This is not the latest version of this item. The latest version can be found here.
Denatured M13 Bacteriophage‐Templated Perovskite Solar Cells Exhibiting High Efficiency
Name
advs.202000782.pdf
Description
Published version
Size
3.67 MB
Format
Adobe PDF
Checksum (MD5)
fdf22e2654802c59b4af02586c249430
Author(s)
Lin, Hao-Sheng
Lee, Jong-Min
Han, Jiye
Lee, Changsoo
Seo, Seungju
Tan, Shaun
Lee, Hyuck Mo
Choi, Eun Jung
Strano, Michael S
Yang, Yang
Date Issued
2020
Journal
Advanced Science
Publisher
Wiley
Version
Final published version
Abstract
© 2020 The Authors. Published by Wiley-VCH GmbH The M13 bacteriophage, a nature-inspired environmentally friendly biomaterial, is used as a perovskite crystal growth template and a grain boundary passivator in perovskite solar cells. The amino groups and carboxyl groups of amino acids on the M13 bacteriophage surface function as Lewis bases, interacting with the perovskite materials. The M13 bacteriophage-added perovskite films show a larger grain size and reduced trap-sites compared with the reference perovskite films. In addition, the existence of the M13 bacteriophage induces light scattering effect, which enhances the light absorption particularly in the long-wavelength region around 825 nm. Both the passivation effect of the M13 bacteriophage coordinating to the perovskite defect sites and the light scattering effect intensify when the M13 virus-added perovskite precursor solution is heated at 90 °C prior to the film formation. Heating the solution denatures the M13 bacteriophage by breaking their inter- and intra-molecular bondings. The denatured M13 bacteriophage-added perovskite solar cells exhibit an efficiency of 20.1% while the reference devices give an efficiency of 17.8%. The great improvement in efficiency comes from all of the three photovoltaic parameters, namely short-circuit current, open-circuit voltage, and fill factor, which correspond to the perovskite grain size, trap-site passivation, and charge transport, respectively.
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
10.1002/ADVS.202000782
