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University of Groningen Device physics of colloidal quantum dot solar cells Speirs, Mark Jonathan

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University of Groningen

Device physics of colloidal quantum dot solar cells Speirs, Mark Jonathan

IMPORTANT NOTE: You are advised to consult the publisher's version (publisher's PDF) if you wish to cite from it. Please check the document version below.

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Publication date: 2017

Link to publication in University of Groningen/UMCG research database

Citation for published version (APA):

Speirs, M. J. (2017). Device physics of colloidal quantum dot solar cells. University of Groningen.

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Stellingen

behorende bij het proefschrift

Device physics of

colloidal quantum dot solar cells

van

Mark Jonathan Speirs

1. Building tandem solar cells is very challenging, but there is great potential for efficient solar cells. (Ch. 2).

2. Despite introducing an extra interface, adding a shell of CdS to quantum dots reduces the amount of surface trap states. (Ch. 3)

3. Temperature dependent measurements are a valuable tool in understanding the working mechanisms of solar cells. (Ch. 4)

4. There is still much room for improvement of PbS QD solar cells featuring a pn-junction by optimisation of the doping concentrations. (Ch. 4&5)

5. Alternatives to layer-by-layer deposition will have to be found if PbS QD solar cells are to become a viable technology.

6. Statements of scientists aren’t necessarily statements of science.

- John Lennox 7. I feel like one of the reasons we are struggling inadequately today is because we reckon our costs on too shortsighted a basis and are later overwhelmed with the unexpected costs brought about by our shortsightedness.

- Sir R. Buckminster ”Bucky” Fuller 8. There is a fine line between the Einstein’s (incorrectly attributed) definition

of insanity, and admirable perseverance.

9. Faith can offer little to science. To the scientist, much.

10. A good scientist must have enough humility to admit when he is wrong, and to ask questions about what he doesn’t understand.

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