Identifying effects of TiO2 nanowires inside bulk heterojunction organic photovoltaics on charge diffusion and recombination

被引：12

作者：

Yang, P. ^{[1
,2
]}

Zeigler, D. F. ^{[3
]}

Bryant, K. C. ^{[3
]}

Martin, T. R. ^{[1
,2
]}

Gamelin, D. R. ^{[3
]}

Luscombe, C. K. ^{[1
,2
]}

机构：

[1] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA

[2] Univ Washington, Mol Engn & Sci Inst, Seattle, WA 98195 USA

[3] Univ Washington, Dept Chem, Seattle, WA 98195 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2014年 / 2卷 / 25期

基金：

美国国家科学基金会;

关键词：

SENSITIZED SOLAR-CELLS; ELECTRON-TRANSPORT; PERFORMANCE; MORPHOLOGY; SPECTROSCOPY; EFFICIENCY; IMPEDANCE; NANOTUBES; NANORODS; MOBILITY;

D O I：

10.1039/c4tc00563e

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The charge carrier dynamics of poly(3-hexylthiophene) (P3HT):[ 6,6]-phenyl-C-61-butyric acid methyl ester (PCBM) organic bulk-heterojunction photovoltaics with and without TiO2 nanowires are studied. Using inorganic nanowires as electron transport pathways improves the charge transit time and electron diffusion coefficient, which is the origin of fill factor and power conversion efficiency improvement observed in these devices. Through further comparison of devices with surface-modified nanowires (PCB-TiO2-NW), it is found that under AM 1.5 light illumination, charge recombination is dominant in the organic layer rather than at the TiO2 nanowire surface.

引用

页码：4922 / 4927

页数：6

共 50 条

[21] Large diffusion lengths of excitons in perovskite and TiO2 heterojunction
Gevorkian, Zhyrair
Gasparian, Vladimir
Lozovik, Yurii
APPLIED PHYSICS LETTERS, 2016, 108 (05)
[22] Electrochemical Growth of Copper Nanowires Inside of Semiconducting TiO2 Nanotubes
Sitler, S. J.
Raja, K. S.
FUNDAMENTALS OF ELECTROCHEMICAL GROWTH - FROM UPD TO MICROSTRUCTURES 3, 2014, 58 (32): : 117 - 132
[23] Facilitate charge transfer at donor/acceptor interface in bulk heterojunction organic photovoltaics by two-dimensional nanoflakes
Yang, Weitao
Ye, Zhixiang
Liang, Tao
Ye, Jian
Chen, Hongzheng
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2019, 190 : 75 - 82
[24] Improved Electron Diffusion Coefficient in Electrospun TiO2 Nanowires
Archana, P. S.
Jose, R.
Vijila, C.
Ramakrishna, S.
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (52) : 21538 - 21542
[25] Effect of CdS modification on photoelectric properties of TiO2/PbS quantum dots bulk heterojunction
Shi, Xin
Xu, Jianping
Shi, Shaobo
Zhang, Xiaosong
Li, Shubin
Wang, Chang
Wang, Xueliang
Li, Linlin
Li, Lan
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2016, 93 : 33 - 39
[26] Impact of Polymer Backbone Fluorination on the Charge Generation/Recombination Patterns and Vertical Phase Segregation in Bulk Heterojunction Organic Solar Cells
Shao, Yanqiu
Chang, Yuying
Zhang, Suju
Bi, Mingyue
Liu, Shengjian
Zhang, Daliang
Lu, Shirong
Kan, Zhipeng
FRONTIERS IN CHEMISTRY, 2020, 8
[27] Charge recombination reduction in dye-sensitized solar cells by depositing ultrapure TiO2 nanoparticles on "inert" BaTiO3 films
Zhong, Min
Shi, Jingying
Zhang, Wenhua
Han, Hongxian
Li, Can
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2011, 176 (14): : 1115 - 1122
[28] Suppress the Charge Recombination in Quantum Dot Sensitized Solar Cells by Construct the Al-treated TiO2/TiO2 NRAs Heterojunctions
Qiu, Qingqing
Zhao, Liwei
Li, Shuo
Wang, Dejun
Xu, Lingling
Lin, Yanhong
Xie, Tengfeng
CHEMISTRYSELECT, 2016, 1 (18): : 5936 - 5943
[29] Inter-diffused ordered bulk heterojunction organic photovoltaics: optimized morphology for efficient exciton dissociation and charge transport
Jung, Buyoung
Kim, Kangmin
Kim, Jungwon
Kim, Sehwan
Kim, Eunkyoung
Kim, Woochul
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2014, 120 : 675 - 684
[30] Recombination in Organic Bulk Heterojunction Solar Cells: Small Dependence of Interfacial Charge Transfer Kinetics on Fullerene Affinity
Guerrero, Antonio
Marchesi, Luis F.
Boix, Pablo P.
Bisquert, Juan
Garcia-Belmonte, Germa
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2012, 3 (10): : 1386 - 1392

← 1 2 3 4 5 →