About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Energy Materials for Sustainable Development
|
| Presentation Title |
POLYTHIOPHENE BASED P-N JUNCTION SOLAR CELLS |
| Author(s) |
Geethanath Duggiralla, Dianlu Jiang |
| On-Site Speaker (Planned) |
Geethanath Duggiralla |
| Abstract Scope |
This study presents a novel approach to improve the efficiency of polythiophene-based solar cells using TiO₂ nanospikes as an adhesion layer. Polythiophene films were synthesized via photoelectrochemical polymerization, followed by precision electrochemical P- and N-doping using cyclic voltammetry and amperometry. Optimized doping improved conductivity and charge mobility, increasing power conversion efficiency from 1% to 2.1%. The TiO₂ nanospike layer, applied via spin coating and thermal processing, significantly enhanced dye absorption and polymer adhesion, enabling stable junction formation. Photovoltaic performance was characterized through linear sweep voltammetry under light and dark conditions, with the best samples achieving open-circuit voltages exceeding 1.6 V. This work highlights the combined effect of nanostructured substrates and controlled doping in advancing polymer-based photovoltaics, with implications for flexible and sustainable energy devices. |