AVS 64th International Symposium & Exhibition
    Novel Trends in Synchrotron and FEL-Based Analysis Focus Topic Tuesday Sessions
       Session SA+MI-TuM

Invited Paper SA+MI-TuM3
Understanding Solar Cells Structure and Functioning via GISAXS and GIWAXS

Tuesday, October 31, 2017, 8:40 am, Room 9

Session: Overcoming the Temporal and Spatial Limits of X-Ray Scattering Methods for In-Situ Analysis
Presenter: Peter Müller-Buschbaum, Technische Universität München, Germany
Correspondent: Click to Email

Next generation solar cells are an interesting alternative to conventional silicon based solar cells as the feature new possibilities introduced by using a different class of materials namely polymers. The production of next generation solar cells has the potential to become very cheap and easy. Moreover, the use of polymers allows for flexible solar cells and light weight devices, which will be usable in a very different fashion as compared to the immobile silicon solar panels. In addition, the energy payback times of next generation solar cells are significantly shorter as compared to the today’s silicon solar cells. However, despite all these significant advantages of next generation solar cells, still fundamental knowledge is very limited.

In particular, it is challenging to detect the complex morphologies, which are necessary to have high efficiency organic solar cells. The combination of grazing incidence small and wide angle x-ray scattering (GISAXS and GIWAXS) allows for overcoming these challenges.1-4 The crystalline structure is probed with GIWAXS and the mesoscale structure is determined with GISAXS. Based on selected examples, the impact of different layers in the functional stack build-up of organic solar cells,5,6 in-situ studies during printing7 and in-operando studies of organic solar cells8 are presented.

References

[1] M.A.Ruderer, P.Müller-Buschbaum; Soft Matter 7, 5482-5493 (2011)

[2] P.Müller-Buschbaum; Adv. Mater. 26, 7692-7709 (2014)

[3] A.Hexemer, P.Müller-Buschbaum; IUCrJ 2, 106-125 (2015)

[4] P.Müller-Buschbaum; Polymer Journal (invited review) 45, 34-42 (2013)

[5] S.Guo, M.A.Ruderer, M.Rawolle, V.Körstgens, C.Birkenstock, J.Perlich, P.Müller-Buschbaum; ACS Appl. Mater. Interfaces 5, 8581-8590 (2013)

[6] W.Wang, S.Pröller, M.A.Niedermeier, V.Körstgens, M.Philipp, B.Su, S.Yu, S.V.Roth, P.Müller-Buschbaum; ACS Appl. Mater. Interfaces 7, 602-610 (2015)

[7] C.M.Palumbiny, F.Liu, T.P.Russell, A.Hexemer, C.Wang, P.Müller-Buschbaum; Adv. Mater. 27, 3391-3397 (2015)

[8] C.J.Schaffer, C.M.Palumbiny, M.A.Niedermeier, C.Jendrzejewski, G.Santoro, S.V.Roth, P.Müller-Buschbaum; Adv. Mater. 25, 6760-6764 (2013)