%0 Journal Article %1 AENM:AENM201502011 %A Engmann, Sebastian %A Bokel, Felicia A. %A Ro, Hyun Wook %A DeLongchamp, Dean M. %A Richter, Lee J. %D 2016 %J Advanced Energy Materials %K PL-measuring organic processing %N 10 %P n/a--n/a %R 10.1002/aenm.201502011 %T Real-Time Photoluminescence Studies of Structure Evolution in Organic Solar Cells %U http://dx.doi.org/10.1002/aenm.201502011 %V 6 %X A method to study the structural evolution of organic bulk heterojunctions via real-time, in-situ, steady-state photoluminescence (PL) is presented. In-situ PL, in combination with real-time transmission and reflection measurements, allows us to quantitatively describe the progression of intimate mixing during blade coating of two OPV systems: the common model system poly(3-hexylthiophene-2,5-diyl)/phenyl-C61-butyric-acid-methyl ester (P3HT/PCBM), and the higher power conversion efficiency system 7,7′-(4,4bis(2-ethylhexyl)-4H-silolo3,2-b:4,5-b′dithiophene-2,6-diyl)bis(6-fluoro-5-(5′-hexyl-2,2′-bithiophen-5-yl)benzoc1,2,5thiadiazaole), p-DTS(FBTTh2)2/70PCBM. Evaluating the time dependence of the PL intensity during drying using a 3D-random-walk diffusion model allows for the quantitative determination of the ratio of characteristic domain size to exciton diffusion length during solidification in the presence of the processing additives 1-chloronaphtalene (CN), 1,8-octanedithiol (ODT), and 1,8-diiodooctane (DIO). In both cases, the obtained results are in good agreement with the typically observed fibril widths and grain sizes, for P3HT and p-DTS(FBTTh2)2, respectively.

@article{AENM:AENM201502011, abstract = {A method to study the structural evolution of organic bulk heterojunctions via real-time, in-situ, steady-state photoluminescence (PL) is presented. In-situ PL, in combination with real-time transmission and reflection measurements, allows us to quantitatively describe the progression of intimate mixing during blade coating of two OPV systems: the common model system poly(3-hexylthiophene-2,5-diyl)/phenyl-C61-butyric-acid-methyl ester (P3HT/PCBM), and the higher power conversion efficiency system 7,7′-(4,4bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b′]dithiophene-2,6-diyl)bis(6-fluoro-5-(5′-hexyl-[2,2′-bithiophen]-5-yl)benzo[c][1,2,5]thiadiazaole), p-DTS(FBTTh2)2/[70]PCBM. Evaluating the time dependence of the PL intensity during drying using a 3D-random-walk diffusion model allows for the quantitative determination of the ratio of characteristic domain size to exciton diffusion length during solidification in the presence of the processing additives 1-chloronaphtalene (CN), 1,8-octanedithiol (ODT), and 1,8-diiodooctane (DIO). In both cases, the obtained results are in good agreement with the typically observed fibril widths and grain sizes, for P3HT and p-DTS(FBTTh2)2, respectively.}, added-at = {2016-08-19T10:14:00.000+0200}, author = {Engmann, Sebastian and Bokel, Felicia A. and Ro, Hyun Wook and DeLongchamp, Dean M. and Richter, Lee J.}, biburl = {https://www.bibsonomy.org/bibtex/2422d6eafca88d63a38d23868499a40da/bretschneider_m}, description = {Real-Time Photoluminescence Studies of Structure Evolution in Organic Solar Cells - Engmann - 2016 - Advanced Energy Materials - Wiley Online Library}, doi = {10.1002/aenm.201502011}, interhash = {4f04f864b7355f9959ad992383f3a4e7}, intrahash = {422d6eafca88d63a38d23868499a40da}, issn = {1614-6840}, journal = {Advanced Energy Materials}, keywords = {PL-measuring organic processing}, number = 10, pages = {n/a--n/a}, timestamp = {2016-08-19T10:14:00.000+0200}, title = {Real-Time Photoluminescence Studies of Structure Evolution in Organic Solar Cells}, url = {http://dx.doi.org/10.1002/aenm.201502011}, volume = 6, year = 2016 }