Naphthalocyanine-based NIR organic photodiode: Understanding the role of different types of fullerenes
Document Type
Article
Publication Date
11-1-2021
Abstract
In this work, we presented experimental observation on solution-processed bulk heterojunction organic photodiode using vanadyl 2,11,20,29-tetra tert-butyl 2,3 naphthalocyanine (VTTBNc) as a p-type material. VTTBNc is blended with two different acceptors, which are PC61BM and PC71BM, to offer further understanding in evaluating the performance in organic photodiode (OPD). The blend film of VTTBNc:PC71BM with a volumetric ratio of 1:1 exhibits optimized performance in the VTTBNc blend structure with 2.31 x 10(9) Jones detectivity and 26.11 mA/W responsivity at a -1 V bias. The response and recovery time of VTTBNc:PC71BM were recorded as 241 ms and 310 ms, respectively. The light absorption measurement demonstrated that VTTBNc could extend the light absorption to the near-infrared (NIR) region. The detail of the enhancement of the performance by adding VTTBNc to the blend was further explained in the discussion section.
Keywords
Organic photodiode, NIR, Naphthalocyanine, Fullerene, Solution-processed
Divisions
Science
Funders
Universiti Malaya,Ministry of Education, Malaysia[ST025-2020],Ministry of Education, Malaysia[GPF080B-2020]
Publication Title
Micromachines
Volume
12
Issue
11
Publisher
MDPI
Publisher Location
ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND