TY - JOUR
T1 - In situ study of degradation in p3ht-titania-based solid-state dye-sensitized solar cells
AU - Song, Lin
AU - Wang, Weijia
AU - Pröller, Stephan
AU - González, Daniel Moseguí
AU - Schlipf, Johannes
AU - Schaffer, Christoph J.
AU - Peters, Kristina
AU - Herzig, Eva M.
AU - Bernstorff, Sigrid
AU - Bein, Thomas
AU - Fattakhova-Rohlfing, Dina
AU - Müller-Buschbaum, Peter
N1 - Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/5/12
Y1 - 2017/5/12
N2 - The degradation of poly(3-hexylthiophene) (P3HT)- titania-based solid-state dye-sensitized solar cells (ssDSSCs) is studied to better understand device aging mechanisms. The correlation of temporal evolution between P3HT crystallite structures and device performance is discussed for the first time using in situ measurements. For comparison, two types of mesoporous titania photoanodes with different pore sizes are prepared. Grazing incidence wide-Angle X-ray scattering is used in situ under continuous solar illumination to obtain information about the impact of pore size on P3HT crystalline order and on temporal evolution of the P3HT crystallites. The development of the photovoltaic characteristics is explored in parallel. The lattice constants, crystal sizes, and volume fraction of crystalline P3HT in the large-pore active layer remain stable over 30 min, while the volume fraction of crystalline P3HT decreases in the small-pore active layer. Thus, the pore size of titania photoanodes is important for the stability of P3HT-titania-based ssDSSCs.
AB - The degradation of poly(3-hexylthiophene) (P3HT)- titania-based solid-state dye-sensitized solar cells (ssDSSCs) is studied to better understand device aging mechanisms. The correlation of temporal evolution between P3HT crystallite structures and device performance is discussed for the first time using in situ measurements. For comparison, two types of mesoporous titania photoanodes with different pore sizes are prepared. Grazing incidence wide-Angle X-ray scattering is used in situ under continuous solar illumination to obtain information about the impact of pore size on P3HT crystalline order and on temporal evolution of the P3HT crystallites. The development of the photovoltaic characteristics is explored in parallel. The lattice constants, crystal sizes, and volume fraction of crystalline P3HT in the large-pore active layer remain stable over 30 min, while the volume fraction of crystalline P3HT decreases in the small-pore active layer. Thus, the pore size of titania photoanodes is important for the stability of P3HT-titania-based ssDSSCs.
UR - http://www.scopus.com/inward/record.url?scp=85027984480&partnerID=8YFLogxK
U2 - 10.1021/acsenergylett.7b00117
DO - 10.1021/acsenergylett.7b00117
M3 - Article
AN - SCOPUS:85027984480
SN - 2380-8195
VL - 2
SP - 991
EP - 997
JO - ACS Energy Letters
JF - ACS Energy Letters
IS - 5
ER -
