Performance Characterization of Dye-Sensitized Photovoltaics under Indoor Lighting
Journal
Journal of Physical Chemistry Letters
Journal Volume
8
Journal Issue
8
Pages
1824-1830
Date Issued
2017
Author(s)
Chen C.-Y.
Jian Z.-H.
Huang S.-H.
Lee K.-M.
Kao M.-H.
Shen C.-H.
Shieh J.-M.
Wang C.-L.
Chang C.-W.
Lin B.-Z.
Lin C.-Y.
Chang T.-K.
Chi Y.
Chi C.-Y.
Wang W.-T.
Tai Y.
Lu M.-D.
Tung Y.-L.
Chou P.-T.
Wu W.-T.
Chow T.J.
Chen P.
Luo X.-H.
Lee Y.-L.
Wu C.-C.
Chen C.-M.
Yeh C.-Y.
Fan M.-S.
Peng J.-D.
Liu Y.-N.
Lee H.-Y.
Chen C.-Y.
Lin H.-W.
Yen C.-T.
Huang Y.-C.
Tsao C.-S.
Ting Y.-C.
Wei T.-C.
Wu C.-G.
Abstract
Indoor utilization of emerging photovoltaics is promising; however, efficiency characterization under room lighting is challenging. We report the first round-robin interlaboratory study of performance measurement for dye-sensitized photovoltaics (cells and mini-modules) and one silicon solar cell under a fluorescent dim light. Among 15 research groups, the relative deviation in power conversion efficiency (PCE) of the samples reaches an unprecedented 152%. On the basis of the comprehensive results, the gap between photometry and radiometry measurements and the response of devices to the dim illumination are identified as critical obstacles to the correct PCE. Therefore, we use an illuminometer as a prime standard with a spectroradiometer to quantify the intensity of indoor lighting and adopt the reverse-biased current-voltage (I-V) characteristics as an indicator to qualify the I-V sampling time for dye-sensitized photovoltaics. The recommendations can brighten the prospects of emerging photovoltaics for indoor applications. ? 2017 American Chemical Society.
SDGs
Type
journal article