Improvement in the efficiency of organic solar cells using a low-temperature evaporable optical spacer

Hyung Jun Song; Jun Young Kim; Yongwon Kwon; Youngjun Ko; Donggu Lee; Ho Jung Syn; Jiyun Song; Jeonghun Kwak; Changhee Lee

doi:10.7567/JJAP.53.08NJ04

Improvement in the efficiency of organic solar cells using a low-temperature evaporable optical spacer

Hyung Jun Song, Jun Young Kim, Yongwon Kwon, Youngjun Ko, Donggu Lee, Ho Jung Syn, Jiyun Song, Jeonghun Kwak, Changhee Lee

Dept. of Safety Engineering

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

2 Scopus citations

Abstract

We demonstrate the enhancement in performance of organic solar cells (OSCs) by employing a low-temperature evaporable optical spacer, consisting of potassium borohydride (KBH₄) and bathophenanthroline (Bphen) (0:2 : 1, volume ratio). Since the KBH₄-doped Bphen shows improved electron transporting properties and high transparency in the visible range, it can be used as an efficient optical spacer layer that can maximize the internal electrical field distribution in the active layer. As a result, the power conversion efficiency of the OSCs having the KBH₄-doped Bphen with an optimized thickness was improved by 15% in comparison with the device with the non-KBH₄-doped Bphen.

Original language	English
Article number	08NJ04
Journal	Japanese Journal of Applied Physics
Volume	53
Issue number	8 SPEC. ISSUE 3
DOIs	https://doi.org/10.7567/JJAP.53.08NJ04
State	Published - Aug 2014

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title = "Improvement in the efficiency of organic solar cells using a low-temperature evaporable optical spacer",

abstract = "We demonstrate the enhancement in performance of organic solar cells (OSCs) by employing a low-temperature evaporable optical spacer, consisting of potassium borohydride (KBH4) and bathophenanthroline (Bphen) (0:2 : 1, volume ratio). Since the KBH4-doped Bphen shows improved electron transporting properties and high transparency in the visible range, it can be used as an efficient optical spacer layer that can maximize the internal electrical field distribution in the active layer. As a result, the power conversion efficiency of the OSCs having the KBH4-doped Bphen with an optimized thickness was improved by 15% in comparison with the device with the non-KBH4-doped Bphen.",

author = "Song, {Hyung Jun} and Kim, {Jun Young} and Yongwon Kwon and Youngjun Ko and Donggu Lee and Syn, {Ho Jung} and Jiyun Song and Jeonghun Kwak and Changhee Lee",

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T1 - Improvement in the efficiency of organic solar cells using a low-temperature evaporable optical spacer

AU - Song, Hyung Jun

AU - Kim, Jun Young

AU - Kwon, Yongwon

AU - Ko, Youngjun

AU - Lee, Donggu

AU - Syn, Ho Jung

AU - Song, Jiyun

AU - Kwak, Jeonghun

AU - Lee, Changhee

PY - 2014/8

Y1 - 2014/8

N2 - We demonstrate the enhancement in performance of organic solar cells (OSCs) by employing a low-temperature evaporable optical spacer, consisting of potassium borohydride (KBH4) and bathophenanthroline (Bphen) (0:2 : 1, volume ratio). Since the KBH4-doped Bphen shows improved electron transporting properties and high transparency in the visible range, it can be used as an efficient optical spacer layer that can maximize the internal electrical field distribution in the active layer. As a result, the power conversion efficiency of the OSCs having the KBH4-doped Bphen with an optimized thickness was improved by 15% in comparison with the device with the non-KBH4-doped Bphen.

AB - We demonstrate the enhancement in performance of organic solar cells (OSCs) by employing a low-temperature evaporable optical spacer, consisting of potassium borohydride (KBH4) and bathophenanthroline (Bphen) (0:2 : 1, volume ratio). Since the KBH4-doped Bphen shows improved electron transporting properties and high transparency in the visible range, it can be used as an efficient optical spacer layer that can maximize the internal electrical field distribution in the active layer. As a result, the power conversion efficiency of the OSCs having the KBH4-doped Bphen with an optimized thickness was improved by 15% in comparison with the device with the non-KBH4-doped Bphen.

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DO - 10.7567/JJAP.53.08NJ04

M3 - Article

AN - SCOPUS:84906053866

SN - 0021-4922

VL - 53

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 8 SPEC. ISSUE 3

M1 - 08NJ04

ER -

Improvement in the efficiency of organic solar cells using a low-temperature evaporable optical spacer

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