Exciton dissociation and design optimization in P3HT:PCBM bulk-heterojunction organic solar cell

Monishka Rita Narayan; Jai Singh

doi:10.1139/cjp-2013-0523

Exciton dissociation and design optimization in P3HT:PCBM bulk-heterojunction organic solar cell

Monishka Rita Narayan, Jai Singh

Research Institute for Environment and Livelihoods

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The rate of Frenkel exciton dissociation in P3HT:PCBM bulk-heterojunction organic solar cell was calculated using the newly derived interaction operator between charge transfer exciton and molecular vibrational energy. The PCBM LUMO energy levels were tuned to investigate their impact on the rate of dissociation of a Frenkel exciton into free pair of electron and hole. In the latter part of the study, the PCBM LUMO energy level was set to -4.10 eV and design optimization was performed on PET/PEDOT:PSS/TFB/ P3HT:PCBM/Ca bulk-heterojunction organic solar cell using the semiconducting thin film optics simulation software. Each of the layer thicknesses were optimized for maximum photon absorbance in the P3HT:PCBM active layer and a high power conversion efficiency of 7.46% was obtained.

Original language	English
Pages (from-to)	853-856
Number of pages	4
Journal	Canadian Journal of Physics
Volume	92
Issue number	7-8
Early online date	2014
DOIs	https://doi.org/10.1139/cjp-2013-0523
Publication status	Published - Jul 2014

Bibliographical note

This paper was presented at the 25th International Conference on Amorphous and Nanocrystalline Semiconductors (ICANS25).

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@article{f27211b086a7459f8f912bb51aab40fb,

title = "Exciton dissociation and design optimization in P3HT:PCBM bulk-heterojunction organic solar cell",

abstract = "The rate of Frenkel exciton dissociation in P3HT:PCBM bulk-heterojunction organic solar cell was calculated using the newly derived interaction operator between charge transfer exciton and molecular vibrational energy. The PCBM LUMO energy levels were tuned to investigate their impact on the rate of dissociation of a Frenkel exciton into free pair of electron and hole. In the latter part of the study, the PCBM LUMO energy level was set to -4.10 eV and design optimization was performed on PET/PEDOT:PSS/TFB/ P3HT:PCBM/Ca bulk-heterojunction organic solar cell using the semiconducting thin film optics simulation software. Each of the layer thicknesses were optimized for maximum photon absorbance in the P3HT:PCBM active layer and a high power conversion efficiency of 7.46% was obtained. ",

keywords = "Computer software, Dissociation, Excitons, Heterojunctions, Bulk heterojunction, Charge transfer excitons, Design optimization, Exciton dissociation, High power conversion, Rate of dissociation, Semiconducting thin films, Vibrational energies, Solar cells",

author = "Narayan, {Monishka Rita} and Jai Singh",

note = "This paper was presented at the 25th International Conference on Amorphous and Nanocrystalline Semiconductors (ICANS25).",

year = "2014",

month = jul,

doi = "10.1139/cjp-2013-0523",

language = "English",

volume = "92",

pages = "853--856",

journal = "Canadian Journal of Physics",

issn = "0008-4204",

publisher = "NRC Research Press",

number = "7-8",

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TY - JOUR

T1 - Exciton dissociation and design optimization in P3HT:PCBM bulk-heterojunction organic solar cell

AU - Narayan, Monishka Rita

AU - Singh, Jai

N1 - This paper was presented at the 25th International Conference on Amorphous and Nanocrystalline Semiconductors (ICANS25).

PY - 2014/7

Y1 - 2014/7

N2 - The rate of Frenkel exciton dissociation in P3HT:PCBM bulk-heterojunction organic solar cell was calculated using the newly derived interaction operator between charge transfer exciton and molecular vibrational energy. The PCBM LUMO energy levels were tuned to investigate their impact on the rate of dissociation of a Frenkel exciton into free pair of electron and hole. In the latter part of the study, the PCBM LUMO energy level was set to -4.10 eV and design optimization was performed on PET/PEDOT:PSS/TFB/ P3HT:PCBM/Ca bulk-heterojunction organic solar cell using the semiconducting thin film optics simulation software. Each of the layer thicknesses were optimized for maximum photon absorbance in the P3HT:PCBM active layer and a high power conversion efficiency of 7.46% was obtained.

AB - The rate of Frenkel exciton dissociation in P3HT:PCBM bulk-heterojunction organic solar cell was calculated using the newly derived interaction operator between charge transfer exciton and molecular vibrational energy. The PCBM LUMO energy levels were tuned to investigate their impact on the rate of dissociation of a Frenkel exciton into free pair of electron and hole. In the latter part of the study, the PCBM LUMO energy level was set to -4.10 eV and design optimization was performed on PET/PEDOT:PSS/TFB/ P3HT:PCBM/Ca bulk-heterojunction organic solar cell using the semiconducting thin film optics simulation software. Each of the layer thicknesses were optimized for maximum photon absorbance in the P3HT:PCBM active layer and a high power conversion efficiency of 7.46% was obtained.

KW - Computer software

KW - Dissociation

KW - Excitons

KW - Heterojunctions

KW - Bulk heterojunction

KW - Charge transfer excitons

KW - Design optimization

KW - Exciton dissociation

KW - High power conversion

KW - Rate of dissociation

KW - Semiconducting thin films

KW - Vibrational energies

KW - Solar cells

UR - http://www.scopus.com/inward/record.url?scp=84904365744&partnerID=8YFLogxK

U2 - 10.1139/cjp-2013-0523

DO - 10.1139/cjp-2013-0523

M3 - Article

SN - 0008-4204

VL - 92

SP - 853

EP - 856

JO - Canadian Journal of Physics

JF - Canadian Journal of Physics

IS - 7-8

ER -

Exciton dissociation and design optimization in P3HT:PCBM bulk-heterojunction organic solar cell

Abstract

Bibliographical note

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