Controlling open-circuit voltage of organic photovoltaic cells by inserting thin layer of Zn-phthalocyanine at pentacene/C60 interface

Yoshiki Kinoshita; Taku Hasobe; Hideyuki Murata

doi:10.1143/JJAP.47.1234

Controlling open-circuit voltage of organic photovoltaic cells by inserting thin layer of Zn-phthalocyanine at pentacene/C₆₀ interface

Yoshiki Kinoshita, Taku Hasobe, Hideyuki Murata

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

14 Citations (Scopus)

Abstract

We demonstrate organic photovoltaic cells composed of multi charge-separation (MCS) interfaces in the active layer for the improvement of power conversion efficiency (η_p). The MCS interfaces are composed of pentacene/C₆₀ and Zn-phthalocyanine (ZnPc)/C₆₀ by inserting thin layer of ZnPc at the CS interface between pentacene/C ₆₀. We obtain enhanced η_p and V_oc in accordance with the increased energy difference between the lowest unoccupied molecular orbital (LUMO) level of the n-type material (C₆₀) and the HOMO level of the p-type material (ZnPc). By inserting 2nm ZnPc at the interface, both open-circuit voltage (V_oc) and short-circuit current density (J_sc) have been improved simultaneously and the resulting η_p reaches 2.07%.

Original language	English
Pages (from-to)	1234-1237
Number of pages	4
Journal	Japanese journal of applied physics
Volume	47
Issue number	2 PART 2
DOIs	https://doi.org/10.1143/JJAP.47.1234
Publication status	Published - 2008 Feb 15
Externally published	Yes

Keywords

Multi charge separation (MCS) interfaces
V and J controlled independently

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1143/JJAP.47.1234

Cite this

@article{87a3a0e1e4014d5dad546f13e43024cf,

title = "Controlling open-circuit voltage of organic photovoltaic cells by inserting thin layer of Zn-phthalocyanine at pentacene/C60 interface",

abstract = "We demonstrate organic photovoltaic cells composed of multi charge-separation (MCS) interfaces in the active layer for the improvement of power conversion efficiency (ηp). The MCS interfaces are composed of pentacene/C60 and Zn-phthalocyanine (ZnPc)/C60 by inserting thin layer of ZnPc at the CS interface between pentacene/C 60. We obtain enhanced ηp and Voc in accordance with the increased energy difference between the lowest unoccupied molecular orbital (LUMO) level of the n-type material (C60) and the HOMO level of the p-type material (ZnPc). By inserting 2nm ZnPc at the interface, both open-circuit voltage (Voc) and short-circuit current density (Jsc) have been improved simultaneously and the resulting ηp reaches 2.07%.",

keywords = "Multi charge separation (MCS) interfaces, V and J controlled independently",

author = "Yoshiki Kinoshita and Taku Hasobe and Hideyuki Murata",

year = "2008",

month = feb,

day = "15",

doi = "10.1143/JJAP.47.1234",

language = "English",

volume = "47",

pages = "1234--1237",

journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

number = "2 PART 2",

}

TY - JOUR

T1 - Controlling open-circuit voltage of organic photovoltaic cells by inserting thin layer of Zn-phthalocyanine at pentacene/C60 interface

AU - Kinoshita, Yoshiki

AU - Hasobe, Taku

AU - Murata, Hideyuki

PY - 2008/2/15

Y1 - 2008/2/15

N2 - We demonstrate organic photovoltaic cells composed of multi charge-separation (MCS) interfaces in the active layer for the improvement of power conversion efficiency (ηp). The MCS interfaces are composed of pentacene/C60 and Zn-phthalocyanine (ZnPc)/C60 by inserting thin layer of ZnPc at the CS interface between pentacene/C 60. We obtain enhanced ηp and Voc in accordance with the increased energy difference between the lowest unoccupied molecular orbital (LUMO) level of the n-type material (C60) and the HOMO level of the p-type material (ZnPc). By inserting 2nm ZnPc at the interface, both open-circuit voltage (Voc) and short-circuit current density (Jsc) have been improved simultaneously and the resulting ηp reaches 2.07%.

AB - We demonstrate organic photovoltaic cells composed of multi charge-separation (MCS) interfaces in the active layer for the improvement of power conversion efficiency (ηp). The MCS interfaces are composed of pentacene/C60 and Zn-phthalocyanine (ZnPc)/C60 by inserting thin layer of ZnPc at the CS interface between pentacene/C 60. We obtain enhanced ηp and Voc in accordance with the increased energy difference between the lowest unoccupied molecular orbital (LUMO) level of the n-type material (C60) and the HOMO level of the p-type material (ZnPc). By inserting 2nm ZnPc at the interface, both open-circuit voltage (Voc) and short-circuit current density (Jsc) have been improved simultaneously and the resulting ηp reaches 2.07%.

KW - Multi charge separation (MCS) interfaces

KW - V and J controlled independently

UR - http://www.scopus.com/inward/record.url?scp=54249142193&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54249142193&partnerID=8YFLogxK

U2 - 10.1143/JJAP.47.1234

DO - 10.1143/JJAP.47.1234

M3 - Article

AN - SCOPUS:54249142193

VL - 47

SP - 1234

EP - 1237

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 2 PART 2

ER -