Micro-textured conductive polymer/silicon heterojunction photovoltaic devices with high efficiency

Ting Gang Chen*, Bo Yu Huang, En Chen Chen, Peichen Yu, Hsin-Fei Meng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

121 Scopus citations


In this work, hybrid heterojunction solar cells are demonstrated based on a conjugate polymer poly(3,4-ethylenedioxy-thiophene):poly(styrenesulfonate) (PEDOT:PSS) directly spun-cast on micro-textured n-type crystalline silicon wafers. The fabrication conditions suggest that the organic coverage on the micro-textured surface is excellent and key to achieve high efficiency, leading to an average power conversion efficiency of 9.84. A one-dimensional drift-diffusion model is then developed based on fitting the device characteristics with experimentally determined PEDOT:PSS parameters and projects an ultimate efficiency above 20 for organic/inorganic hybrid photovoltaics. The simulation results reveal the impacts of defect densities, back surface recombination, doping concentration, and band alignment.

Original languageEnglish
Article number033301
JournalApplied Physics Letters
Issue number3
StatePublished - 16 Jul 2012

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