AgI nanoplates with mesoscopic superionic conductivity at room temperature

被引：74

作者：

Guo, YG ^{[1
]}

Lee, JS ^{[1
]}

Maier, J ^{[1
]}

机构：

[1] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

来源：

ADVANCED MATERIALS | 2005年 / 17卷 / 23期

关键词：

D O I：

10.1002/adma.200501215

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

AgI nanoplates with unusual 7H and 9R polytype phases (see Figure) have been prepared in large quantities by a solution-based method using polyelectrolytes. The nanoplates exhibit extremely high conductivity, which is enhanced by four orders of magnitude compared to the macroscopic AgI phase (beta-AgI), and a surprising conductivity isotropy, both of which can be explained by mesoscopic ionic-conductivity effects in polytype heterostructures.

引用

页码：2815 / +

页数：6

共 25 条

[1] Nanostructured materials for advanced energy conversion and storage devices [J].

Aricò, AS ;

Bruce, P ;

Scrosati, B ;

Tarascon, JM ;

Van Schalkwijk, W .

NATURE MATERIALS, 2005, 4 (05) :366-377

[2] HETEROCRYSTALLINE STRUCTURES - NEW TYPES OF SUPERLATTICES [J].

BECHSTEDT, F ;

KACKELL, P .

PHYSICAL REVIEW LETTERS, 1995, 75 (11) :2180-2183

[3] MEMORY EFFECT IN SILVER IODIDE [J].

BURLEY, G .

ACTA CRYSTALLOGRAPHICA, 1967, 23 :1-&

[4]

DAVIS BL, 1974, CRYST LATT DEF AMORP, V5, P235

[5] Artificially layered heteropolytypic structures based on SiC polytypes: molecular beam epitaxy, characterization and properties [J].

Fissel, A .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2003, 379 (3-4) :149-255

[6]

Funke K., 1976, Prog. Solid State Chem, V11, P345, DOI DOI 10.1016/0079-6786(76)90001-7

[7]

Geller S., 1977, SOLID ELECTROLYTES

[8]

GUO Y, UNPUB

[9]

Lee J.-I., UNPUB

[10] Transport and phase transition characteristics in AgI:Al2O3 composite electrolytes -: Evidence for a highly conducting 7-layer AgI polytype [J].

Lee, JS ;

Adams, S ;

Maier, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (06) :2407-2418

← 1 2 3 →