Microbes based printing for fabrication of microlenses for organic light emitting diodes.
IR@CFTRI: CSIR-Central Food Technological Research Institute, Mysore
View Archive Info| Field | Value | |
| Relation |
http://ir.cftri.com/13339/
http://dx.doi.org/10.1016/j.orgel.2016.05.023 |
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| Title |
Microbes based printing for fabrication of microlenses for organic
light emitting diodes.
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| Creator |
Sunita, Mehta
Saravanan, M. Balaji, Prakash Mr, Deepak |
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| Subject |
04 Microbiology
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| Description |
We have demonstrated a novel method to fabricate microlenses for organic light emitting diodes (OLEDs)
using templates of patterned microbes. Saccharomyces cerevisiae (Baker’s yeast), generally used in a
microbiology laboratory, is allowed or restricted to grow in selected areas on a polyvinylidene fluoride
(PVDF) membrane, which acts as a substrate. The process comprises of two autonomous approaches,
namely, microbial and antimicrobial approaches, which employ inkjet printing for dispensing a suitable
ink. The ink is a culture of microbes in the case of microbial approach and an antimicrobial agent in the
antimicrobial approach. Once a three dimensional pattern evolves as a consequence of microbial growth,
the substrate serves as a template for casting polydimethyl siloxane (PDMS) microlenses. Among the two
approaches, antimicrobial approach presents a pattern with low packing density of microlenses. But,
microbial approach results into a densely packed array of microlenses with a significant randomness in
the distribution of their diameter and height, as required for efficient light out-coupling. The microlenses
obtained from both the approaches are attached to the air side of the glass in all three red, green and blue
OLEDs. The luminance was measured with and without these microlenses. A maximum enhancement of
1.24X was attained.
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| Date |
2016
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| Type |
Article
PeerReviewed |
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| Format |
pdf
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| Language |
en
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| Identifier |
http://ir.cftri.com/13339/1/Organic%20Electronics%20Volume%2035%2C%20August%202016%2C%20Pages%20199-207.pdf
Sunita, Mehta and Saravanan, M. and Balaji, Prakash and Mr, Deepak (2016) Microbes based printing for fabrication of microlenses for organic light emitting diodes. Organic Electronics, 35. pp. 199-207. |
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