Proceedings of 6th International Conference on Hybrid and Organic Photovoltaics (HOPV14)
Publication date: 1st March 2014
Colloidal quantum dot (CQD) solar cells with solution-producible absorber layers have made rapid progress in the last few years. In particular, the so-called depleted heterojunction concept, consisting of a wide band gap n-type semiconductor and a p-type CQD film as absorber, appears promising. Here, we study the potential of CuInS2 nanocrystals (NCs) as a relevant alternative to the toxic Pb or Cd compounds for usage in depleted heterojunction solar cells. Two different layer stacks, based on a bilayer heterojunction between CIS and ZnO NCs, were investigated by means of high resolution electron microscopy and optical modeling. We applied variable-angle spectroscopic ellipsometry to derive the optical constants of the involved layers. These data served as input parameters into optical simulations in order to estimate light absorption in the individual layers of the device stack with the transfer matrix formalism. Furthermore we investigated the distribution of the electric field throughout the device in dependence of the ZnO optical spacer thickness. Here, we present the simulated data in comparison with experimental results.
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International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
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