Three-Dimensional Graphene Nanostructures

被引：104

作者：

Peurifoy, Samuel R. ^{[1
]}

Castro, Edison ^{[2
]}

Liu, Fang ^{[1
]}

Zhu, X. -Y. ^{[1
]}

Ng, Fay ^{[1
]}

Jockusch, Steffen ^{[1
]}

Steigerwald, Michael L. ^{[1
]}

Echegoyen, Luis ^{[2
]}

Nuckolls, Colin ^{[1
,3
]}

Sisto, Thomas J. ^{[1
]}

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

[2] Univ Texas El Paso, Dept Chem, El Paso, TX 79968 USA

[3] Wuhan Univ Sci & Technol, Sch Chem & Chem Engn, Inst Adv Mat & Nanotechnol, State Key Lab Refractories & Met, Wuhan 430081, Hubei, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2018年 / 140卷 / 30期

基金：

美国国家科学基金会;

关键词：

PEROVSKITE SOLAR-CELLS; CYCLIC VOLTAMMETRY; NANORIBBONS; TRIPTYCENE; PERFORMANCE; DERIVATIVES; FULLERENES; STABILITY; BANDGAP;

D O I：

10.1021/jacs.8b04119

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This Communication details the implementation of a new concept for the design of high-performance optoelectronic materials: three-dimensional (3D) graphene nanostructures. This general strategy is showcased through the synthesis of a three-bladed propeller nanostructure resulting from the coupling and fusion of a central triptycene hub and helical graphene nanoribbons. Importantly, these 3D graphene nanostructures show remarkable new properties that are distinct from the substituent parts. For example, the larger nanostructures show an enhancement in absorption and decreased contact resistance in optoelectronic devices. To show these enhanced properties in a device setting, the nanostructures were utilized as the electron-extracting layers in perovskite solar cells. The largest of these nanostructures achieved a PCE of 18.0%, which is one of the highest values reported for non-fullerene electron-extracting layers.

引用

收藏

页码：9341 / 9345

页数：5

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