Coloring Semitransparent Perovskite Solar Cells via Dielectric Mirrors

Journal article
(Original article)


Publication Details

Author(s): Ramírez Quiroz CO, Bronnbauer C, Levchuk I, Hou Y, Brabec C, Forberich K
Journal: ACS nano
Publisher: American Chemical Society
Publication year: 2016
Volume: 10
Journal issue: 5
Pages range: 5104-5112
ISSN: 1936-0851
eISSN: 1936-086X
Language: English


Abstract


While perovskite-based semitransparent solar cells for window applications show competitive levels of transparency and efficiency compared to organic photovoltaics, the color perception of the perovskite films is highly restricted because band gap engineering results in losses in power conversion efficiencies. To overcome the limitation in visual aesthetics, we combined semitransparent perovskite solar cells with dielectric mirrors. This approach enables one to tailor the device appearance to almost any desired color and simultaneously offers additional light harvesting for the solar cell. In the present work, opto-electrical effects are investigated through quantum efficiency and UV-to-visible spectroscopic measurements. Likewise, a detailed chromaticity analysis, featuring the transmissive and reflective color perception of the device including the mirror, from both sides and in different illumination conditions, is presented and analyzed. Photocurrent density enhancement of up to 21% along with overall device transparency values of up to 31% (4.2% efficiency) is demonstrated for cells showing a colored aesthetic appeal. Finally, a series of simulations emulating the device chromaticity, transparency, and increased photocurrent density as a function of the photoactive layer thickness and the design wavelength of the dielectric mirror are presented. Our simulations and their experimental validation enabled us to establish the design rules that consider the color efficiency/transparency interplay for real applications.



FAU Authors / FAU Editors

Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Bronnbauer, Carina
Institute Materials for Electronics and Energy Technology (i-MEET)
Forberich, Karen Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Hou, Yi
Institute Materials for Electronics and Energy Technology (i-MEET)
Levchuk, Ievgen
Institute Materials for Electronics and Energy Technology (i-MEET)
Ramírez Quiroz, César Omar
Institute Materials for Electronics and Energy Technology (i-MEET)


Additional Organisation
Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden
Exzellenz-Cluster Engineering of Advanced Materials
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)


Research Fields

B Nanoelectronic Materials
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Ramírez Quiroz, C.O., Bronnbauer, C., Levchuk, I., Hou, Y., Brabec, C., & Forberich, K. (2016). Coloring Semitransparent Perovskite Solar Cells via Dielectric Mirrors. ACS nano, 10(5), 5104-5112. https://dx.doi.org/10.1021/acsnano.6b00225

MLA:
Ramírez Quiroz, César Omar, et al. "Coloring Semitransparent Perovskite Solar Cells via Dielectric Mirrors." ACS nano 10.5 (2016): 5104-5112.

BibTeX: 

Last updated on 2019-03-06 at 16:36