Ultra‐High Voltage Multijunction Organic Solar Cells for Low‐Power Electronic Applications

Sullivan, Paul; Schumann, Stefan; Campo, Raffaello Da; Howells, Thomas J.; Duraud, Amelie; Shipman, Michael; Hatton, Ross A.; Jones, T. S.

doi:10.1002/aenm.201200560

Cited by 35 publications

(29 citation statements)

References 25 publications

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“…In a follow‐up study, Sullivan et al . sought to fully exploit the Cl‐BsubPc/Cl‐Cl 6 BsubPc structure by combining several Cl‐BsubPc/Cl‐Cl 6 BsubPc and Cl‐BsubPc/C 60 heterojunctions in tandem OPVs . While only negligible PCE gains were achieved, the resulting OPVs did produce extremely high V OC s of up to 7.04 V. In addition to high voltages, these tandem OPVs exhibited a reduced sensitivity to spectral changes due to their sole reliance on green light.…”

Section: Boron Subphthalocyaninesmentioning

confidence: 99%

Boron Subphthalocyanines and Silicon Phthalocyanines for Use as Active Materials in Organic Photovoltaics

Grant

Josey

Sampson

et al. 2019

The Chemical Record

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Organic photovoltaics (OPVs) have experienced continued interest over the last 25 years as a viable technology for the generation of power. Phthalocyanines are among the oldest commercial dyes and have been utilized in some of the earliest examples of OPVs. In recent years, the use of boron subphthalocyanines (BsubPcs) and silicon phthalocyanines (SiPcs) has attracted a flurry of interest with some examples of fullerene‐free devices reaching power conversion efficiencies >8 %. Unlike other more common divalent phthalocyanines such as copper or zinc, BsubPcs and SiPcs contain additional axial groups that can easily be functionalized without significantly affecting the optoelectronic properties of the macrocycle. This handle facilitates our ability to tune the solid‐state arrangement and other physical characteristics such as solubility ultimately giving us the ability to improve the thin film processing and final device performance. This review covers recent studies on the development of BsubPcs and SiPcs for use as active materials in organic photovoltaics.

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Section: Boron Subphthalocyaninesmentioning

confidence: 99%

Boron Subphthalocyanines and Silicon Phthalocyanines for Use as Active Materials in Organic Photovoltaics

Grant

Josey

Sampson

et al. 2019

The Chemical Record

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“…While great progress is being made, there is clearly room to improve the efficiency of IPV cells to reach their theoretical maximum, however, it should be noted that to create autonomous sensors, the power supplied by the energy harvester is just one of many parameters that must be considered, with the supply voltage of similar importance to minimize losses or remove the need for power management electronics [38].…”

Section: The Expected Market For Indoor Photovoltaicsmentioning

confidence: 99%

Technology and Market Perspective for Indoor Photovoltaic Cells

et al. 2019

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Indoor photovoltaic cells have the potential to power the Internet of Things ecosystem, including distributed and remote sensors, actuators, and communications devices. As the power required to operate these devices continues to decrease, the type and number of nodes that can now be persistently powered by indoor photovoltaic cells is rapidly growing. This will drive significant growth in the demand for indoor photovoltaics, creating a large alternative market for existing and novel photovoltaic technologies. With the re-emergence of interest in indoor photovoltaic cells, we provide an overview of this burgeoning field focusing on the technical challenges that remain to create energy autonomous sensors at viable price points, and the commercial challenges to be overcome for individual photovoltaic technologies to dominate this market. I. INTRODUCTION TO INDOOR PHOTOVOLTAICS The early years of solar-power electronic devices saw photovoltaic (PV) cells used in extremely low power but relatively expensive consumer devices, where their cost could easily be absorbed. For example, the designers of a smartwatch that sold for ~$100 could afford to incorporate a cell costing a few dollars. Figure 1 outlines how, as the number and types of low-power electronic devices have expanded over the years, their costs have reduced. At the same time, the cost of PV cells has also been reducing, and the performance increasing, so that now we can sensibly power a range of electronic devices including wireless sensors, RFID tags or Bluetooth Beacons. A significant portion of these new devices are part of the Internet of Things (IoT) ecosystem that promises large networks of connected devices collecting the Big Data upon which our medical, manufacturing, infrastructure, and energy industries will be monitored and optimized. Billions of wireless sensors are expected to be installed over the coming decade, with almost half to be located inside buildings [1]. Currently, the use of batteries to power these devices places significant constraints on their power consumption, where the range and frequency Technology and market perspective for indoor photovoltaic cells

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“…After the introduction of electron-withdrawing chlorine atoms on the periphery of a macrocycle, the Cl 6 SubPc molecule behaves as the electron acceptor with respect to the molecule on the other side of the heterointerface (e.g., unsubstituted SubPc [6,[18][19][20][21][22]), thereby participating in the separation of the photogenerated charges. In the bulk phase, addition of chlorine atoms to the conjugated macrocycle assists in getting the electron transporting organic semiconductors [7].…”

Section: Properties Of CL 6 Subpc Thin Filmsmentioning

confidence: 99%

Hexachlorinated Boron(III) Subphthalocyanine as Acceptor for Organic Photovoltaics: A Brief Overview

Pakhomov¹,

Travkin²,

Stuzhin³

2020

Recent Advances in Boron-Containing Materials

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A boron(III) complex of peripherally hexachlorinated subphthalocyanine, Cl 6 SubPc is a very promising small-molecule acceptor for application in organic photovoltaics. In this chapter the recent experimental results in the field are compared, and a critical review is given of the published works on the solar cells with the planar or bulk heterojunction architectures. The thin film properties of Cl 6 SubPc are also considered. The approaches to the further modification of the molecular structure of boron(III) subphthalocyanine-type compounds for the enhancement of their photoelectrical properties are discussed.

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Ultra‐High Voltage Multijunction Organic Solar Cells for Low‐Power Electronic Applications

Cited by 35 publications

References 25 publications

Boron Subphthalocyanines and Silicon Phthalocyanines for Use as Active Materials in Organic Photovoltaics

Boron Subphthalocyanines and Silicon Phthalocyanines for Use as Active Materials in Organic Photovoltaics

Technology and Market Perspective for Indoor Photovoltaic Cells

Hexachlorinated Boron(III) Subphthalocyanine as Acceptor for Organic Photovoltaics: A Brief Overview

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