Inverted polymer solar cells with amorphous indium zinc oxide as the electron-collecting electrode

Journal Article · Fri Sep 17 00:00:00 EDT 2010 · Opt. Express

DOI:https://doi.org/10.1364/OE.18.00A506· OSTI ID:1064775

Cheun, Hyeunseok ^[1]; Kim, Jungbae ^[1]; Zhou, Yinhua ^[1]; Fang, Yunnan ^[2]; Dindar, Amir ^[1]; Shim, Jae Won ^[1]; Fuentes-Hernandez, Canek ^[1]; Sandhage, Kenneth H. ^[2]; Kippelen, Bernard ^[1]

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1. Georgia Inst. of Technology, Atlanta, GA (United States). Center for Organic Photonics and Electronics, School of Electrical and Computer Engineering
2. School of Materials Science and Engineering, Atlanta, GA (United States)

We report on the fabrication and performance of polymer-based inverted solar cells utilizing amorphous indium zinc oxide (a-IZO) as the electron-collecting electrode. Amorphous IZO films of 200 nm thickness were deposited by room temperature sputtering in a high-purity argon atmosphere. The films possessed a high optical transmittance in the visible region (≥ 80%), a low resistivity (3.3 × 10^-4 Ωcm), a low surface roughness (root mean square = 0.68 nm), and a low work function (4.46 ± 0.02 eV). Inverted solar cells with the structure a-IZO/P3HT: PCBM/PEDOT:PSS/Ag exhibited a power conversion efficiency of 3% estimated for AM 1.5G, 100 mW/cm² illumination.

• Research Organization: Energy Frontier Research Centers (EFRC) (United States). Center for Interface Science: Solar Electric Materials (CISSEM)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• DOE Contract Number: SC0001084
• OSTI ID: 1064775
• Journal Information: Opt. Express, Vol. 18, Issue S4; Related Information: CISSEM partners with the University of Arizona (lead); Georgia Institute of Technology; National Renewable Energy Laboratory; Princeton University; University of Washington; ISSN 1094--4087
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
solar (photovoltaic)
electrodes - solar
charge transport
synthesis (novel materials)
synthesis (self-assembly)
synthesis (scalable processing)