Low cost, nanometer scale nanoimprinting – Application to organic solar cells optimization
Source abstract
Abstract
Abstract We show that nanoimprinting can be robust and reliable enough to be compatible with device optimization procedure. This is enabled by a method for producing nanoimprint master stamps using block copolymer lithography. This method is not only robust and low cost but it also allows patterning with nanometer size features over centimeter scale area. The large number of stamps easily produced in parallel are used to fabricate organic solar cells with controlled interpenetrating heterojunction. The power conversion efficiency is shown to increase with the pattern depth reaching a two fold increase for only ∼35 nm deep pattern.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Organic Electronics and Photovoltaics · Nanofabrication and Lithography Techniques · Block Copolymer Self-Assembly
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Bulk heterojunction solar cells with internal quantum efficiency approaching 100%10.1038/nphoton.2009.69 ↗
2. Polymer photovoltaic cells – enhanced efficiencies via a network of internal donor–acceptor heterojunctions10.1126/science.270.5243.1789 ↗
3. Efficient photodiodes from interpenetrating polymer networks10.1038/376498a0 ↗
4. Effect of molecular aggregation by thermal treatment on photovoltaic properties of MEH-PPV: fullerene-based solar cells10.1016/j.solmat.2008.10.025 ↗
5. Recent progress in polymer solar cells: manipulation of polymer: fullerene morphology and the formation of efficient inverted polymer solar cells10.1002/adma.200802854 ↗
6. The role of processing in the fabrication and optimization of plastic solar cells10.1002/adma.200802559 ↗
7. Photocrosslinkable polythiophenes for efficient, thermally stable, organic photovoltaics10.1002/adfm.200900043 ↗
8. Reappraising the need for bulk heterojunctions in polymer-fullerene photovoltaics: the role of carrier transport in all-solution-processed P3HT/PCBM bilayer solar cells10.1021/jp9050897 ↗
9. Implementation of a submicrometer patterning technique in azopolymer films towards optimization of photovoltaic solar cells efficiency10.1016/j.tsf.2005.12.017 ↗
10. Design of nanostructure for photoelectric conversion by vertical organic superlattice10.1002/ecjb.20233 ↗
11. The use of nanoimprint lithography to improve efficiencies of bilayer organic solar cells based on P3HT and a small molecule acceptor10.1016/j.tsf.2009.05.024 ↗
12. Formation of nanopatterned polymer blends in photovoltaic devices10.1021/nl904098m ↗
13. Trapping light in polymer photodiodes with soft embossed gratings10.1002/(SICI)1521-4095(200002)12:3<189::AID-ADMA189>3.0.CO;2-2 ↗
14. Soft lithography10.1146/annurev.matsci.28.1.153 ↗
15. Nanoimprint lithography10.1116/1.588605 ↗
16. Sub-10nm imprint lithography and applications10.1116/1.589752 ↗
17. 2D nano/micro hybrid patterning using soft/block copolymer lithography10.1016/j.msec.2003.09.021 ↗
18. Low-cost fabrication of submicron all polymer field effect transistors10.1063/1.2191088 ↗
19. Nanoimprinted semiconducting polymer films with 50nm features and their application to organic heterojunction solar cells10.1088/0957-4484/19/42/424016 ↗
20. Flexible conjugated polymer photovoltaic cells with controlled heterojunctions fabricated using nanoimprint lithography10.1063/1.2715036 ↗
21. Solvent annealed thin films of asymmetric polyisoprene–polylactide diblock copolymers10.1021/ma061163w ↗
22. Nanoscopic templates from oriented block copolymer films10.1002/(SICI)1521-4095(200006)12:11<787::AID-ADMA787>3.0.CO;2-1 ↗
23. J.F. Rabek, B. Ranby, Photodegradation, Photo-Oxidation and Photostabilization of Polymers, Wiley, New York, 1975.
24. Patterned electrode vertical field effect transistor fabricated using block copolymer nanotemplates10.1063/1.3266855 ↗
25. Thermally stable, efficient polymer solar cells with nanoscale control of the interpenetrating network morphology10.1002/adfm.200500211 ↗
26. Interdiffusion of PCBM and P3HT reveals miscibility in a photovoltaically active blend10.1002/aenm.201000023 ↗
27. Spontaneous formation of bulk heterojunction nanostructures: multiple routes to equivalent morphologies10.1021/nl200056p ↗
28. Unexpected solid-solid intermixing in a bilayer of poly(3-hexylthiophene) and [6,6]-phenyl C61-butyric acidmethyl ester via stamping transfer10.1016/j.orgel.2010.05.018 ↗
29. Efficiency improvement of blended poly(3-hexylthiophene) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C-61 solar cells by nanoimprinting10.1063/1.3117226 ↗