DataVXACS Energy LettersPaper
journal article·2020-07-10

Hybrid Quantum Dot/Organic Heterojunction: A Route to Improve Open-Circuit Voltage in PbS Colloidal Quantum Dot Solar Cells

Yannan Zhang, Yuanyuan Kan, Ke Gao, Mengfan Gu, Yao Shi, Xuliang Zhang, Ye Xue, Xuning Zhang, Zeke Liu, Yuan Zhang, Jianyu Yuan, Wanli Ma, Alex K.-Y. Jen

ACS Energy Letters· Volume 5· Issue 7
Publisher page
Source abstract

Abstract

We have successfully demonstrated the effect of a thin organic bulk-heterojunction (BHJ) interlayer on improving the photovoltaic performance of lead sulfide (PbS) colloidal quantum dot (CQD) solar cells. Multiple organic BHJ films with PTB7-Th blending with various N-type acceptors have been introduced as hole-transporting layer (HTL) in PbS solar cells. Significant enhancement in Voc was achieved in the hybrid devices compared to devices based on conventional HTLs like 1,2-ethanedithiol-treated PbS. Systematic characterizations reveal that the hybrid CQD/organic BHJ architecture can effectively modulate the interfacial charge dynamics and lead to enhanced external quantum efficiency, resulting in a champion efficiency of 12.02%. Solution-processed hybrid CQD/organic architecture may become a universal approach to improve the photovoltaic performance and scalability of PbS CQD solar cells.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Quantum Dots Synthesis And Properties · Perovskite Materials and Applications · Organic Electronics and Photovoltaics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P.R. China

Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195-2120, United States

HEEGER Beijing Research & Development Center, School of Chemistry, Beihang University, Beijing 100191, China

Funding

Ministry of Science and Technology of the People's Republic of China · China Postdoctoral Science Foundation · Natural Science Foundation of Jiangsu Province · National Natural Science Foundation of China · Postgraduate Research & Practice Innovation Program of Jiangsu Province

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