In this work, we present the realization and characterization of bulk-heterojunction (BHJ) solar cells in which we use a spin-coated polyethylenimine-ethoxylated (PEIE) layer as electron-transporting layer deposited from a fully water-based solution. We investigated several concentrations of PEIE in aqueous solution and characterized the chemical and electrical behavior of PEIE-coated fluorinated tin oxide (FTO) substrates. We realized BHJ solar cells using P3HT:PC60BM as active layer achieving a maximum efficiency of 4% that outperform the device fabricated using a 2-methoxyethanol-based PEIE solution considered as reference. Moreover, devices fabricated with the water-based PEIE solution showed a higher shelf-life stability compared to those made with the 2-methoxyethanol-based PEIE solution. The performances of the devices realized with the water-based solution were characterized over a period of more than 6months showing a decrease of 30% in efficiency. © 2015 WILEY-VCH Verlag GmbH
Polino, G., Casaluci, S., Dianetti, M., Dell'Elce, S., Liscio, A., Mirruzzo, V., et al. (2015). Inverted Bulk-Heterojunction Solar Cells using Polyethylenimine-Ethoxylated Processed from a Fully Aqueous Dispersion as Electron-Transport Layer. ENERGY TECHNOLOGY, 3(11), 1152-1158 [10.1002/ente.201500154].
Inverted Bulk-Heterojunction Solar Cells using Polyethylenimine-Ethoxylated Processed from a Fully Aqueous Dispersion as Electron-Transport Layer
Dell'Elce, Simone;Reale, Andrea;
2015
Abstract
In this work, we present the realization and characterization of bulk-heterojunction (BHJ) solar cells in which we use a spin-coated polyethylenimine-ethoxylated (PEIE) layer as electron-transporting layer deposited from a fully water-based solution. We investigated several concentrations of PEIE in aqueous solution and characterized the chemical and electrical behavior of PEIE-coated fluorinated tin oxide (FTO) substrates. We realized BHJ solar cells using P3HT:PC60BM as active layer achieving a maximum efficiency of 4% that outperform the device fabricated using a 2-methoxyethanol-based PEIE solution considered as reference. Moreover, devices fabricated with the water-based PEIE solution showed a higher shelf-life stability compared to those made with the 2-methoxyethanol-based PEIE solution. The performances of the devices realized with the water-based solution were characterized over a period of more than 6months showing a decrease of 30% in efficiency. © 2015 WILEY-VCH Verlag GmbHI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
