title: Entropic Ligands for Nanocrystals: From Unexpected Solution Properties to Outstanding Processability.
abstract: Solution processability of nanocrystals coated with a stable monolayer of organic ligands (nanocrystal-ligands complexes) is the starting point for their applications, which is commonly measured by their solubility in media. A model described in the other report (10.1021/acs.nanolett.6b00737) reveals that instead of offering steric barrier between inorganic cores, it is the rotation/bending entropy of the C-C σ bonds within typical organic ligands that exponentially enhances solubility of the complexes in solution. Dramatic ligand chain-length effects on the solubility of CdSe-n-alkanoates complexes shall further reveal the power of the model. Subsequently, "entropic ligands" are introduced to maximize the intramolecular entropic effects, which increases solubility of various nanocrystals by 10(2)-10(6). Entropic ligands can further offer means to greatly improve performance of nanocrystals-based electronic and optoelectronic devices.
authors.affiliation: Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University , Hangzhou, 310027, People's Republic of China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University , Hangzhou, 310027, People's Republic of China.
authors.forename: Haiyan
authors.initials: H
authors.lastname: Qin
authors.affiliation: Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University , Hangzhou, 310027, People's Republic of China.
authors.forename: Maowei
authors.initials: M
authors.lastname: Jiang
authors.affiliation: Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University , Hangzhou, 310027, People's Republic of China.
authors.forename: Long
authors.initials: L
authors.lastname: Lin
authors.affiliation: Najing Technology Corporation , 500 Qiuyi Road, Hangzhou 310052, People's Republic of China.
authors.forename: Tao
authors.initials: T
authors.lastname: Fu
authors.affiliation: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou, 310027, People's Republic of China.
authors.forename: Xingliang
authors.initials: X
authors.lastname: Dai
authors.affiliation: Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University , Hangzhou, 310027, People's Republic of China.
authors.forename: Zhenxing
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University , Hangzhou, 310027, People's Republic of China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Niu
authors.affiliation: Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University , Hangzhou, 310027, People's Republic of China.
authors.forename: Hujia
authors.initials: H
authors.lastname: Cao
authors.affiliation: Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University , Hangzhou, 310027, People's Republic of China.|State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou, 310027, People's Republic of China.
authors.forename: Yizheng
authors.initials: Y
authors.lastname: Jin
authors.affiliation: Najing Technology Corporation , 500 Qiuyi Road, Hangzhou 310052, People's Republic of China.
authors.forename: Fei
authors.initials: F
authors.lastname: Zhao
authors.affiliation: Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University , Hangzhou, 310027, People's Republic of China.
authors.forename: Xiaogang
authors.initials: X
authors.lastname: Peng
keywords: Nanocrystal−ligands complexes; enthalpy change; entropic ligands; entropy change; optoelectronic devices; solubility