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Kim, Jin Young
Next Generation Energy Laboratory
Research Interests
  • Polymer solar cells, QD solar cells, organic-inorganic hybrid solar cells, perovskite solar cells, OLEDs, PeLEDs, organic FETs

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Processing additives for improved efficiency from bulk heterojunction solar cells

Cited 855 times inthomson ciCited 175 times inthomson ci
Title
Processing additives for improved efficiency from bulk heterojunction solar cells
Author
Lee, Jae KwanMa, Wan LiBrabec, Christoph J.Yuen, JonathanMoon, Ji SunKim, Jin YoungLee, KwangheeBazan, Guillermo C.Heeger, Alan J.
Keywords
PHOTOVOLTAIC CELLS; THERMAL-TREATMENT; MORPHOLOGY; POLYTHIOPHENE; PERFORMANCE; DYNAMICS; NETWORK
Issue Date
200803
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.130, no.11, pp.3619 - 3623
Abstract
Two criteria for processing additives introduced to control the morphology of bulk heterojunction (BHJ) materials for use in solar cells have been identified: (i) selective (differential) solubility of the fullerene component and (ii) higher boiling point than the host solvent. Using these criteria, we have investigated the class of 1,8-di(R)octanes with various functional groups (R) as processing additives for BHJ solar cells. Control of the BHJ morphology by selective solubility of the fullerene component is demonstrated using these high boiling point processing additives. The best results are obtained with R = Iodine (1). Using 1,8-diiodooctane as the processing additive, the efficiency of the BHJ solar cells was improved from 3.4% (for the reference device) to 5.1 %.
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DOI
http://dx.doi.org/10.1021/ja710079w
ISSN
0002-7863
Appears in Collections:
ECHE_Journal Papers

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