Toward high efficiency of inverted organic solar cells: Concurrent improvement in optical and electrical properties of electron transport layers

S. H. Tsai; S. T. Ho; H. J. Jhuo; C. R. Ho; S. A. Chen; Jr-Hau He

doi:10.1063/1.4812981

Toward high efficiency of inverted organic solar cells: Concurrent improvement in optical and electrical properties of electron transport layers

S. H. Tsai
, S. T. Ho
, H. J. Jhuo
, C. R. Ho
, S. A. Chen
, Jr-Hau He^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

22 Citations (Scopus)

Abstract

The conversion efficiency (η) of organic solar cells (OSCs) constructed with ITO/ZnO/P3HT:PCBM/PEDOT:PSS/Ag is improved by incorporating Al into ZnO films (AZO) as electron transport layers (ETLs). Compared with ZnO films, AZO-based OSCs enhance η by ∼13.9% via improving short-circuit photocurrent density from 10.73 to 11.12 mA cm^-2 and fill factor from 53.7% to 60.8%. Doping Al into ZnO ETLs not only optimizes band alignment between organic active layers and ETLs and increases carrier concentration, conductivity, and bandgap of ZnO films facilitating more light into OSCs but also improves the absorption of P3HT by promoting the molecular ordering of P3HT.

Original language	English
Article number	253111
Journal	Applied Physics Letters
Volume	102
Issue number	25
DOIs	https://doi.org/10.1063/1.4812981
Publication status	Published - 24 Jun 2013
Externally published	Yes

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SDG 7 Affordable and Clean Energy

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@article{77620a98020044a688b42c2c8aba9024,

title = "Toward high efficiency of inverted organic solar cells: Concurrent improvement in optical and electrical properties of electron transport layers",

abstract = "The conversion efficiency (η) of organic solar cells (OSCs) constructed with ITO/ZnO/P3HT:PCBM/PEDOT:PSS/Ag is improved by incorporating Al into ZnO films (AZO) as electron transport layers (ETLs). Compared with ZnO films, AZO-based OSCs enhance η by ∼13.9\% via improving short-circuit photocurrent density from 10.73 to 11.12 mA cm-2 and fill factor from 53.7\% to 60.8\%. Doping Al into ZnO ETLs not only optimizes band alignment between organic active layers and ETLs and increases carrier concentration, conductivity, and bandgap of ZnO films facilitating more light into OSCs but also improves the absorption of P3HT by promoting the molecular ordering of P3HT. ",

author = "Tsai, \{S. H.\} and Ho, \{S. T.\} and Jhuo, \{H. J.\} and Ho, \{C. R.\} and Chen, \{S. A.\} and Jr-Hau He",

year = "2013",

month = jun,

day = "24",

doi = "10.1063/1.4812981",

language = "English",

volume = "102",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Toward high efficiency of inverted organic solar cells

T2 - Concurrent improvement in optical and electrical properties of electron transport layers

AU - Tsai, S. H.

AU - Ho, S. T.

AU - Jhuo, H. J.

AU - Ho, C. R.

AU - Chen, S. A.

AU - He, Jr-Hau

PY - 2013/6/24

Y1 - 2013/6/24

N2 - The conversion efficiency (η) of organic solar cells (OSCs) constructed with ITO/ZnO/P3HT:PCBM/PEDOT:PSS/Ag is improved by incorporating Al into ZnO films (AZO) as electron transport layers (ETLs). Compared with ZnO films, AZO-based OSCs enhance η by ∼13.9% via improving short-circuit photocurrent density from 10.73 to 11.12 mA cm-2 and fill factor from 53.7% to 60.8%. Doping Al into ZnO ETLs not only optimizes band alignment between organic active layers and ETLs and increases carrier concentration, conductivity, and bandgap of ZnO films facilitating more light into OSCs but also improves the absorption of P3HT by promoting the molecular ordering of P3HT.

AB - The conversion efficiency (η) of organic solar cells (OSCs) constructed with ITO/ZnO/P3HT:PCBM/PEDOT:PSS/Ag is improved by incorporating Al into ZnO films (AZO) as electron transport layers (ETLs). Compared with ZnO films, AZO-based OSCs enhance η by ∼13.9% via improving short-circuit photocurrent density from 10.73 to 11.12 mA cm-2 and fill factor from 53.7% to 60.8%. Doping Al into ZnO ETLs not only optimizes band alignment between organic active layers and ETLs and increases carrier concentration, conductivity, and bandgap of ZnO films facilitating more light into OSCs but also improves the absorption of P3HT by promoting the molecular ordering of P3HT.

UR - https://www.scopus.com/pages/publications/84879875356

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84879875356&origin=recordpage

U2 - 10.1063/1.4812981

DO - 10.1063/1.4812981

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 25

M1 - 253111

ER -

Toward high efficiency of inverted organic solar cells: Concurrent improvement in optical and electrical properties of electron transport layers

Abstract

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