Characterization of optical manipulation using microlens arrays depending on the materials and sizes in organic photovoltaics.

ABSTRACT: Various physical structures have improved light-harvesting and power-conversion efficiency in organic photovoltaic devices, and optical simulations have supported the improvement of device characteristics. Herein, we experimentally investigated how microlens arrays manipulate light propagation in microlens films and material stacks for organic photovoltaics to understand the influence of the constituent materials and sizes of the microlens. As materials to fabricate a microlens array, poly(dimethylsiloxane) and Norland Optical Adhesive 63 were adopted. The poly(dimethylsiloxane) microlens array exhibited higher total transmittance and higher diffuse transmittance, further enhancing the effective optical path and light extinction in material stacks for organic photovoltaics. This resulted i

SUBMITTER: Ko D 

PROVIDER: S-EPMC8695480 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature