Smooth Cellulose-based Films Embedded with Silver Nanowires as Transparent-Conductive Substrates for Advanced Optoelectronics Devices
Vidushi Aggarwal a, Joaquin Valdez Garcia a, Sirius Yli-Paavola a, Mahboubeh Hadadian a, Vipul Sharma a, Kati Miettunen a
a Department of Mechanical and Materials Engineering, University of Turku, Vesilinnantie 5, 20500 Turku, Finland
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV26)
Uppsala, Sweden, 2026 May 18th - 20th
Organizers: Gerrit Boschloo, Ellen Moons, Feng Gao and Anders Hagfeldt
Poster, Vidushi Aggarwal, 128
Publication date: 11th March 2026

This work explores conductive cellulose-based films embedded with silver nanowires (AgNWs) exhibiting high transparency and conductivity as potential bio-based substrates for optoelectronic devices. Cellulose, the most abundant biopolymer, has gained popularity as a sustainable material for developing multifunctional films for applications ranging from packaging to photovoltaics (PV) [1]. Cellulose offer advantages in terms of renewable origin, high functionality, and better recyclability compared to fossil-based materials such as glass and plastics. Recently, cellulose-based films emerged as a sustainable choice of substrates for advanced optoelectronics devices, including perovskite solar cells (PSCs) [2]. However, pure cellulose films typically present low optical transmittance, high surface roughness, and poor moisture barrier properties which limit their practical application as transparent-conductive substrates. Moreover, cellulose is inherently non-conductive and thus, films made from cellulose require deposition of transparent-conductive oxides such as indium-tin oxide (ITO), which is an energy intensive process and presents poor recycling opportunities [3]. Incorporation of conductive layers on film surface not only reduces its optical transparency but also increases surface roughness, which is unfavorable for use as a high-performance substrate.

VA, SY and KM thank Circular Materials Bioeconomy Network funded by Ministry of Education and Culture, Finland (CIMANET, Decision No. VN/3137/2024-OKM-6). JVG thanks Research Council of Finland, projects ECOSOL (347275) and BIOSOL (373667), and Ulla Tuominen Foundation. MH thanks PROFI7/SUSMAT funding provided by Research Council of Finland.

© FUNDACIO DE LA COMUNITAT VALENCIANA SCITO
We use our own and third party cookies for analysing and measuring usage of our website to improve our services. If you continue browsing, we consider accepting its use. You can check our Cookies Policy in which you will also find how to configure your web browser for the use of cookies. More info