Ultrathin Anode Buffer Layer for Enhancing Performance of Polymer Solar Cells

A series of polymer solar cells (PSCs) based on poly[(4,8-bis-(2-ethylhexyloxy)-benzo[1,2-b:4,5-b′(dithiophene)-2,6-diyl-alt-(4-(2-ethylhexanoyl)-thieno[3,4-b]thiophene)-2,6-diyl] (PBDTTT-C) and [6,6]phenyl-C71-butyric acid methyl ester (PC71BM) were fabricated with various anode buffer layers. The...

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Main Authors: Dun Wang, Jian Wang, Ling-liang Li, Qiao-shi An, Hui Huang, Chao-qun Jiao, Yang Liu, Fu-jun Zhang
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2014/846581
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author Dun Wang
Jian Wang
Ling-liang Li
Qiao-shi An
Hui Huang
Chao-qun Jiao
Yang Liu
Fu-jun Zhang
author_facet Dun Wang
Jian Wang
Ling-liang Li
Qiao-shi An
Hui Huang
Chao-qun Jiao
Yang Liu
Fu-jun Zhang
author_sort Dun Wang
collection DOAJ
description A series of polymer solar cells (PSCs) based on poly[(4,8-bis-(2-ethylhexyloxy)-benzo[1,2-b:4,5-b′(dithiophene)-2,6-diyl-alt-(4-(2-ethylhexanoyl)-thieno[3,4-b]thiophene)-2,6-diyl] (PBDTTT-C) and [6,6]phenyl-C71-butyric acid methyl ester (PC71BM) were fabricated with various anode buffer layers. The power conversion efficiency (PCE) of PSCs was improved to 4.91% for the cells with PEDOT:PSS/LiF (1 nm) as anode buffer layer, which corresponds to 26.2% efficiency improvement compared with the cells with PEDOT:PSS as anode buffer layer. The PSCs with PEDOT:PSS/LiF as anode buffer layer show a maximum short-circuit density (Jsc) of 13.70 mA/cm2, with open circuit voltage (Voc) of 0.73 V and fill factor (FF) of 49.1% under illumination 100 mW/cm2 AM 1.5 G simulated solar light. The dominant mechanism for the performance improvement of PSCs could be attributed to the increased charge carrier collection ability by anode buffer layers.
format Article
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institution Kabale University
issn 1110-662X
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language English
publishDate 2014-01-01
publisher Wiley
record_format Article
series International Journal of Photoenergy
spelling doaj-art-b2cdbb87704f4b56b71fc1f45e1bb4f62025-02-03T05:58:33ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/846581846581Ultrathin Anode Buffer Layer for Enhancing Performance of Polymer Solar CellsDun Wang0Jian Wang1Ling-liang Li2Qiao-shi An3Hui Huang4Chao-qun Jiao5Yang Liu6Fu-jun Zhang7Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaA series of polymer solar cells (PSCs) based on poly[(4,8-bis-(2-ethylhexyloxy)-benzo[1,2-b:4,5-b′(dithiophene)-2,6-diyl-alt-(4-(2-ethylhexanoyl)-thieno[3,4-b]thiophene)-2,6-diyl] (PBDTTT-C) and [6,6]phenyl-C71-butyric acid methyl ester (PC71BM) were fabricated with various anode buffer layers. The power conversion efficiency (PCE) of PSCs was improved to 4.91% for the cells with PEDOT:PSS/LiF (1 nm) as anode buffer layer, which corresponds to 26.2% efficiency improvement compared with the cells with PEDOT:PSS as anode buffer layer. The PSCs with PEDOT:PSS/LiF as anode buffer layer show a maximum short-circuit density (Jsc) of 13.70 mA/cm2, with open circuit voltage (Voc) of 0.73 V and fill factor (FF) of 49.1% under illumination 100 mW/cm2 AM 1.5 G simulated solar light. The dominant mechanism for the performance improvement of PSCs could be attributed to the increased charge carrier collection ability by anode buffer layers.http://dx.doi.org/10.1155/2014/846581
spellingShingle Dun Wang
Jian Wang
Ling-liang Li
Qiao-shi An
Hui Huang
Chao-qun Jiao
Yang Liu
Fu-jun Zhang
Ultrathin Anode Buffer Layer for Enhancing Performance of Polymer Solar Cells
International Journal of Photoenergy
title Ultrathin Anode Buffer Layer for Enhancing Performance of Polymer Solar Cells
title_full Ultrathin Anode Buffer Layer for Enhancing Performance of Polymer Solar Cells
title_fullStr Ultrathin Anode Buffer Layer for Enhancing Performance of Polymer Solar Cells
title_full_unstemmed Ultrathin Anode Buffer Layer for Enhancing Performance of Polymer Solar Cells
title_short Ultrathin Anode Buffer Layer for Enhancing Performance of Polymer Solar Cells
title_sort ultrathin anode buffer layer for enhancing performance of polymer solar cells
url http://dx.doi.org/10.1155/2014/846581
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