公开(公告)号：US20170338431A1

公开(公告)日：2017-11-23

申请号：US15362964

申请日：2016-11-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： TAKKYUN RO ,  Kyung Bae Park ,  Ryuichi Satoh ,  Yong Wan Jin ,  Chul Joon Heo

IPC: H01L51/44 ,  H01L27/30 ,  H01L51/00

CPC classification number: H01L51/447 ,  H01L27/307 ,  H01L51/0052 ,  H01L51/0053 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0062 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/4253 ,  H01L51/4273 ,  H01L51/442 ,  H01L51/448 ,  H01L51/5056 ,  Y02E10/549

Abstract: An organic photoelectronic device may include a photoelectronic conversion layer between a first electrode and a second electrode and a buffer layer on the photoelectronic conversion layer. The photoelectronic conversion layer may be between a first electrode and a second electrode, and the buffer layer may be between the first electrode and the photoelectronic conversion layer. The photoelectronic conversion layer may include at least a first light absorbing material and a second light absorbing material configured to provide a p-n junction. The buffer layer may include the first light absorbing material and a non-absorbing material associated with a visible wavelength spectrum of light. The non-absorbing material may have a HOMO energy level of about 5.4 eV to about 5.8 eV. The non-absorbing material may have an energy bandgap of greater than or equal to about 2.8 eV.