有机单晶光电晶体管的研究进展
Organic single crystal phototransistors: Recent approaches and achievements
摘要:
与传统的无机光电晶体管相比,有机光电晶体管(OPTs)由于其固有的灵活性、重量轻、易于制造和低成本而引起了人们的极大兴趣,并被认为是下一代可穿戴电子产品的潜在候选者。目前,随着新型有机半导体的开发和器件制造工艺的优化,光学晶体管已经取得了重大进展。在各种类型的OPTs中,小分子有机单晶光电晶体管(OSCPT)由于其令人兴奋的特征而脱颖而出,例如相对于有机薄膜光电晶体管的长激子扩散长度和高载流子迁移率。本文简要介绍了OPTs的结构、工作原理和性能指标。然后,我们概述了最近的方法和取得的成就,为发展OSCPT。最后,我们聚焦潜在的未来方向,以解决在这一领域的现有挑战,并加快推进OSCPT的实际应用。
英文摘要:
Organic phototransistors (OPTs), compared to traditional inorganic counterparts, have attracted a great deal of interest because of their inherent flexibility, light-weight, easy and low-cost fabrication, and are considered as potential candidates for next-generation wearable electronics. Currently, significant advances have been made in OPTs with the development of new organic semiconductors and optimization of device fabrication protocols. Among various types of OPTs, small molecule organic single crystal phototransistors (OSCPTs) standout because of their exciting features, such as long exciton diffusion length and high charge carrier mobility relative to organic thinfilm phototransistors. In this review, a brief introduction to device architectures, working mechanisms and figure of merits for OPTs is presented. We then overview recent approaches employed and achievements made for the development of OSCPTs. Finally, we spotlight potential future directions to tackle the existing challenges in this field and accelerate the advancement of OSCPTs towards practical applications.
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