Linearly arranged polytypic CZTSSe nanocrystals

被引：43

作者：

Fan, Feng-Jia ^{[1
]}

Wu, Liang ^{[1
]}

Gong, Ming ^{[2
]}

Chen, Shi You ^{[3
]}

Liu, Guang Yao ^{[4
]}

Yao, Hong-Bin ^{[1
]}

Liang, Hai-Wei ^{[1
]}

Wang, Yi-Xiu ^{[1
]}

Yu, Shu-Hong ^{[1
]}

机构：

[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, CAS Key Lab Mech Behav & Design Mat,Dept Chem, Div Nanomat & Chem,Hefei Natl Lab Phys Sci Micros, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Engn & Mat Sci Expt Ctr, Hefei 230026, Peoples R China

[3] E China Normal Univ, Lab Polar Mat & Devices, Shanghai 200241, Peoples R China

[4] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

来源：

SCIENTIFIC REPORTS | 2012年 / 2卷

基金：

中国国家自然科学基金; 对外科技合作项目（国际科技项目）;

关键词：

QUATERNARY CHALCOGENIDE NANOCRYSTALS; TWIN-PLANE SUPERLATTICES; THERMOELECTRIC PROPERTIES; CU2ZNSNSE4; NANOCRYSTALS; COLLOIDAL SYNTHESIS; WURTZITE; STABILITY; GROWTH; SE;

D O I：

10.1038/srep00952

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Even colloidal polytypic nanostructures show promising future in band-gap tuning and alignment, researches on them have been much less reported than the standard nano-heterostructures because of the difficulties involved in synthesis. Up to now, controlled synthesis of colloidal polytypic nanocrsytals has been only realized in II-VI tetrapod and octopod nanocrystals with branched configurations. Herein, we report a colloidal approach for synthesizing non-branched but linearly arranged polytypic I-2-II-IV-VI4 nanocrystals, with a focus on polytypic non-stoichiometric Cu2ZnSnSxSe4-x nanocrystals. Each synthesized polytypic non-stoichiometric Cu2ZnSnSxSe4-x nanocrystal is consisted of two zinc blende-derived ends and one wurtzite-derived center part. The formation mechanism has been studied and the phase composition can be tuned through adjusting the reaction temperature, which brings a new band-gap tuning approach to Cu2ZnSnSxSe4-x nanocrystals.

引用

页数：6

共 44 条

[1] Band Alignment Tuning in Twin-Plane Superlattices of Semiconductor Nanowires [J].