Journal ArticleDOI
Efficient ternary bulk heterojunction solar cells based on small molecules only
Tzu-Yen Huang,Tzu-Yen Huang,Dhananjaya Patra,Yu-Sheng Hsiao,Sheng Hsiung Chang,Chun Guey Wu,Kuo-Chuan Ho,Chih-Wei Chu +7 more
Reads0
Chats0
TLDR
In this article, an all-small-molecule ternary BHJ solar cell incorporating [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) and indene-C60 bisadduct (ICBA) as mixed acceptors and the conjugated small molecule (2Z,2′E)-dioctyl 3,3′-(5,5′,5,4-b′]dithiophene-2,6-diyl)bis(3,4′Abstract:
Ternary bulk heterojunctions (BHJs) are platforms that can improve the power conversion efficiencies of organic solar cells. In this paper, we report an all-small-molecule ternary BHJ solar cell incorporating [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) and indene-C60 bisadduct (ICBA) as mixed acceptors and the conjugated small molecule (2Z,2′E)-dioctyl 3,3′-(5′′,5′′′′′-(4,8-bis(5-octylthiophen-2-yl)benzo[1,2-b:5,4-b′]dithiophene-2,6-diyl)bis(3,4′,4′′-trioctyl-[2,2′:5′,2′′-terthiophene]-5′′,5-diyl))bis(2-cyanoacrylate) (BDT6T) as a donor. When incorporating a 15% content of ICBA relative to PC71BM, the ternary BHJ solar cell reached a power conversion efficiency of 6.36% with a short-circuit current density (JSC) of 12.00 mA cm−2, an open-circuit voltage (VOC) of 0.93 V, and a fill factor of 0.57. The enhancement in efficiency, relative to that of the binary system, resulted mainly from the increased value of JSC, attributable to not only the better intermixing of the donor and acceptor that improved charge transfer but also the more suitable morphology for efficient dissociation of excitons and more effective charge extraction. Our results suggest that there is great potential for exceeding the efficiencies of binary solar cells by adding a third component, without sacrificing the simplicity of the fabrication process.read more
Citations
More filters
Journal ArticleDOI
Organic Optoelectronic Materials: Mechanisms and Applications
TL;DR: The article reviews the current understanding of the physical mechanisms that determine the (opto)electronic properties of high-performance organic materials and highlights the capabilities of various experimental techniques for characterization, summarizes top-of-the-line device performance, and outlines recent trends in the further development of the field.
Journal ArticleDOI
Reducing the efficiency–stability–cost gap of organic photovoltaics with highly efficient and stable small molecule acceptor ternary solar cells
Derya Baran,Derya Baran,Derya Baran,Raja Shahid Ashraf,Raja Shahid Ashraf,David Hanifi,Maged Abdelsamie,Nicola Gasparini,Jason A. Röhr,Sarah Holliday,Andrew Wadsworth,Sarah Lockett,Marios Neophytou,Christopher J. M. Emmott,Jenny Nelson,Christoph J. Brabec,Aram Amassian,Alberto Salleo,Thomas Kirchartz,Thomas Kirchartz,James R. Durrant,Iain McCulloch,Iain McCulloch +22 more
TL;DR: This work demonstrates highly efficient and stable solar cells using a ternary approach, wherein two non-fullerene acceptors are combined with both a scalable and affordable donor polymer, poly(3-hexylthiophene) (P3HT), and a high-efficiency, low-bandgap polymer in a single-layer bulk-heterojunction device.
Journal ArticleDOI
Versatile ternary organic solar cells: a critical review
TL;DR: In this paper, the authors summarize the recent progress of ternary solar cells and try to concise out the scientific issues in preparing high performance TSSs, which is the best candidate due to the cell with a high power conversion efficiency, easy fabrication and low cost.
Journal ArticleDOI
Ternary solar cells with a mixed face-on and edge-on orientation enable an unprecedented efficiency of 12.1%
TL;DR: In this paper, a ternary blend with a face-on and edge-on co-existent texture was proposed, which is far better than that of the face on orientated host film.
Journal ArticleDOI
16.7%-efficiency ternary blended organic photovoltaic cells with PCBM as the acceptor additive to increase the open-circuit voltage and phase purity
Ming Ao Pan,Ming Ao Pan,Ming Ao Pan,Tsz-Ki Lau,Yabing Tang,Yi Ching Wu,Yi Ching Wu,Tao Liu,Tao Liu,Kun Li,Ming Chou Chen,Ming Chou Chen,Xinhui Lu,Wei Ma,Chuanlang Zhan,Chuanlang Zhan +15 more
TL;DR: In this paper, a ternary material approach was proposed to increase the open-circuit voltage, shortcircuit current density, and fill factor of a binary device based on Y6 and a donor polymer named PM6.
References
More filters
Journal ArticleDOI
Polymer solar cells
TL;DR: In this article, a review summarizes recent progress in the development of polymer solar cells and provides a synopsis of major achievements in the field over the past few years, while potential future developments and the applications of this technology are also briefly discussed.
Journal ArticleDOI
π-Conjugated Polymers for Organic Electronics and Photovoltaic Cell Applications†
TL;DR: In this article, a review of π-conjugated polymeric semiconductors for organic thin-film (or field effect) transistors (OTFTs or OFETs) and bulk-heterojunction photovoltaic (or solar) cell (BHJ-OPV or OSC) applications are summarized and analyzed.
Journal ArticleDOI
Small molecule organic semiconductors on the move: promises for future solar energy technology.
Amaresh Mishra,Peter Bäuerle +1 more
TL;DR: On the eve of commercialization of organic solar cells, this review provides an overview over efficiencies attained with small molecules/oligomers in OSCs and reflects materials and device concepts developed over the last decade.
Journal ArticleDOI
Single-junction polymer solar cells with high efficiency and photovoltage
Zhicai He,Biao Xiao,Feng Liu,Hongbin Wu,Yali Yang,Steven Xiao,Cheng Wang,Thomas P. Russell,Yong Cao +8 more
TL;DR: In this paper, a photoactive layer made from a newly developed semiconducting polymer with a deepened valence energy level is used to reduce the tail state density below the conduction band of the electron acceptor.
Journal ArticleDOI
Solution-processed small-molecule solar cells with 6.7% efficiency
Yanming Sun,Gregory C. Welch,Wei Lin Leong,Christopher J. Takacs,Guillermo C. Bazan,Alan J. Heeger +5 more
TL;DR: Efficient solution-processed SM BHJ solar cells based on a new molecular donor, DTS(PTTh(2))(2) are reported and it is demonstrated that solar cells fabricated from small donor molecules can compete with their polymeric counterparts.