title: Highly efficient semitransparent polymer solar cells with color rendering index approaching 100 using one-dimensional photonic crystal.
abstract: Window application is the important aim for semitransparent solar cells (STPSC) investigation. Here, we demonstrate a method to achieve significantly improved color rendering index (CRI), depressed chromaticity difference (DC), and enhanced power conversion efficiency (PCE) simultaneously by introducing the one-dimensional photonic crystals (1DPCs) Bragg reflector structure onto the STPSC. The device performance is studied from aspects of color perception, electrical properties, and theoretical optical simulations. The STPSCs exhibit achromatic transparency nature color perceptions, especially for the STPSCs with 1DPCs (pairs ≥ 3) under AM 1.5G illumination light source, standard illuminant D65, and standard illuminant A. The excellent CRI is approaching 97 with lower DC about 0.0013 for the device with 5 pairs of 1DPC illumined by AM 1.5G illumination light source. At the same time, the PCE of STPSC devices with 5 pairs of 1DPC was improved from 4.87 ± 0.14% to 5.31 ± 0.13% compared to without. This method provides a facilitative approach to realizing excellent SPTSC window application.
authors: †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
authors: Wenjuan
authors: W
authors: Yu
authors: †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
authors: Xu
authors: X
authors: Jia
authors: ‡School of Applied Physics and Materials, Institute of Thin Film and Nanomaterials, WuYi University, No. 22 Dongchen Cun, Jiangmen 529020, People's Republic of China.
authors: Yongbing
authors: Y
authors: Long
authors: †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
authors: Liang
authors: L
authors: Shen
authors: §Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130022, People's Republic of China.
authors: Yan
authors: Y
authors: Liu
authors: †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
authors: Wenbin
authors: W
authors: Guo
authors: †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
authors: Shengping
authors: S
authors: Ruan
keywords: CIE; CRI; DC; IDPCs; STPSC