Reticulated Organic Photovoltaics

被引：14

作者：

Schiros, Theanne ^{[1
]}

Mannsfeld, Stefan ^{[3
]}

Chiu, Chien-yang ^{[2
]}

Yager, Kevin G. ^{[4
]}

Ciston, James ^{[4
]}

Gorodetsky, Alon A. ^{[2
]}

Palma, Matteo ^{[5
]}

Bullard, Zac ^{[2
]}

Kramer, Theodore ^{[5
]}

Delongchamp, Dean ^{[6
]}

Fischer, Daniel ^{[7
]}

Kymissis, Ioannis ^{[1
]}

Toney, Michael F. ^{[3
]}

Nuckolls, Colin ^{[2
]}

机构：

[1] Columbia Univ, Energy Frontier Res Ctr, New York, NY 10027 USA

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

[3] Stanford Linear Accelerator Ctr, Stanford Synchrotron Radiat Light Source, Menlo Pk, CA 94025 USA

[4] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA

[5] Columbia Univ, Dept Appl Phys & Math, New York, NY 10027 USA

[6] NIST, Div Polymers, Gaithersburg, MD 20899 USA

[7] NIST, Div Ceram, Gaithersburg, MD 20899 USA

来源：

ADVANCED FUNCTIONAL MATERIALS | 2012年 / 22卷 / 06期

基金：

美国国家科学基金会;

关键词：

organic electronics; photovoltaics; self-assembly; microstructure; nanostructures; EFFICIENCY;

D O I：

10.1002/adfm.201102572

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper shows how the self-assembled interlocking of two nanostructured materials can lead to increased photovoltaic performance. A detailed picture of the reticulated 6-DBTTC/C60 organic photovoltaic (OPV) heterojunction, which produces devices approaching the theoretical maximum for these materials, is presented from near edge X-ray absorption spectroscopy (NEXAFS), X-ray photoelectron spectroscopy (XPS), Grazing Incidence X-ray diffraction (GIXD) and transmission electron microscopy (TEM). The complementary suite of techniques shows how self-assembly can be exploited to engineer the interface and morphology between the cables of donor (6-DBTTC) material and a polycrystalline acceptor (C60) to create an interpenetrating network of pure phases expected to be optimal for OPV device design. Moreover, we find that there is also a structural and electronic interaction between the two materials at the molecular interface. The data show how molecular self-assembly can facilitate 3-D nanostructured photovoltaic cells that are made with the simplicity and control of bilayer device fabrication. The significant improvement in photovoltaic performance of the reticulated heterojunction over the flat analog highlights the potential of these strategies to improve the efficiency of organic solar cells.

引用

页码：1167 / 1173

页数：7

共 20 条

[1] Quantification of Thin Film Crystallographic Orientation Using X-ray Diffraction with an Area Detector [J].