Ultimate efficiency of polymer/fullerene bulk heterojunction solar cells

被引：491

作者：

Koster, LJA ^{[1
]}

Mihailetchi, VD ^{[1
]}

Blom, PWM ^{[1
]}

机构：

[1] Univ Groningen, Ctr Mat Sci, NL-9747 AG Groningen, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 09期

关键词：

D O I：

10.1063/1.2181635

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present model calculations to explore the potential of polymer/fullerene bulk heterojunction solar cells. As a starting point, devices based on poly(3-hexylthiophene) and 6,6-phenyl C-61-butyric acid methyl ester (PCBM), reaching 3.5% efficiency, are modeled. Lowering the polymeric band gap will lead to a device efficiency exceeding 6%. Tuning the electronic levels of PCBM in such a way that less energy is lost in the electron transfer process enhances the efficiency to values in excess of 8%. Ultimately, with an optimized level tuning, band gap, and balanced mobilities polymeric solar cells can reach power conversion efficiencies approaching 11%.

引用

页数：3

共 20 条

[1] Intrinsic photoconduction in PPV-type conjugated polymers
Barth, S
Bassler, H
[J]. PHYSICAL REVIEW LETTERS, 1997, 79 (22) : 4445 - 4448
[2] Brabec CJ, 2001, ADV FUNCT MATER, V11, P374, DOI 10.1002/1616-3028(200110)11:5<374::AID-ADFM374>3.0.CO
[3] 2-W
[4] Brabec CJ, 2002, ADV FUNCT MATER, V12, P709, DOI 10.1002/1616-3028(20021016)12:10<709::AID-ADFM709>3.0.CO
[5] 2-N
[6] Conjugated polymer photovoltaic cells
Coakley, KM
McGehee, MD
[J]. CHEMISTRY OF MATERIALS, 2004, 16 (23) : 4533 - 4542
[7] Charge- and energy-transfer processes at polymer/polymer interfaces:: A joint experimental and theoretical study
Halls, JJM
Cornil, J
dos Santos, DA
Silbey, R
Hwang, DH
Holmes, AB
Brédas, JL
Friend, RH
[J]. PHYSICAL REVIEW B, 1999, 60 (08) : 5721 - 5727
[8] Modeling the optical absorption within conjugated polymer/fullerene-based bulk-heterojunction organic solar cells
Hoppe, H
Arnold, N
Sariciftci, NS
Meissner, D
[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2003, 80 (01) : 105 - 113
[9] Origin of the light intensity dependence of the short-circuit current of polymer/fullerene solar cells
Koster, LJA
Mihailetchi, VD
Xie, H
Blom, PWM
[J]. APPLIED PHYSICS LETTERS, 2005, 87 (20) : 1 - 3
[10] Device model for the operation of polymer/fullerene bulk heterojunction solar cells
Koster, LJA
Smits, ECP
Mihailetchi, VD
Blom, PWM
[J]. PHYSICAL REVIEW B, 2005, 72 (08)

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