Stable, High‐Sensitivity and Fast‐Response Photodetectors Based on Lead‐Free Cs2AgBiBr6 Double Perovskite Films

Advanced Optical MaterialsVolume 7, Issue 13 1801732 Communication Stable, High-Sensitivity and Fast-Response Photodetectors Based on Lead-Free Cs2AgBiBr6 Double Perovskite Films Jie Yang, Jie Yang International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen, 518060 China Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 SwedenSearch for more papers by this authorChunxiong Bao, Chunxiong Bao International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen, 518060 China Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 SwedenSearch for more papers by this authorWeihua Ning, Weihua Ning Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 Sweden Key Lab for Flexible Electronics and Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816 P. R. ChinaSearch for more papers by this authorBo Wu, Bo Wu Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University (NTU)21 Nanyang Link, Singapore, 637371 SingaporeSearch for more papers by this authorFuxiang Ji, Fuxiang Ji Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 SwedenSearch for more papers by this authorZhibo Yan, Zhibo Yan Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 Sweden Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093 P. R. ChinaSearch for more papers by this authorYoutian Tao, Youtian Tao Key Lab for Flexible Electronics and Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816 P. R. ChinaSearch for more papers by this authorJun-Ming Liu, Jun-Ming Liu Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093 P. R. ChinaSearch for more papers by this authorTze Chien Sum, Tze Chien Sum Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University (NTU)21 Nanyang Link, Singapore, 637371 SingaporeSearch for more papers by this authorSai Bai, Corresponding Author Sai Bai sai.bai@liu.se Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 SwedenE-mail: feng.gao@liu.se, sai.bai@liu.se, wjzhang@szu.edu.cnSearch for more papers by this authorJianpu Wang, Jianpu Wang Key Lab for Flexible Electronics and Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816 P. R. ChinaSearch for more papers by this authorWei Huang, Wei Huang Key Lab for Flexible Electronics and Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816 P. R. ChinaSearch for more papers by this authorWenjing Zhang, Corresponding Author Wenjing Zhang wjzhang@szu.edu.cn International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen, 518060 ChinaE-mail: feng.gao@liu.se, sai.bai@liu.se, wjzhang@szu.edu.cnSearch for more papers by this authorFeng Gao, Corresponding Author Feng Gao feng.gao@liu.se orcid.org/0000-0002-2582-1740 Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 SwedenE-mail: feng.gao@liu.se, sai.bai@liu.se, wjzhang@szu.edu.cnSearch for more papers by this author Jie Yang, Jie Yang International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen, 518060 China Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 SwedenSearch for more papers by this authorChunxiong Bao, Chunxiong Bao International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen, 518060 China Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 SwedenSearch for more papers by this authorWeihua Ning, Weihua Ning Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 Sweden Key Lab for Flexible Electronics and Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816 P. R. ChinaSearch for more papers by this authorBo Wu, Bo Wu Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University (NTU)21 Nanyang Link, Singapore, 637371 SingaporeSearch for more papers by this authorFuxiang Ji, Fuxiang Ji Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 SwedenSearch for more papers by this authorZhibo Yan, Zhibo Yan Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 Sweden Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093 P. R. ChinaSearch for more papers by this authorYoutian Tao, Youtian Tao Key Lab for Flexible Electronics and Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816 P. R. ChinaSearch for more papers by this authorJun-Ming Liu, Jun-Ming Liu Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093 P. R. ChinaSearch for more papers by this authorTze Chien Sum, Tze Chien Sum Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University (NTU)21 Nanyang Link, Singapore, 637371 SingaporeSearch for more papers by this authorSai Bai, Corresponding Author Sai Bai sai.bai@liu.se Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 SwedenE-mail: feng.gao@liu.se, sai.bai@liu.se, wjzhang@szu.edu.cnSearch for more papers by this authorJianpu Wang, Jianpu Wang Key Lab for Flexible Electronics and Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816 P. R. ChinaSearch for more papers by this authorWei Huang, Wei Huang Key Lab for Flexible Electronics and Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816 P. R. ChinaSearch for more papers by this authorWenjing Zhang, Corresponding Author Wenjing Zhang wjzhang@szu.edu.cn International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen, 518060 ChinaE-mail: feng.gao@liu.se, sai.bai@liu.se, wjzhang@szu.edu.cnSearch for more papers by this authorFeng Gao, Corresponding Author Feng Gao feng.gao@liu.se orcid.org/0000-0002-2582-1740 Department of Physics, Chemistry, and Biology (IFM) Linköping University, Linköping, SE-58183 SwedenE-mail: feng.gao@liu.se, sai.bai@liu.se, wjzhang@szu.edu.cnSearch for more papers by this author First published: 03 May 2019 https://doi.org/10.1002/adom.201801732Citations: 87Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Solution-processed metal halide perovskites (MHPs) have demonstrated great advances on achieving high-performance photodetectors. However, the intrinsic material instability and the toxicity of lead still hinder the practical applications of MHPs-based photodetectors. In this work, the first highly sensitive and fast-response lead-free perovskite photodetectors based on Cs2AgBiBr6 double perovskite films are demonstrated. A convenient solution method is developed to deposit high-quality Cs2AgBiBr6 film with large grain sizes, low trap densities, and long charge carrier lifetimes. Incorporated within a photodiode device architecture comprised of optimized hole- and electron-transporting layers, lead-free perovskite photodetectors are achieved exhibiting a high detectivity of 3.29 × 1012 Jones, a large linear dynamic range of 193 dB, and a fast response time of ≈17 ns. All the key figures of merit of the devices are comparable with the reported best-performing photodetectors based on lead halide perovskites. In addition, the resulting devices exhibit excellent thermal and environmental stability. The nonencapsulated devices show negligible degradation after thermal stressing at 150 °C and less than 5% degradation in the photoresponsivity after storage in ambient air for ≈2300 h. The results demonstrate the great potential of the lead-free Cs2AgBiBr6 double perovskite in applications for environmentally friendly and high-performance photodetectors. Conflict of Interest The authors declare no conflict of interest. Citing Literature Supporting Information Filename Description adom201801732-sup-0001-S1.pdf856.4 KB Supplementary Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume7, Issue13July 4, 20191801732 RelatedInformation