What color is the emitted light

Reference no: EM131022708

CdS has a band gap of 2.4 eV. If large crystals of CdS are illuminated with ultraviolet light, they emit light equal to the band gap energy.

(a) What color is the emitted light?

(b) Would appropriately sized CdS quantum dots be able to emit blue light?

(c)What about red light?

Reference no: EM131022708

Questions Cloud

Develop a plan for an event : Develop a plan for an event (e.g., golf tournament; gala ball; annual meeting; or a series of lectures, workshops, or seminars where a fee is charged for attendance or participation) for your organization.

How structures relate to relative electrical conductivities : The electrical conductivity of titanium is approximately 2500 times greater than that of silicon. Titanium has a hexagonal close-packed structure, and silicon has the diamond structure. Explain how the structures relate to the relative electrical ..

Making up any shortfall in the spot market : The quantity of copper produced could be 10,000, 40,000 or 15,000 pounds with equal likelihood. The cash price could be $4, $6, or $11 per pound with equal likelihood. You could sell all or part of the forward now at $7 making up any shortfall in the..

Summarize the key points of the individual assignments : Identify regulatory compliance requirements for business managerial situations including those that relate to Sarbanes-Oxley Act of 2002 (SOX).

What color is the emitted light : CdS has a band gap of 2.4 eV. If large crystals of CdS are illuminated with ultraviolet light, they emit light equal to the band gap energy. What color is the emitted light? Would appropriately sized CdS quantum dots be able to emit blue light?

Alex immediately initiated the wire transfer : On a warm summer day in early July 2011, Ms. Smith of the executive team of X Company sat in her office preparing a request form for routine travel expense reimbursement.

What is the deadweight loss associated with this tariff : Suppose that this small open economy imposes a tariff of $2 on the good. What is the deadweight loss associated with this tariff

What are the characteristics of effective teams : What are the characteristics of effective teams? How do roles, needs, and diversity affect teamwork? Provide specific examples. What are components of group diversity?

How sarbanes-oxley affected the agency : Explain how Sarbanes-Oxley strengthened the enforcement of securities fraud and helped with the implementation of accounting reforms.

User Account

All Pages