessa ;
Martins, Jose C. ;
Infante, Ivan ;
Hens, Zeger .
CHEMISTRY OF MATERIALS, 2018, 30 (15) :5485-5492