Organic semiconductor heterojunctions and its application in organic light-emitting diodes

Description

This book systematically introduces the most important aspects of organic semiconductor heterojunctions, including the basic concepts and electrical properties. It comprehensively discusses the application of organic semiconductor heterojunctions as charge injectors and charge generation layers in organic light-emitting diodes (OLEDs). Semiconductor heterojunctions are the basis for constructing high-performance optoelectronic devices. In recent decades, organic semiconductors have been increasingly used to fabricate heterojunction devices, especially in OLEDs, and the subject has attracted a great deal of attention and evoked many new phenomena and interpretations in the field. This important application is based on the low dielectric constant of organic semiconductors and the weak non-covalent electronic interactions between them, which means that they easily form accumulation heterojunctions. As we know, the accumulation-type space charge region is highly conductive, which is an important property for highly efficient charge generation in their application as charge injector and charge generation layer in OLEDs. This book serves as a valuable reference for researchers and as a textbook for graduate students focusing on the study and development of OLED for display and lighting. Front Matter ....Pages i-viii Physics Basis of Organic Semiconductor Heterojunctions (Dongge Ma, Yonghua Chen)....Pages 1-36 Electrical Properties of Organic Semiconductor Heterojunctions (Dongge Ma, Yonghua Chen)....Pages 37-58 Organic Semiconductor Heterojunctions as Charge Injector in Organic Light-Emitting Diodes (Dongge Ma, Yonghua Chen)....Pages 59-88 Organic Semiconductor Heterojunctions as Charge Generation Layer in Tandem Organic Light-Emitting Diodes (Dongge Ma, Yonghua Chen)....Pages 89-126 Tandem White Organic Light-Emitting Diodes Based on Organic Semiconductor Heterojunctions (Dongge Ma, Yonghua Chen)....Pages 127-151 Back Matter ....Pages 153-153