期刊
THIN SOLID FILMS
卷 589, 期 -, 页码 125-132出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2015.05.011
关键词
Bulk heterojunction; Insertion layer; Contact-printing; Siloxane oligomer
类别
资金
- National Research Foundation of Korea (KRF) - Korea government (MEST) [2009-0069209]
- National Research Foundation of Korea [2009-0069209] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
'Smart' (or selective) electrode for charge carriers, both electrons and holes, in organic bulk-heterojunction (BHJ) solar cells using insertion layers made of hydrophobically-recovered and contact-printed siloxane oligomers between electrodes and active material has been demonstrated. The siloxane oligomer insertion layer has been formed at a given interface simply by conformally-contacting a cured slab of polydimethylsiloxane stamp for less than 100 s. All the devices, either siloxane oligomer printed at one interface only or printed at both interfaces, showed efficiency enhancement when compared to non-printed ones. The possible mechanism that is responsible for the observed efficiency enhancement has been discussed based on the point of optimum symmetry and photocurrent analysis. Besides its simplicity and large-area applicability, the demonstrated contact-printing technique does not involve any vacuum or wet processing steps and thus can be very useful for the roll-based, continuous production scheme for organic BHJ solar cells. (C) 2015 Elsevier B. V. All rights reserved.
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