BROWSE

Related Researcher

Author's Photo

Jang, Sung-Yeon
Renewable Energy and Nanoelectronics Lab.
Research Interests
  • - 유기 태양전지
  • - 콜로이드 양자점 태양전지
  • - 페로브스카이트 태양전지
  • - 열전
  • - 분자 전자

ITEM VIEW & DOWNLOAD

11% Organic Photovoltaic Devices Based on PTB7-Th: PC71BM Photoactive Layers and Irradiation-Assisted ZnO Electron Transport Layers

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
11% Organic Photovoltaic Devices Based on PTB7-Th: PC71BM Photoactive Layers and Irradiation-Assisted ZnO Electron Transport Layers
Author
Aqoma, HavidPark, SujungPark, Hye-YunHadmojo, Wisnu TantyoOh, Seung-HwanNho, SunghoKim, Do HuiSeo, JeonghoonPark, SungminRyu, Du YeolCho, ShinukJang, Sung-Yeon
Issue Date
2018-07
Publisher
WILEY
Citation
ADVANCED SCIENCE, v.5, no.7, pp.1700858
Abstract
The enhancement of interfacial charge collection efficiency using buffer layers is a cost-effective way to improve the performance of organic photovoltaic devices (OPVs) because they are often universally applicable regardless of the active materials. However, the availability of high-performance buffer materials, which are solution-processable at low temperature, are limited and they often require burdensome additional surface modifications. Herein, high-performance ZnO based electron transporting layers (ETLs) for OPVs are developed with a novel gamma-ray-assisted solution process. Through careful formulation of the ZnO precursor and gamma-ray irradiation, the pre-formation of ZnO nanoparticles occurs in the precursor solutions, which enables the preparation of high quality ZnO films. The gamma-ray assisted ZnO (ZnO-G) films possess a remarkably low defect density compared to the conventionally prepared ZnO films. The low-defect ZnO-G films can improve charge extraction efficiency of ETL without any additional treatment. The power conversion efficiency (PCE) of the device using the ZnO-G ETLs is 11.09% with an open-circuit voltage (V-OC), short-circuit current density (J(SC)), and fill factor (FF) of 0.80 V, 19.54 mA cm(-2), and 0.71, respectively, which is one of the best values among widely studied poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b;4,5-b']dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene-)-2-carboxylate-2-6-diyl)]: [6,6]-phenyl-C-71-butyric acid methyl ester (PTB7-Th:PC71BM)-based devices.
URI
https://scholarworks.unist.ac.kr/handle/201301/26761
URL
https://onlinelibrary.wiley.com/doi/full/10.1002/advs.201700858
DOI
10.1002/advs.201700858
ISSN
2198-3844
Appears in Collections:
ECHE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU