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Hybrid solar cells with conducting polymers and vertically aligned silicon nanowire arrays: The effect of silicon conductivity
- Hybrid solar cells with conducting polymers and vertically aligned silicon nanowire arrays: The effect of silicon conductivity
- Woo, S[Woo, Sungho]; Jeong, JH[Jeong, Jae Hoon]; Lyu, HK[Lyu, Hong Kun]; Jeong, S[Jeong, Seonju]; Sim, JH[Sim, Jun Hyoung]; Kim, WH[Kim, Wook Hyun]; Han, YS[Han, Yoon Soo]; Kim, Y[Kim, Youngkyoo]
- DGIST Authors
- Woo, S[Woo, Sungho]; Jeong, JH[Jeong, Jae Hoon]; Lyu, HK[Lyu, Hong Kun]; Jeong, S[Jeong, Seonju]; Sim, JH[Sim, Jun Hyoung]; Kim, WH[Kim, Wook Hyun]
- Issue Date
- Physica B: Condensed Matter, 407(15), 3059-3062
- Article Type
- Article; Proceedings Paper
- Conducting Polymers; Conductive Silicon; Conductivity; Device Performance; Electric Conductivity; Electric Resistance; Electrochemical Redox Reactions; Fill-Factor; Heterojunctions; Hybrid Solar Cells; N-Si Wafers; N Type Silicon; Nanowires; Organic-Inorganic Hybrids; P-Type; PEDOT:PSS; Redox Reactions; Series Resistances; Si Nanowire; Si Nanowire Array; Silicon; Silicon Nanowire Arrays; Silicon Wafers; Solar Cells; Surface Area; Vertically Aligned
- Organic/inorganic hybrid solar cells, based on vertically aligned n-type silicon nanowires (n-Si NWs) and p-type conducting polymers (PEDOT:PSS), were investigated as a function of Si conductivity. The n-Si NWs were easily prepared from the n-Si wafer by employing a silver nanodot-mediated micro- electrochemical redox reaction. This investigation shows that the photocurrent-to-voltage characteristics of the n-Si NW/PEDOT:PSS cells clearly exhibit a stable rectifying diode behavior. The increase in current density and fill factor using high conductive silicon is attributed to an improved charge transport towards the electrodes achieved by lowering the devices series resistance. Our results also show that the surface area of the nanowire that can form heterojunction domains significantly influences the device performance. © 2011 Elsevier B.V. All rights reserved.
- Elsevier B.V.
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