Analyzing photo-induced interfacial charging in IZO/pentacene/C60/bathocuproine/Al organic solar cells by electric-field-induced optical second-harmonic generation measurement

被引：19

作者：

Chen, Xiangyu ^{[1
]}

Taguchi, Dai ^{[1
]}

Manaka, Takaaki ^{[1
]}

Iwamoto, Mitsumasa ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 1528552, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 11期

关键词：

D O I：

10.1063/1.4728225

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By using electric-field-induced optical second-harmonic generation (EFISHG) measurement, we investigated interfacial carrier behavior in organic solar cells (OSCs) with a blocking layer of bathocuproine (BCP). Results evidently showed that the Maxwell-Wagner type excess charges accumulate on both pentacene/C-60 and C-60/BCP interfaces. Meanwhile, the introduction of BCP layer enhances photocarrier generation in the OSCs and results in the increase of the conductivity of the pentacene and C-60 layers, which significantly suppresses the charge accumulation on the pentacene/C-60 interface. The role of the BCP blocking layer was discussed with taking into account the dielectric nature of the active organic OSC layer on the basis of the Maxwell-Wagner effect model. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4728225]

引用

页数：6

共 23 条

[1]

[Anonymous], APPL PHYS LETT

[2]

[Anonymous], ORG ELECT

[3] Analysis of interface carrier accumulation and relaxation in pentacene/C60 double-layer organic solar cell by impedance spectroscopy and electric-field-induced optical second harmonic generation [J].

Chen, Xiangyu ;

Taguchi, Dai ;

Shino, Tatsunori ;

Manaka, Takaaki ;

Iwamoto, Mitsumasa .

JOURNAL OF APPLIED PHYSICS, 2011, 110 (07)

[4] Analyzing interfacial carrier charging in pentacene/C60 double-layer organic solar cells by optical electric field induced second-harmonic generation measurement [J].

Chen, Xiangyu ;

Taguchi, Dai ;

Lee, Keanchuan ;

Manaka, Takaaki ;

Iwamoto, Mitsumasa .

CHEMICAL PHYSICS LETTERS, 2011, 511 (4-6) :491-495

[5] TRANSIENT DISTORTION AND NTH ORDER FILTERING IN DEEP LEVEL TRANSIENT SPECTROSCOPY (DNLTS) [J].

CROWELL, CR ;

ALIPANAHI, S .

SOLID-STATE ELECTRONICS, 1981, 24 (01) :25-36

[6] Conjugated polymer-based organic solar cells [J].

Guenes, Serap ;

Neugebauer, Helmut ;

Sariciftci, Niyazi Serdar .

CHEMICAL REVIEWS, 2007, 107 (04) :1324-1338

[7] High performance ambient processed inverted polymer solar cells through interfacial modification with a fullerene self-assembled monolayer [J].

Hau, Steven K. ;

Yip, Hin-Lap ;

Ma, Hong ;

Jen, Alex K. -Y. .

APPLIED PHYSICS LETTERS, 2008, 93 (23)

[8] Small molecular organic photovoltaic cells with exciton blocking layer at anode interface for improved device performance [J].

Hirade, Masaya ;

Adachi, Chihaya .

APPLIED PHYSICS LETTERS, 2011, 99 (15)

[9] Enhancement of the Open-Circuit Voltage and Hole Conduction of Tetraphenyl Porphyrin/C60 Multilayered Photovoltaic Device by the Insertion of Oxide Hole Collection Layers [J].

Itoh, Eiji ;

Higuchi, Yuji ;

Furuhata, Daisuke ;

Shirotori, Toshiki .

JAPANESE JOURNAL OF APPLIED PHYSICS, 2011, 50 (01)

[10] Probing ultrafast charge separation at organic donor/acceptor interfaces by a femtosecond electric field meter [J].

Kaake, L. G. ;

Jailaubekov, A. ;

Williams, K. J. ;

Zhu, X. -Y. .

APPLIED PHYSICS LETTERS, 2011, 99 (08)

← 1 2 3 →