title: Structural design of photonic crystal thin film silicon solar cells by sensitivity analysis: Inclusion of electrode absorption.
abstract: We carry out the structural design of photonic crystals (PCs) using sensitivity analysis for enhancing optical absorption of thin film microcrystalline silicon (μc-Si) solar cells. In this paper, we employ a model which includes absorption of not only the thin film μc-Si, but also the transparent conductive oxide and metal back reflector for design accuracy. We carry out structural design for this model using sensitivity analysis which maximizes optical absorption in μc-Si layer. As a result, we succeed in obtaining the maximum short circuit current density of 25.2 mA/cm2 for thin film (600-nm thick) μc-Si solar cells (1.4-fold increase compared to the case without a PC).
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Kawamoto
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Tanaka
authors.forename: Kenji
authors.initials: K
authors.lastname: Ishizaki
authors.forename: Menaka
authors.initials: M
authors.lastname: De Zoysa
authors.forename: Takashi
authors.initials: T
authors.lastname: Asano
authors.forename: Susumu
authors.initials: S
authors.lastname: Noda