Cui Yong, Hong Ling, Hou Jianhui
State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
University of Chinses Academy of Sciences, Beijing 100049, China.
ACS Appl Mater Interfaces. 2020 Sep 2;12(35):38815-38828. doi: 10.1021/acsami.0c10444. Epub 2020 Aug 20.
With the growing development of the Internet of Things, organic photovoltaic (OPV) cells are highly desirable for indoor applications because of the unique features of light weight, flexibility, and coloration. Emission spectra of the commonly used indoor light sources are much narrower with lower light intensity as compared to the standard solar spectrum. High tunability in optical absorption, insensitivity to series resistance and the active layer thickness, and mild operating conditions make indoor OPV cells promising as a practically relevant technology. Currently, the OPV module has obtained a power conversion efficiency of over 20%, with excellent stability under indoor conditions. However, at the present stage, the device physics investigations and material design strategies developed in an OPV cell for indoor applications lag behind those for outdoor applications. In particular, the emerging characterizations in photovoltaic measurements have severely affected the reliability of reports. This Spotlight on Applications highlights these opportunities and challenges of OPV cells for indoor applications and reviews the recent progress in indoor OPV cells. In addition, we summarize some studies related to accurate measurement and provide some recommendations.
随着物联网的不断发展，有机光伏（OPV）电池因其重量轻、柔韧性好和可着色等独特特性，在室内应用中备受青睐。与标准太阳光谱相比，常用室内光源的发射光谱更窄，光强度更低。光学吸收的高可调性、对串联电阻和有源层厚度的不敏感性以及温和的工作条件，使得室内OPV电池有望成为一项切实可行的相关技术。目前，OPV模块已实现超过20%的功率转换效率，在室内条件下具有出色的稳定性。然而，现阶段，用于室内应用的OPV电池的器件物理研究和材料设计策略落后于室外应用。特别是，光伏测量中新兴的表征方法严重影响了报告的可靠性。本应用聚焦突出了室内应用OPV电池的这些机遇和挑战，并回顾了室内OPV电池的最新进展。此外，我们总结了一些与精确测量相关的研究并提供了一些建议。
