TY - JOUR
T1 - Semitransparent organic photovoltaic cells
AU - Bailey-Salzman, Rhonda F.
AU - Rand, Barry P.
AU - Forrest, Stephen R.
N1 - Funding Information:
This work was supported in part by funds from the Air Force Office of Scientific Research, the National Renewable Energy Laboratory (NREL), and Global Photonic Energy Corp., Ewing, NJ.
PY - 2006/6/5
Y1 - 2006/6/5
N2 - We demonstrate semitransparent, small molecular weight organic solar cells employing a thin silver/indium tin oxide compound cathode with a maximum transmission of (60±6) % averaged over the visible spectral range and with a power conversion efficiency, p = (0.28±0.03) % under simulated, AM1.5G, 1 sun illumination. By increasing the Ag thickness, an average transmission of (26±3) % is achieved with p = (0.62±0.06) %, a value approximately half of that obtained for the same structure employing a conventional, reflective, and thick Ag cathode. A semitransparent tandem organic solar cell with p = (0.48±0.02) % and an average transmission of (44±4) % is also demonstrated. Semitransparent organic photovoltaic cells have potential uses as tinted and power-generating thin-film coatings on architectural surfaces, such as windows and walls. The use of a transparent top electrode also significantly simplifies the design of tandem cells, relaxing requirements for the placement of different absorbing materials at the maxima of optical fields introduced by reflective cathodes.
AB - We demonstrate semitransparent, small molecular weight organic solar cells employing a thin silver/indium tin oxide compound cathode with a maximum transmission of (60±6) % averaged over the visible spectral range and with a power conversion efficiency, p = (0.28±0.03) % under simulated, AM1.5G, 1 sun illumination. By increasing the Ag thickness, an average transmission of (26±3) % is achieved with p = (0.62±0.06) %, a value approximately half of that obtained for the same structure employing a conventional, reflective, and thick Ag cathode. A semitransparent tandem organic solar cell with p = (0.48±0.02) % and an average transmission of (44±4) % is also demonstrated. Semitransparent organic photovoltaic cells have potential uses as tinted and power-generating thin-film coatings on architectural surfaces, such as windows and walls. The use of a transparent top electrode also significantly simplifies the design of tandem cells, relaxing requirements for the placement of different absorbing materials at the maxima of optical fields introduced by reflective cathodes.
UR - http://www.scopus.com/inward/record.url?scp=33745052324&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33745052324&partnerID=8YFLogxK
U2 - 10.1063/1.2209176
DO - 10.1063/1.2209176
M3 - Article
AN - SCOPUS:33745052324
SN - 0003-6951
VL - 88
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 23
M1 - 233502
ER -