Organic Materials Laboratory, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics, Co. Ltd. , 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-803, Republic of Korea.
System LSI, Samsung Electronics, Co. Ltd. , 95 Samsung 2-ro, Giheung-gu, Yongin-si, Gyeonggi-do 446-711, Republic of Korea.
ACS Appl Mater Interfaces. 2016 Oct 5;8(39):26143-26151. doi: 10.1021/acsami.6b07735. Epub 2016 Sep 23.
There are growing opportunities and demands for image sensors that produce higher-resolution images, even in low-light conditions. Increasing the light input areas through 3D architecture within the same pixel size can be an effective solution to address this issue. Organic photodiodes (OPDs) that possess wavelength selectivity can allow for advancements in this regard. Here, we report on novel push-pull D-π-A dyes specially designed for Gaussian-shaped, narrow-band absorption and the high photoelectric conversion. These p-type organic dyes work both as a color filter and as a source of photocurrents with linear and fast light responses, high sensitivity, and excellent stability, when combined with C60 to form bulk heterojunctions (BHJs). The effectiveness of the OPD composed of the active color filter was demonstrated by obtaining a full-color image using a camera that contained an organic/Si hybrid complementary metal-oxide-semiconductor (CMOS) color image sensor.
对于能够在低光照条件下生成更高分辨率图像的图像传感器，需求和机会日益增加。在相同像素尺寸内通过 3D 架构增加光输入区域，可以有效解决这个问题。具有波长选择性的有机光电二极管（OPD）在这方面可以取得进展。在这里，我们报告了新型的推挽 D-π-A 染料，专门设计用于具有高斯形状、窄带吸收和高光电流转换效率的应用。这些 p 型有机染料与 C60 结合形成体异质结（BHJ）时，作为色滤光片和光电流源均具有线性和快速光响应、高灵敏度和出色的稳定性。使用包含有机/硅混合互补金属氧化物半导体（CMOS）彩色图像传感器的相机获取全彩图像，证明了由有源色滤光片组成的 OPD 的有效性。
