High efficiency P3HT:PCBM solar cells with an inserted PCBM Layer

被引：97

作者：

Chi, Dan ^{[1
,2
]}

Qu, Shengchun ^{[1
]}

Wang, Zhanguo ^{[1
]}

Wang, Jizheng ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China

[2] Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2014年 / 2卷 / 22期

基金：

中国国家自然科学基金;

关键词：

POLYMER PHOTOVOLTAIC CELLS; FILL FACTOR; PERFORMANCE; HETEROJUNCTION; RECOMBINATION; MORPHOLOGY; TRANSPORT; LIFETIME; NETWORK; HOLE;

D O I：

10.1039/c4tc00003j

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By inserting a PCBM (phenyl-C61-butyric acid methyl ester) layer between a P3HT (poly(3-hexylthiophene)):PCBM blend and a Ca/Al cathode, the performance of P3HT:PCBM bulk-heterojunction polymer solar cells is greatly improved. The maximum power conversion efficiency reached 4.24%, which is much higher than that of the traditional standard P3HT:PCBM based device (3.57%). By exploring various experimental techniques including absorption spectroscopy, X-ray photoelectron spectroscopy and impedance spectroscopy, we have found that the enhancement of the device performance can mainly be attributed to two reasons: (1) the inserted-PCBM layer can enhance the overall light absorption of the whole device and hence improve the photocurrent. (2) The inserted-PCBM layer can increase the amount of PCBM at the interface between the active layer and the cathode electrode, and hence suppress carrier recombination and facilitate electron extraction.

引用

页码：4383 / 4387

页数：5

共 37 条

[1]

[Anonymous], J AM CHEM SOC

[2] Sequential deposition as a route to high-performance perovskite-sensitized solar cells [J].

Burschka, Julian ;

Pellet, Norman ;

Moon, Soo-Jin ;

Humphry-Baker, Robin ;

Gao, Peng ;

Nazeeruddin, Mohammad K. ;

Graetzel, Michael .

NATURE, 2013, 499 (7458) :316-+

[3] Recent Progress in Polymer Solar Cells: Manipulation of Polymer: Fullerene Morphology and the Formation of Efficient Inverted Polymer Solar Cells [J].

Chen, Li-Min ;

Hong, Ziruo ;

Li, Gang ;

Yang, Yang .

ADVANCED MATERIALS, 2009, 21 (14-15) :1434-1449

[4] The effect of side-chain length on regioregular poly[3-(4-n-alkyl) phenylthiophene]/PCBM and ICBA polymer solar cells [J].

Cho, Chul-Hee ;

Kim, Hyeong Jun ;

Kang, Hyunbum ;

Shin, Tae Joo ;

Kim, Bumjoon J. .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (28) :14236-14245

[5] Improving the Reproducibility of P3HT:PCBM Solar Cells by Controlling the PCBM/Cathode Interface [J].

de Villers, Bertrand Tremolet ;

Tassone, Christopher J. ;

Tolbert, Sarah H. ;

Schwartz, Benjamin J. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (44) :18978-18982

[6] Charge carrier mobility and lifetime of organic bulk heterojunctions analyzed by impedance spectroscopy [J].

Garcia-Belmonte, Germa ;

Munar, Antoni ;

Barea, Eva M. ;

Bisquert, Juan ;

Ugarte, Irati ;

Pacios, Roberto .

ORGANIC ELECTRONICS, 2008, 9 (05) :847-851

[7]

Gu X, 2013, ADV ENERGY MATER, V3, P1262, DOI [10.1002/aenm.201300549, 10.1002/aenm201300549]

[8]

He ZC, 2012, NAT PHOTONICS, V6, P591, DOI [10.1038/nphoton.2012.190, 10.1038/NPHOTON.2012.190]

[9] Roles of donor and acceptor nanodomains in 6% efficient thermally annealed polymer photovoltaics [J].

Kim, Kyungkon ;

Liu, Jiwen ;

Namboothiry, Manoj A. G. ;

Carroll, David L. .

APPLIED PHYSICS LETTERS, 2007, 90 (16)

[10] Effective Variables To Control the Fill Factor of Organic Photovoltaic Cells [J].

Kim, Myung-Su ;

Kim, Bong-Gi ;

Kim, Jinsang .

ACS APPLIED MATERIALS & INTERFACES, 2009, 1 (06) :1264-1269

← 1 2 3 4 →