Please select the desired project time frame:
- July 2026
- January 2026
- July 2025
- January 2025
- July 2024
- January 2024
- July 2023
- January 2023
- July 2022
- January 2022
- July 2021
- January 2021
- July 2020
- January 2020
- July 2019
- January 2019
- July 2018
- January 2018
- July 2017
- January 2017
- July 2016
- January 2016
- July 2015
- January 2015
- July 2014
- January 2014
- July 2013
- January 2013
- July 2012
- January 2012
- July 2011
- January 2011
- July 2010
- January 2010
- July 2009
- January 2009
- July 2008
- January 2008
- July 2007
- January 2007
- July 2006
- January 2006
- July 2005
- January 2005
- July 2004
- January 2004
- July 2003
- January 2003
- July 2002
- January 2002
- July 2001
- January 2001
Start of funding 01.07.2017
Origin of the Open Circuit Voltage in Organic Ternary Solar Cells
Dr. Tayebeth Ameri
Friedrich-Alexander-University of Erlangen-Nuremberg
Department of Materials Science and Engeneering
Prof. Barry C. Thompson
University of Southern California, Los Angeles
Loker Hydrocarbon Research Institute
The open circuit voltage (Voc) in organic ternary solar cells has been a hot research topic for a few years. Apparently, in many ternary blend solar cells the Voc is not limited to the minimum Voc of the binary references. The dependence of Voc on the sensitizer concentration has been reported by several groups. Although different hypotheses are reported in literature to explain the origin of Voc increase, no clear proof and distinguishable approach has been presented so far.
In this work, we will investigate the influence of the sensitizer content on the Voc for different ternary blend systems. To illuminate on the origin of the Voc and to find the share of suppressed energetic losses involved in the Voc enhancement, we will employ different optoelectronic spectroscopy techniques. Furthermore, we will perform Monte Carlo simulation to correlate the experimental results to the literature proposed morphological models. This unprecedented work allows us to correlate nano-morphological features with measured optical properties and obtained Voc, a crucial capability for the design of optimized, high performance ternary solar cells.